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Yu X, Li L, Zhao Y, Wang X, Wang Y, Shen W, Zhang X, Zhang Y, Tang J, Inganäs O. Organic Eu3+-complex-anchored porous diatomite channels enable UV protection and down conversion in hybrid material. Sci Technol Adv Mater 2020; 21:726-736. [PMID: 33177954 PMCID: PMC7594857 DOI: 10.1080/14686996.2020.1799693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/20/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
The organic Eu3+-complex [Eu(TTA)3Phen] has been incorporated into the channels of surface-modified frustules from diatoms as a key material to absorb and convert UV-photons to visible luminescence. Systematic investigation results indicate that the organic Eu3+-complex encapsulated in the functionalized diatomite channels exhibits enhanced luminescence and longer lifetime, owning to the Eu(TTA)3Phen complex interacting with its surrounding silylating agents. The organic Eu3+-complex-anchored porous diatomite hybrid luminescent material was compounded with polyethylene terephthalate (PET) by using a mini-twin screw extruder to prepare a self-supporting film of the hybrid material. Besides, the UV absorption properties of the composite films were investigated. These films will potentially be related to the UV protection of photovoltaic devices.
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Affiliation(s)
- Xiaoshuang Yu
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Lili Li
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Yue Zhao
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Xinzhi Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Yao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Wenfei Shen
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Xiaolin Zhang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Yanying Zhang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Olle Inganäs
- Biomolecular and Organic Electronics, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden
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Abstract
Triboelectric nanogenerators (TENGs) that enable the conversion of a given mechanical energy into electrical energy at high efficiency have been very important in practice. Since the given mechanical energy is involuntarily converted to secondary energy sources (light, heat, and sound during triboelectrification), the significant amount of energy being converted is lost. Various studies have thus been continuously carried out to overcome this issue. Since the first TENGs found in 2012, various developments in TENGs have been made: (1) the mechanical-electrical energy conversion characteristics of potential organic/inorganic material groups have been introduced, (2) the integration into the device structure considering the diversity of mechanical energy, and (3) user friendly and industrial application platforms have been aggressively studied. Despite the remarkable progress and improvement of TENGs, their mechanical-electrical conversion efficiency is still quite low. We therefore need to discover and develop materials that can be converted to improve efficiency. Here, we outline the recent progress made in a group of high polarity triboelectric materials that exploit surface charge density and charge transfer properties. We also review the recent boosting powering TENGs. The aim of this work is to provide insight into the future direction and strategies for highly enhanced powering TENGs through material research.
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Affiliation(s)
- Hong-Joon Yoon
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon Gyeonggi-do, Republic of Korea
| | - Sung Soo Kwak
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon Gyeonggi-do, Republic of Korea
| | - Seong Min Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon Gyeonggi-do, Republic of Korea
- CONTACT Seong Min Kim
| | - Sang-Woo Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon Gyeonggi-do, Republic of Korea
- Sang-Woo Kim School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
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Yan R, Xie W, Balke B, Chen G, Weidenkaff A. Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution. Sci Technol Adv Mater 2020; 21:122-130. [PMID: 32165991 PMCID: PMC7054941 DOI: 10.1080/14686996.2020.1726715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 02/04/2020] [Accepted: 02/04/2020] [Indexed: 06/10/2023]
Abstract
N-type half-Heusler NbCoSn is a promising thermoelectric material due to favourable electronic properties. It has attracted much attention for thermoelectric applications while the desired p-type NbCoSn counterpart shows poor thermoelectric performance. In this work, p-type NbCoSn has been obtained using Sc substitution at the Nb site, and their thermoelectric properties were investigated. Of all samples, Nb0.95Sc0.05CoSn compound shows a maximum power factor of 0.54 mW/mK2 which is the highest among the previously reported values of p-type NbCoSn. With the suppression of thermal conductivity, p-type Nb0.95Sc0.05CoSn compound shows the highest measured figure of merit ZT = 0.13 at 879 K.
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Affiliation(s)
- Ruijuan Yan
- Department of Materials Science, Technical University of Darmstadt, Darmstadt, Germany
| | - Wenjie Xie
- Department of Materials Science, Technical University of Darmstadt, Darmstadt, Germany
| | - Benjamin Balke
- Fraunhofer Research Institution for Materials Recycling and Resource Strategies IWKS, Alzenau, Germany
| | - Guoxing Chen
- Department of Materials Science, Technical University of Darmstadt, Darmstadt, Germany
| | - Anke Weidenkaff
- Department of Materials Science, Technical University of Darmstadt, Darmstadt, Germany
- Fraunhofer Research Institution for Materials Recycling and Resource Strategies IWKS, Alzenau, Germany
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