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Sheikh A, Soni K, Brajpuriya R, Lakshmi N. Investigation of the structural and electrochemical properties of a ZnO–SnO 2 composite and its electrical properties for application in dye-sensitized solar cells. NEW J CHEM 2023. [DOI: 10.1039/d3nj00573a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
This study compares photovoltaic and electrochemical properties of nano sized ZnO–SnO2 composite as photoanode material made by a simple but effective mechanical mixing method with Ru N719 dye for energy harvesting applications in DSSCs.
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Yan C, Wang Y, Zhu L, Jiang J, Hu Y, Cui Q, Lou Z, Hou Y, Teng F. Metal oxide nanoparticle-modified ITO electrode for high-performance solution-processed perovskite photodetectors. RSC Adv 2022; 12:5638-5647. [PMID: 35425538 PMCID: PMC8981377 DOI: 10.1039/d1ra08764a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/30/2022] [Indexed: 11/21/2022] Open
Abstract
Low dark current density plays a key role in determining the overall performance of perovskite photodetectors (PPDs). To achieve this goal, a hole transport layer (HTL) on the ITO side and a hole blocking layer (HBL) on the metal electrode side are commonly introduced in PPDs. Unlike traditional approaches, we realized a high-performance solution-processed broadband PPD using metal oxide (MO) nanoparticles (NPs) as the HBL on the ITO electrode and PC61BM as another HBL on the metal electrode side to reduce the device dark current. The PPDs based on TiO2 and SnO2 NP-modified layers show similar device performances at −0.5 V: a greater than 105 on/off ratio; over 100 dB linear dynamic range (LDR) under different visible light illumination; around 0.2 A W−1 responsivity (R); greater than 1012 jones detectivity (D*); and ∼20 μs rise time of the device. The MO NP interfacial layer can significantly suppress charge injection in the dark, while the accumulated photogenerated charges at the interface between the MO layer and the perovskite layer introduce band bending, leading to dramatically increased current under illumination. Therefore, the dark current density of the devices is significantly reduced and the optical gain is drastically enhanced. However, after UV illumination, the dark current of the TiO2 device dramatically increases while the dark current of the SnO2 device can stay the same as before since the UV illumination-induced conductivity and barrier height changes in the TiO2 layer cannot recover after removing the UV irradiation. These results indicate that the TiO2 NP layer is suitable for making a vis-NIR photodetector, while the SnO2 NP layer is a good candidate for UV-vis-NIR photodetectors. The facile solution-processed high-performance perovskite photodetector using MO NP-modified ITO is highly compatible with low cost, flexible, and large-area electronics. PPDs based on TiO2 and SnO2 NP layers show similar significantly low dark current density. Due to the UV induced conductivity and barrier height changes in the TiO2 device after UV illumination the dark current of the device increases, while the SnO2 device remains the same.![]()
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Affiliation(s)
- Chao Yan
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Yue Wang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Lijie Zhu
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Jingzan Jiang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Yufeng Hu
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Qiuhong Cui
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Zhidong Lou
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Yanbing Hou
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Feng Teng
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, P. R. China
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Li J, Bu T, Liu Y, Zhou J, Shi J, Ku Z, Peng Y, Zhong J, Cheng YB, Huang F. Enhanced Crystallinity of Low-Temperature Solution-Processed SnO 2 for Highly Reproducible Planar Perovskite Solar Cells. CHEMSUSCHEM 2018; 11:2898-2903. [PMID: 30015377 DOI: 10.1002/cssc.201801433] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Indexed: 05/26/2023]
Abstract
Low-temperature solution-processed SnO2 as a promising electron-transport material for planar perovskite solar cells (PSCs) has attracted particular attention because of its outstanding properties such as high optical transparency or high electron mobility. However, low-temperature sol-gel processes used in the synthesis are inevitably affected by the humidity of the atmosphere, which results in a wide distribution in the performance of the prepared PSCs owing to the inability to control crystallinity and defects. Herein, a highly crystalline SnO2 film is synthesized using a simple water bath post-treatment, which can remove the surface residuals of SnCl4 on the SnO2 films, which is beneficial for the interface charge transport from the perovskite to the SnO2 electron-transport layer. An improved performance of the PSCs can be easily obtained applying this treatment, giving rise to a high power conversion efficiency (PCE) of 19.17 %, much higher than that of the pristine SnO2 -based device (17.59 %). Most importantly, the reproducibility of the devices has been greatly improved, independent of the environmental humidity. Therefore, the enhanced crystallinity of SnO2 has shown promise for future commercial PSC applications: 5 cm×5 cm PSC modules have achieved a PCE of 16.16 %.
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Affiliation(s)
- Jing Li
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Tongle Bu
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Yifan Liu
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Jing Zhou
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Jielin Shi
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Zhiliang Ku
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Yong Peng
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Jie Zhong
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Yi-Bing Cheng
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Fuzhi Huang
- State Key Laboratory of Advanced technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
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Masi S, Mastria R, Scarfiello R, Carallo S, Nobile C, Gambino S, Sibillano T, Giannini C, Colella S, Listorti A, Cozzoli PD, Rizzo A. Room-temperature processed films of colloidal carved rod-shaped nanocrystals of reduced tungsten oxide as interlayers for perovskite solar cells. Phys Chem Chem Phys 2018; 20:11396-11404. [PMID: 29645032 DOI: 10.1039/c8cp00645h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thanks to their high stability, good optoelectronic and extraordinary electrochromic properties, tungsten oxides are among the most valuable yet underexploited materials for energy conversion applications. Herein, colloidal one-dimensional carved nanocrystals of reduced tungsten trioxide (WO3-x) are successfully integrated, for the first time, as a hole-transporting layer (HTL) into CH3NH3PbI3 perovskite solar cells with a planar inverted device architecture. Importantly, the use of such preformed nanocrystals guarantees the facile solution-cast-only deposition of a homogeneous WO3-x thin film at room temperature, allowing achievement of the highest power conversion efficiency ever reported for perovskite solar cells incorporating raw and un-doped tungsten oxide based HTL.
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Affiliation(s)
- Sofia Masi
- CNR NANOTEC - Institute of Nanotechnology, Polo di Nanotecnologia, c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
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5
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Huang L, Sun X, Li C, Xu J, Xu R, Du Y, Ni J, Cai H, Li J, Hu Z, Zhang J. UV-Sintered Low-Temperature Solution-Processed SnO 2 as Robust Electron Transport Layer for Efficient Planar Heterojunction Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21909-21920. [PMID: 28613825 DOI: 10.1021/acsami.7b04392] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recently, low temperature solution-processed tin oxide (SnO2) as a versatile electron transport layer (ETL) for efficient and robust planar heterojunction (PH) perovskite solar cells (PSCs) has attracted particular attention due to its outstanding properties such as high optical transparency, high electron mobility, and suitable band alignment. However, for most of the reported works, an annealing temperature of 180 °C is generally required. This temperature is reluctantly considered to be a low temperature, especially with respect to the flexible application where 180 °C is still too high for the polyethylene terephthalate flexible substrate to bear. In this contribution, low temperature (about 70 °C) UV/ozone treatment was applied to in situ synthesis of SnO2 films deposited on the fluorine-doped tin oxide substrate as ETL. This method is a facile photochemical treatment which is simple to operate and can easily eliminate the organic components. Accordingly, PH PSCs with UV-sintered SnO2 films as ETL were successfully fabricated for the first time. The device exhibited excellent photovoltaic performance as high as 16.21%, which is even higher than the value (11.49%) reported for a counterpart device with solution-processed and high temperature annealed SnO2 films as ETL. These low temperature solution-processed and UV-sintered SnO2 films are suitable for the low-cost, large yield solution process on a flexible substrate for optoelectronic devices.
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Affiliation(s)
- Like Huang
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
| | - Xiaoxiang Sun
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
| | - Chang Li
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
| | - Jie Xu
- Department of Microelectronic Science and Engineering, Ningbo University , Zhejiang 315211, China
| | - Rui Xu
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
| | - Yangyang Du
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
| | - Jian Ni
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
| | - Hongkun Cai
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
| | - Juan Li
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
| | - Ziyang Hu
- Department of Microelectronic Science and Engineering, Ningbo University , Zhejiang 315211, China
| | - Jianjun Zhang
- College of Electronic Information and Optical Engineering, Nankai University, The Tianjin Key Laboratory for Optical-Electronics Thin Film Devices and Technology , Tianjin 300071, China
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6
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Chen Z, Wei C, Li S, Diao C, Li W, Kong W, Zhang Z, Zhang W. CdS/CdSe Co-sensitized Solar Cells Based on Hierarchically Structured SnO2/TiO2 Hybrid Films. NANOSCALE RESEARCH LETTERS 2016; 11:295. [PMID: 27299650 PMCID: PMC4907964 DOI: 10.1186/s11671-016-1493-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 05/23/2016] [Indexed: 06/06/2023]
Abstract
SnO2 nanosheet-structured films were prepared on a fluorine-doped tin oxide (FTO) substrate using ZnO nanosheet as template. The as-prepared SnO2 nanosheets contained plenty of nano-voids and were generally vertical to the substrate. TiO2 nanoparticles were homogeneously deposited into the intervals between the SnO2 nanosheets to prepare a hierarchically structured SnO2/TiO2 hybrid film. The hybrid films were co-sensitized with CdS and CdSe quantum dots. The sensitized solar cells assembled with the SnO2/TiO2 hybrid film showed much higher photoelectricity conversion efficiency than the cells assembled with pure TiO2 films. The lifetime of photoinduced electron was also investigated through electrochemical impedance spectroscopy, which showed that the SnO2/TiO2 hybrid film electrode is as long as the TiO2 film electrode.
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Affiliation(s)
- Zeng Chen
- Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001, People's Republic of China
| | - Chaochao Wei
- Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001, People's Republic of China
| | - Shengjun Li
- Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001, People's Republic of China.
| | - Chunli Diao
- Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001, People's Republic of China
| | - Wei Li
- Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001, People's Republic of China
| | - Wenping Kong
- Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001, People's Republic of China
| | - Zhenlong Zhang
- Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001, People's Republic of China
| | - Weifeng Zhang
- Key Laboratory of Photovoltaic Materials of Henan Province and School of Physics and Electronics, Henan University, Kaifeng, 475001, People's Republic of China.
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7
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Senthilraja A, Krishnakumar B, Subash B, Sobral AJ, Swaminathan M, Shanthi M. Sn loaded Au–ZnO photocatalyst for the degradation of AR 18 dye under UV-A light. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2015.09.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Zhao P, Sun H, Tian L, Wang B, Liu F, Sun P, Lu G. Interfacial engineering and configuration design of bilayered photoanode consisting of macroporous tin dioxide/titanium dioxide for high performance dye-sensitized solar cells. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Wang Y, Cheng G, Zhang Y, Ke H, Zhu C. Synthesis of fluorinated SnO2 3D hierarchical structures assembled from nanosheets and their enhanced photocatalytic activity. RSC Adv 2015. [DOI: 10.1039/c5ra15179a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluorinated 3D SnO2 hierarchical structures assembled from nanosheets were synthesized via a hydrothermal treatment and present excellent photocatalytic degradation of RhB.
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Affiliation(s)
- Youzhi Wang
- Faculty of Material & Chemistry
- China University of Geosciences
- Wuhan
- P.R. China
| | - Guoe Cheng
- Faculty of Material & Chemistry
- China University of Geosciences
- Wuhan
- P.R. China
| | - Yu Zhang
- Faculty of Material & Chemistry
- China University of Geosciences
- Wuhan
- P.R. China
| | - Hanzhong Ke
- Faculty of Material & Chemistry
- China University of Geosciences
- Wuhan
- P.R. China
| | - Chunling Zhu
- Faculty of Material & Chemistry
- China University of Geosciences
- Wuhan
- P.R. China
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10
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Renard L, Brötz J, Fuess H, Gurlo A, Riedel R, Toupance T. Hybrid organotin and tin oxide-based thin films processed from alkynylorganotins: synthesis, characterization, and gas sensing properties. ACS APPLIED MATERIALS & INTERFACES 2014; 6:17093-17101. [PMID: 25192546 DOI: 10.1021/am504723t] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Hydrolysis-condensation of bis(triprop-1-ynylstannyl)butylene led to nanostructured bridged polystannoxane films yielding tin dioxide thin layers upon UV-treatment or annealing in air. According to Fourier transform infrared (FTIR) spectroscopy, contact angle measurements, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM) data, the films were composed of a network of aggregated "pseudo-particles", as calcination at 600 °C is required to form cassiterite nanocrystalline SnO2 particles. In the presence of reductive gases such as H2 and CO, these films gave rise to highly sensitive, reversible, and reproducible responses. The best selectivity toward H2 was reached at 150 °C with the hybrid thin films that do not show any response to CO at 20-200 °C. On the other hand, the SnO2 films prepared at 600 °C are more sensitive to H2 than to CO with best operating temperature in the 300-350 °C range. This organometallic approach provides an entirely new class of gas-sensing materials based on a class II organic-inorganic hybrid layer, along with a new way to include organic functionality in gas sensing metal oxides.
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Affiliation(s)
- Laetitia Renard
- University of Bordeaux , Institut des Sciences Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération, F-33405 Talence Cedex, France
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11
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Shaikh SF, Mane RS, Joo OS. Spraying distance and titanium chloride surface treatment effects on DSSC performance of electrosprayed SnO2photoanodes. RSC Adv 2014. [DOI: 10.1039/c4ra02679a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Danine A, Cojocaru L, Faure C, Olivier C, Toupance T, Campet G, Rougier A. Room Temperature UV treated WO3 thin films for electrochromic devices on paper substrate. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.028] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Li Z, Zhou Y, Sun R, Xiong Y, Xie H, Zou Z. Nanostructured SnO2 photoanode-based dye-sensitized solar cells. CHINESE SCIENCE BULLETIN 2014. [DOI: 10.1007/s11434-013-0079-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
Dye Sensitized Solar Cell (DSSC) based on metal oxide photo anode is of greater interest at the present scenario. The light harvesting capability of the photo anode is the most crucial factor in determining the efficiency of DSSC. Thus to decide on suitable photo anode to attain greater efficiency is critical confront. The wide band gap (3.6eV) and higher electron mobility (me ~ 250 cm2 V-1 S‑1) of SnO2 put together a promising material when compared to other photo electrode materials . Besides, its low sensitivity towards UV makes them more stable for a long time. This review will focus on recent progress in development of SnO2 and hybrid SnO2 based photo anode material and its allied key issues based on articles published in the last five years. A short introduction about the current energy scenario, DSSC principle and working will be presented followed by a brief description about the importance of photo anode in DSSC. Subsequently a complete review on SnO2 and hybrid SnO2 photo anode materials will be explained together with the recent year reports considering all the challenges and perspectives related to DSSC.
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15
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Li KN, Wang YF, Xu YF, Chen HY, Su CY, Kuang DB. Macroporous SnO2 synthesized via a template-assisted reflux process for efficient dye-sensitized solar cells. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5105-11. [PMID: 23692298 DOI: 10.1021/am4009727] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Macroporous SnO2 composed of small SnO2 nanoparticles with diameters around 10 nm is prepared via a reflux process. This novel structure is designed as the photoanode in dye-sensitized solar cells (DSSCs), intending to improve the light utilization efficiency with its excellent light scattering ability. Though the dye adsorption of macroporous SnO2 (14.00 × 10(-8) mol cm(-2)) is lower than that of SnO2 nanoparticles (19.24 × 10(-8) mol cm(-2)), the photovoltaic performance of the DSSCs based on the former is 4.87% compared to 4.41% for SnO2 nanoparticles, showing over 10% increment than the latter. This improvement is mainly due to the enhanced light scattering ability and charge collection efficiency of the macroporous structure, both of which contribute to a higher short current density and hence for the better power conversion efficiency. Furthermore, a double-layer structure composed of SnO2 nanoparticles (active layer) and macroporous SnO2 (scattering layer) possess both large dye adsorption (22.82 × 10(-8) mol cm(-2)) and scattering property, thus leads to a significant overall conversion efficiency of 5.78%.
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Affiliation(s)
- Ke-Nan Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, P R China
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Lin F, Nordlund D, Weng TC, Moore RG, Gillaspie DT, Dillon AC, Richards RM, Engtrakul C. Hole doping in Al-containing nickel oxide materials to improve electrochromic performance. ACS APPLIED MATERIALS & INTERFACES 2013; 5:301-309. [PMID: 23249159 DOI: 10.1021/am302097b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Electrochromic materials exhibit switchable optical properties that can find applications in various fields, including smart windows, nonemissive displays, and semiconductors. High-performing nickel oxide electrochromic materials have been realized by controlling the material composition and tuning the nanostructural morphology. Post-treatment techniques could represent efficient and cost-effective approaches for performance enhancement. Herein, we report on a post-processing ozone technique that improves the electrochromic performance of an aluminum-containing nickel oxide material in lithium-ion electrolytes. The resulting materials were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible-near-infrared (UV-vis-NIR) spectroscopy, and X-ray absorption spectroscopy (XAS). It was observed that ozone exposure increased the Ni oxidation state by introducing hole states in the NiO(6) octahedral unit. In addition, ozone exposure gives rise to higher-performing aluminum-containing nickel oxide films, relative to nickel oxide containing both Al and Li, in terms of switching kinetics, bleached-state transparency, and optical modulation. The improved performance is attributed to the decreased crystallinity and increased nickel oxidation state in aluminum-containing nickel oxide electrochromic films. The present study provides an alternative route to improve electrochromic performance for nickel oxide materials.
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Affiliation(s)
- Feng Lin
- National Renewable Energy Laboratory, Golden, Colorado 80401, USA
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17
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Karunakaran C, SakthiRaadha S, Gomathisankar P, Vinayagamoorthy P. The enhanced photocatalytic and bactericidal activities of carbon microsphere-assisted solvothermally synthesized cocoon-shaped Sn4+-doped ZnO nanoparticles. Dalton Trans 2013; 42:13855-65. [DOI: 10.1039/c3dt51058a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Swierk JR, Mallouk TE. Design and development of photoanodes for water-splitting dye-sensitized photoelectrochemical cells. Chem Soc Rev 2013; 42:2357-87. [DOI: 10.1039/c2cs35246j] [Citation(s) in RCA: 453] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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19
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Renard L, Babot O, Saadaoui H, Fuess H, Brötz J, Gurlo A, Arveux E, Klein A, Toupance T. Nanoscaled tin dioxide films processed from organotin-based hybrid materials: an organometallic route toward metal oxide gas sensors. NANOSCALE 2012; 4:6806-6813. [PMID: 23011110 DOI: 10.1039/c2nr31883k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Nanocrystalline tin dioxide (SnO(2)) ultra-thin films were obtained employing a straightforward solution-based route that involves the calcination of bridged polystannoxane films processed by the sol-gel process from bis(triprop-1-ynylstannyl)alkylene and -arylene precursors. These films have been thoroughly characterized by FTIR, contact angle measurements, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force (AFM) and scanning electron (SEM) microscopies. Annealing at a high temperature gave 30-35 nm thick cassiterite SnO(2) films with a mean crystallite size ranging from 4 to 7 nm depending on the nature of the organic linker in the distannylated compound used as a precursor. In the presence of H(2) and CO gases, these layers led to highly sensitive, reversible and reproducible responses. The sensing properties were discussed in regard to the crystallinity and porosity of the sensing body that can be tuned by the nature of the precursor employed. Organometallic chemistry combined with the sol-gel process therefore offers new possibilities toward metal oxide nanostructures for the reproducible and sensitive detection of combustible and toxic gases.
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Affiliation(s)
- Laetitia Renard
- University of Bordeaux, Institut des Sciences Moléculaires, ISM UMR 5255 CNRS, C2M Group, 33405 Talence Cédex, France
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Wu M, Wang Y, Lin X, Hagfeldt A, Ma T. An Autocatalytic Factor in the Loss of Efficiency in Dye-Sensitized Solar Cells. ChemCatChem 2012. [DOI: 10.1002/cctc.201200061] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Uddin MT, Nicolas Y, Olivier C, Toupance T, Servant L, Müller MM, Kleebe HJ, Ziegler J, Jaegermann W. Nanostructured SnO2–ZnO Heterojunction Photocatalysts Showing Enhanced Photocatalytic Activity for the Degradation of Organic Dyes. Inorg Chem 2012; 51:7764-73. [DOI: 10.1021/ic300794j] [Citation(s) in RCA: 434] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Md. Tamez Uddin
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Yohann Nicolas
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Céline Olivier
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Thierry Toupance
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Laurent Servant
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Mathis M. Müller
- Institute of Material Science, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
| | - Hans-Joachim Kleebe
- Institute of Material Science, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
| | - Jürgen Ziegler
- Institute of Material Science, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
| | - Wolfram Jaegermann
- Institute of Material Science, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
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22
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Poudel P, Qiao Q. One dimensional nanostructure/nanoparticle composites as photoanodes for dye-sensitized solar cells. NANOSCALE 2012; 4:2826-38. [PMID: 22447033 DOI: 10.1039/c2nr30347g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Dye-sensitized solar cells (DSCs) show potential as a low cost alternative to silicon solar cells. Power conversion efficiencies exceeding 12% have been achieved for DSCs. Typical DSCs are based on TiO(2) nanoparticle photoanodes, which have numerous grain boundaries, surface defects and trap states as electrons transport from one particle to the other. Such defects and trap states increase back charge transfer (charge recombination) from the photoanode to electrolyte. One dimensional (1D) nanostructures such as nanofibers, nanorods, nanowires, and nanotubes can offer direct and fast electron transport to the electron collecting electrode. However, these 1D nanostructures have a major disadvantage of having insufficient surface area and inefficient dye attachment. To solve this challenge, mixtures of TiO(2) nanoparticles and 1D nanostructures (e.g. nanofibers, nanorods, nanowires, and nanotubes) are used to take advantage of the large surface area of nanoparticles and efficient charge transport of 1D nanostructures. In this article, we review the recent developments in using mixtures of 1D nanostructures and nanoparticles as photoanodes for efficient DSCs. Various randomly oriented and vertically aligned 1D nanostructures and their composites with nanoparticles are discussed. Future increase of efficiency in DSCs using 1D nanostructure/nanoparticle composites will rely on the optimization of diameters of 1D nanostructures, control of ratios of 1D nanostructures and nanoparticles, increase of crystallinity, and reduction of surface defects on the 1D nanostructures. This work will provide guidance for designing and growing appropriate 1D nanostructures, and combining them with nanoparticles at an optimal ratio for efficient DSCs.
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Affiliation(s)
- Prashant Poudel
- Center for Advanced Photovoltaics, Department of Electrical Engineering and Computer Sciences, South Dakota State University, Brookings, South Dakota, USA
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Yang N, Yuan Q, Zhai J, Wei T, Wang D, Jiang L. Enhanced light harvesting in plasmonic dye-sensitized solar cells by using a topologically ordered gold light-trapping layer. CHEMSUSCHEM 2012; 5:572-576. [PMID: 22407989 DOI: 10.1002/cssc.201200024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Indexed: 05/31/2023]
Abstract
Dye-sensitized solar cells (DSSCs) are promising low-cost, high-efficiency devices with low environmental impact. One of the important methods to improve their efficiencies involves increasing the light-harvesting efficiency. Earlier work has focused on varying the morphology of the photoanode. With such a hierarchical structured photoanode in hand, we modify herein the structure of the counter electrode to enhance the optical path length through the plasmonic and reflecttion effects. With the introduced topological gold layer, the photocurrent and efficiency are increased by 16 % and 18 %, respectively, due to the increased light collection. Besides, this effect is effective at both high and low levels of solar irradiation.
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Affiliation(s)
- Nailiang Yang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, PR China
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Yin X, Xue Z, Wang L, Cheng Y, Liu B. High-performance plastic dye-sensitized solar cells based on low-cost commercial P25 TiO2 and organic dye. ACS APPLIED MATERIALS & INTERFACES 2012; 4:1709-1715. [PMID: 22324725 DOI: 10.1021/am201842n] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
High-performance plastic dye-sensitized solar cells (DSCs) based on low-cost commercial Degussa P25 TiO(2) and organic indoline dye D149 have been fabricated using electrophoretic deposition (EPD) with compression post-treatment at room temperature. The pressed EPD electrode outperformed the sintered EPD electrode and as-prepared EPD electrode in short-circuit current density and power conversion efficiency. About 150% and 180% enhancement in power conversion efficiency have been achieved in DSC devices with sintering and compression post-treatment as compared to the as-prepared electrode, respectively. Several characterizations including intensity modulated photocurrent spectroscopy, incident photon-to-electron conversion efficiency and electrochemical impedance spectra have been employed to reveal the nature of improvement with post-treatment. Experimental results indicate that the sintering and compression post-treatment are beneficial to improve the electron transport and thus lead to the enhancement of photocurrent and power conversion efficiency. In addition, the compression post-treatment is more efficient than sintering post-treatment in improving interparticle connection in the as-prepared EPD electrode. Under optimized conditions, the conversion efficiency of plastic devices with D149-sensitized P25 TiO(2) photoanode has reached 5.76% under illumination of AM 1.5G (100 mW cm(-2)). This study demonstrates that the EPD combined with compression post-treatment provides a way to fabricate highly efficient plastic photovoltaic devices.
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Affiliation(s)
- Xiong Yin
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576
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25
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Agarkar SA, Dhas VV, Muduli S, Ogale SB. Dye sensitized solar cell (DSSC) by a novel fully room temperature process: a solar paint for smart windows and flexible substrates. RSC Adv 2012. [DOI: 10.1039/c2ra22182a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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