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Duan Y, Yu R, Zhang H, Yang W, Xie W, Huang Y, Yin Z. Programmable, High-resolution Printing of Spatially Graded Perovskites for Multispectral Photodetectors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313946. [PMID: 38582876 DOI: 10.1002/adma.202313946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Micro/nanostructured perovskites with spatially graded compositions and bandgaps are promising in filter-free, chip-level multispectral, and hyperspectral detection. However, achieving high-resolution patterning of perovskites with controlled graded compositions is challenging. Here, a programmable mixed electrohydrodynamic printing (M-ePrinting) technique is presented to realize the one-step direct-printing of arbitrary spatially graded perovskite micro/nanopatterns for the first time. M-ePrinting enables in situ mixing and ejection of solutions with controlled composition/bandgap by programmatically varying driving voltage applied to a multichannel nozzle. Composition can be graded over a single dot, line or complex pattern, and the printed feature size is down to 1 µm, which is the highest printing resolution of graded patterns to the knowledge. Photodetectors based on micro/nanostructured perovskites with halide ions gradually varying from Br to I are constructed, which successfully achieve multispectral detection and full-color imaging, with a high detectivity and responsivity of 3.27 × 1015 Jones and 69.88 A W-1, respectively. The presented method provides a versatile and competitive approach for such miniaturized bandgap-tunable perovskite spectrometer platforms and artificial vision systems, and also opens new avenues for the digital fabrication of composition-programmable structures.
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Affiliation(s)
- Yongqing Duan
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Rui Yu
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hanyuan Zhang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Weili Yang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wenshuo Xie
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - YongAn Huang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhouping Yin
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Optics Valley Laboratory, Hubei, 430074, China
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2
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Chai Y, Jiang J, Wu L, Sun Z, Fang S, Shen L, Yao K. Surface Engineering of Perovskite Single Crystals by Atomic Layer Deposited Tin Oxide for Optical Communication. J Phys Chem Lett 2024; 15:3859-3865. [PMID: 38557200 DOI: 10.1021/acs.jpclett.4c00547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Perovskite single crystals with excellent physical properties have broad prospects in the field of optoelectronics. However, the presence of dangling bonds, surface dislocations, and chemical impurities results in high surface defect density and sensitivity to humidity. Unfortunately, there are relatively few surface engineering strategies for single perovskite single crystals. We present a strategy utilizing atomic layer deposited SnOx to passivate surface defects in perovskite single crystals. The photodetector prepared based on the modified FAPbBr3 single crystals exhibits a low dark current of 1.89 × 10-9 A at a 5 V bias, close to 4 times lower with respect to the pristine device, a high detectivity of 2.3 × 1010 jones, and a fast response time of 27 μs. Moreover, the photodetectors feature long-term operational stability because the presence of a dense SnOx capping layer hinders the ingress of moisture and diffusion of ions. We further demonstrate the promise of our perovskite single crystal detectors for real-time subaqueous optical communication.
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Affiliation(s)
- Yalin Chai
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Jizhong Jiang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, International Center of Future Science, Jilin University, Changchun 130012, China
| | - Long Wu
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Zaicheng Sun
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, International Center of Future Science, Jilin University, Changchun 130012, China
| | - Shanshan Fang
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Liang Shen
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, International Center of Future Science, Jilin University, Changchun 130012, China
| | - Kai Yao
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
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3
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Cheng Y, Guo X, Shi Y, Pan L. Recent advance of high-quality perovskite nanostructure and its application in flexible photodetectors. NANOTECHNOLOGY 2024; 35:242001. [PMID: 38467065 DOI: 10.1088/1361-6528/ad3251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 03/11/2024] [Indexed: 03/13/2024]
Abstract
Flexible photodetectors (PDs) have garnered increasing attention for their potential applications in diverse fields, including weather monitoring, smart robotics, smart textiles, electronic eyes, wearable biomedical monitoring devices, and so on. Notably, perovskite nanostructures have emerged as a promising material for flexible PDs due to their distinctive features, such as a large optical absorption coefficient, tunable band gap, extended photoluminescence decay time, high carrier mobility, low defect density, long exciton diffusion lengths, strong self-trapped effect, good mechanical flexibility, and facile synthesis methods. In this review, we first introduce various synthesis methods for perovskite nanostructures and elucidate their corresponding optical and electrical properties, encompassing quantum dots, nanocrystals, nanowires, nanobelts, nanosheets, single-crystal thin films, polycrystalline thin films, and nanostructured arrays. Furthermore, the working mechanism and key performance parameters of optoelectronic devices are summarized. The review also systematically compiles recent advancements in flexible PDs based on various nanostructured perovskites. Finally, we present the current challenges and prospects for the development of perovskite nanostructures-based flexible PDs.
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Affiliation(s)
- Yan Cheng
- The Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Xin Guo
- The Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Yi Shi
- The Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Lijia Pan
- The Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, People's Republic of China
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Teng J, Chen Y, Huang C, Yang M, Zhu B, Liu WJ, Ding SJ, Wu X. Graded-Band-Gap Zinc-Tin Oxide Thin-Film Transistors with a Vertically Stacked Structure for Wavelength-Selective Photodetection. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9060-9067. [PMID: 38336611 DOI: 10.1021/acsami.3c18737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
Filter-free wavelength-selective photodetectors have garnered significant attention due to the growing demand for smart sensors, artificial intelligence, the Internet of Everything, and so forth. However, the challenges associated with large-scale preparation and compatibility with complementary metal-oxide-semiconductor (CMOS) technology limit their wide-ranging applications. In this work, we address the challenges by constructing vertically stacked graded-band-gap zinc-tin oxide (ZTO) thin-film transistors (TFTs) specifically designed for wavelength-selective photodetection. The ZTO thin films with various band gaps are fabricated via atomic layer deposition (ALD) by varying the ALD cycle ratios of zinc oxide (ZnO) and SnO2. The ZTO film with a small Sn ratio exhibits a decreased band gap, and the resultant TFT shows a degraded performance, which can be attributed to the Sn4+ dopant introducing a series of deep-state energy levels in the ZnO band gap. As the ratio of Sn increases further, the band gap of the ZTO also increases, and the mobility of the ZTO TFT increases up to 30 cm2/V s, with a positive shift of the threshold voltage. The photodetectors employing ZTO thin films with distinct band gaps show different spectral responsivities. Then, vertically stacked ZTO (S-ZTO) thin films, with gradient band gaps increasing from the bottom to the top, have been successfully deposited using consecutive ALD technology. The S-ZTO TFT shows decent performance with a mobility of 18.4 cm2/V s, a threshold voltage of 0.5 V, an on-off current ratio higher than 107, and excellent stability under ambient conditions. The resultant S-ZTO TFT also exhibits obviously distinct photoresponses to light at different wavelength ranges. Furthermore, a device array of S-ZTO TFTs demonstrates color imaging by precisely reconstructing patterned illuminations with different wavelengths. Therefore, this work provides CMOS-compatible and structure-compact wavelength-selective photodetectors for advanced and integrable optoelectronic applications.
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Affiliation(s)
- Jiahui Teng
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Yantao Chen
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Chunming Huang
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Ming Yang
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Bao Zhu
- School of Microelectronics, Fudan University, Shanghai 200433, China
- Jiashan Fudan Institute, Jiaxing, Zhejiang Province 314100, China
| | - Wen-Jun Liu
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Shi-Jin Ding
- School of Microelectronics, Fudan University, Shanghai 200433, China
- Jiashan Fudan Institute, Jiaxing, Zhejiang Province 314100, China
| | - Xiaohan Wu
- School of Microelectronics, Fudan University, Shanghai 200433, China
- Jiashan Fudan Institute, Jiaxing, Zhejiang Province 314100, China
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5
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Li DY, Kang HY, Liu YH, Zhang J, Yue CY, Yan D, Lei XW. A 0D hybrid lead-free halide with near-unity photoluminescence quantum yield toward multifunctional optoelectronic applications. Chem Sci 2024; 15:953-963. [PMID: 38239673 PMCID: PMC10793591 DOI: 10.1039/d3sc05245a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/04/2023] [Indexed: 01/22/2024] Open
Abstract
Zero-dimensional (0D) hybrid metal halides have emerged as highly efficient luminescent materials, but integrated multifunction in a structural platform remains a significant challenge. Herein, a new hybrid 0D indium halide of (Im-BDMPA)InCl6·H2O was designed as a highly efficient luminescent emitter and X-ray scintillator toward multiple optoelectronic applications. Specifically, it displays strong broadband yellow light emission with near-unity photoluminescence quantum yield (PLQY) through Sb3+ doping, acting as a down-conversion phosphor to fabricate high-performance white light emitting diodes (WLEDs). Benefiting from the high PLQY and negligible self-absorption characteristics, this halide exhibits extraordinary X-ray scintillation performance with a high light yield of 55 320 photons per MeV, which represents a new scintillator in 0D hybrid indium halides. Further combined merits of a low detection limit (0.0853 μGyair s-1), ultra-high spatial resolution of 17.25 lp per mm and negligible afterglow time (0.48 ms) demonstrate its excellent application prospects in X-ray imaging. In addition, this 0D halide also exhibits reversible luminescence off-on switching toward tribromomethane (TBM) but fails in any other organic solvents with an ultra-low detection limit of 0.1 ppm, acting as a perfect real-time fluorescent probe to detect TBM with ultrahigh sensitivity, selectivity and repeatability. Therefore, this work highlights the multiple optoelectronic applications of 0D hybrid lead-free halides in white LEDs, X-ray scintillation, fluorescence sensors, etc.
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Affiliation(s)
- Dong-Yang Li
- School of Chemistry, Chemical Engineer and Materials, Jining University Qufu Shandong 273155 P. R. China
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu Shandong 273165 P. R. China
| | - Huai-Yuan Kang
- School of Chemistry, Chemical Engineer and Materials, Jining University Qufu Shandong 273155 P. R. China
| | - Yu-Hang Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu Shandong 273165 P. R. China
| | - Jie Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu Shandong 273165 P. R. China
| | - Cheng-Yang Yue
- School of Chemistry, Chemical Engineer and Materials, Jining University Qufu Shandong 273155 P. R. China
| | - Dongpeng Yan
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Key Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University Beijing 100875 P. R. China
| | - Xiao-Wu Lei
- School of Chemistry, Chemical Engineer and Materials, Jining University Qufu Shandong 273155 P. R. China
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6
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Zhou Y, Sun H, Guo L, Min L, Wang M, Li L. Emerging Computational Micro-Spectrometers - From Complex System Integration to Simple In Situ Modulation. SMALL METHODS 2023; 7:e2300479. [PMID: 37653642 DOI: 10.1002/smtd.202300479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/04/2023] [Indexed: 09/02/2023]
Abstract
The extensive applications of spectrum analysis across various fields have rendered the traditional desktop spectrometers unable to meet the market demand for portability and instantaneity. Reducing the size of spectrometers has become a topic of interest. Based on this trend, a novel type of computational spectrometer is developed and has been widely studied owing to its unique features. Such spectrometers do not need to integrate complex mechanical or optical structures, and most of them can achieve spectrum analysis by the properties of the material itself combines with the reconstruction algorithm. Impressively, a single-detector computational spectrometer has recently been successfully realized based on in situ modulation of material properties. This not only enables the further miniaturization of the device, but also means that the footprint-resolution limitation which has always existed in the field of hyperspectral imaging has been broken, opening a new era of image analysis. This review summarizes the classifications and principles of various spectrometers, compares the spectrum resolution performances of different types of spectrometers, and highlights the progress of computational spectrometers, especially the revolutionary single-detector spectrometer. It is expected that this review will provide a positive impact on expanding the boundary of spectrum analysis and move hyperspectral imaging forward.
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Affiliation(s)
- Yicheng Zhou
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Haoxuan Sun
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Linqi Guo
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Liangliang Min
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Meng Wang
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
| | - Liang Li
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou, 215006, P. R. China
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7
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Zheng K, Yang L, Liu H, Chen X, Li X, Lu M. Flexible Stacked Perovskite Photodetectors for High-Efficiency Multicolor Fluorescence Detection. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40799-40808. [PMID: 37585675 DOI: 10.1021/acsami.3c06793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
A flexible, multicolor detector based on stacked perovskite layers with graded band gaps was presented. Different perovskite layers generate a series of photocurrents corresponding to light intensities at different wavelengths. Experimentally, the flexible detector demonstrated acceptable long-term stability and temperature stability in the bending state. To demonstrate the advantages of the flexible multicolor detector in biological applications, a tubular-shaped multicolor fluorescence detector that embraces the sample cell was constructed. As a result, the detection limits of three kinds of CdTe quantum dots (QDs) with central wavelengths of 545, 625, and 730 nm were 0.52, 0.85, and 0.43 nM, respectively, which was significantly improved by more than 10 times compared to those of planar detectors. Additionally, the detector was able to detect three kinds of QDs simultaneously in a mixed solution, and the relative deviation was smaller than 10% compared to the preset concentration. These results demonstrate that the flexible stacked perovskite detector and the tubular-shaped detection configuration hold promise for the simultaneous fluorescent detection of multiple biomolecules.
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Affiliation(s)
- Kai Zheng
- School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Longkai Yang
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
| | - Haowei Liu
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
| | - Xinyi Chen
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
| | - Xin Li
- School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Miao Lu
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
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8
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Tang Y, Jin P, Wang Y, Li D, Chen Y, Ran P, Fan W, Liang K, Ren H, Xu X, Wang R, Yang YM, Zhu B. Enabling low-drift flexible perovskite photodetectors by electrical modulation for wearable health monitoring and weak light imaging. Nat Commun 2023; 14:4961. [PMID: 37587158 PMCID: PMC10432415 DOI: 10.1038/s41467-023-40711-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 08/07/2023] [Indexed: 08/18/2023] Open
Abstract
Metal halide perovskites are promising for next-generation flexible photodetectors owing to their low-temperature solution processability, mechanical flexibility, and excellent photoelectric properties. However, the defects and notorious ion migration in polycrystalline metal halide perovskites often lead to high and unstable dark current, thus deteriorating their detection limit and long-term operations. Here, we propose an electrical field modulation strategy to significantly reduce the dark current of metal halide perovskites-based flexible photodetector more than 1000 times (from ~5 nA to ~5 pA). Meanwhile, ion migration in metal halide perovskites is effectively suppressed, and the metal halide perovskites-based flexible photodetector shows a long-term continuous operational stability (~8000 s) with low signal drift (~4.2 × 10-4 pA per second) and ultralow dark current drift (~1.3 × 10-5 pA per second). Benefitting from the electrical modulation strategy, a high signal-to-noise ratio wearable photoplethysmography sensor and an active-matrix photodetector array for weak light imaging are successfully demonstrated. This work offers a universal strategy to improve the performance of metal halide perovskites for wearable flexible photodetector and image sensor applications.
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Affiliation(s)
- Yingjie Tang
- College of Information Science and Electronic Engineering, Zhejiang University, 310027, Hangzhou, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China
| | - Peng Jin
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, 310007, Hangzhou, Zhejiang, China
| | - Yan Wang
- College of Information Science and Electronic Engineering, Zhejiang University, 310027, Hangzhou, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China
| | - Dingwei Li
- College of Information Science and Electronic Engineering, Zhejiang University, 310027, Hangzhou, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China
| | - Yitong Chen
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China
- School of Materials Science and Engineering, Zhejiang University, 310027, Hangzhou, China
| | - Peng Ran
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, 310007, Hangzhou, Zhejiang, China
| | - Wei Fan
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China
- School of Materials Science and Engineering, Zhejiang University, 310027, Hangzhou, China
| | - Kun Liang
- College of Information Science and Electronic Engineering, Zhejiang University, 310027, Hangzhou, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China
| | - Huihui Ren
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China
- School of Materials Science and Engineering, Zhejiang University, 310027, Hangzhou, China
| | - Xuehui Xu
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, 310007, Hangzhou, Zhejiang, China
| | - Rui Wang
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 310024, Hangzhou, China
| | - Yang Michael Yang
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, 310007, Hangzhou, Zhejiang, China.
| | - Bowen Zhu
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 310024, Hangzhou, China.
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 310024, Hangzhou, China.
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9
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Wu W, Lu H, Han X, Wang C, Xu Z, Han ST, Pan C. Recent Progress on Wavelength-Selective Perovskite Photodetectors for Image Sensing. SMALL METHODS 2023; 7:e2201499. [PMID: 36811238 DOI: 10.1002/smtd.202201499] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/18/2023] [Indexed: 06/19/2023]
Abstract
Spectral sensing plays a crucial part in imaging technologies, optical communication, and other fields. However, complicated optical elements, such as prisms, interferometric filters, and diffraction grating, are required for commercial multispectral detectors, which hampers their advance toward miniaturization and integration. In recent years, metal halide perovskites have been emerging for optical-component-free wavelength-selective photodetectors (PDs) because of their continuously tunable bandgap, fascinating optoelectronic properties, and simple preparation processes. In this review, recent advances in wavelength-selective perovskite PDs, including narrowband PDs, dual-band PDs, multispectral-recognizable PDs, and X-ray PDs, are highlighted, with an emphasis on device structure designs, working mechanisms, and optoelectronic performances. Meanwhile, the applications of wavelength-selective PDs in image sensing for single-/dual-color imaging, full-color imaging, and X-ray imaging are introduced. Finally, the remaining challenges and perspectives in this emerging field are presented.
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Affiliation(s)
- Wenqiang Wu
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
| | - Hui Lu
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
| | - Xun Han
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Chunfeng Wang
- College of Materials Science and Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zhangsheng Xu
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
| | - Su-Ting Han
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Caofeng Pan
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
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10
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Huang C, Chen Y, Wang XL, Zhu B, Liu WJ, Ding SJ, Wu X. Flexible Microspectrometers Based on Printed Perovskite Pixels with Graded Bandgaps. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7129-7136. [PMID: 36710447 DOI: 10.1021/acsami.2c20752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Miniaturized spectrometers have attracted much attention due to their capability to detect spectral information within a small size. However, such technology still faces challenges including large-scale preparation and performance repeatability. In this work, we overcome these challenges by demonstrating a microspectrometer constructed with a series of pixelized graded-bandgap perovskite photodetectors fabricated with inkjet printing. High-quality perovskite films with minimal pinholes and large grains are deposited by optimizing printing conditions including substrate temperature and surface modification. The resulting perovskite photodetectors show decent photosensing performance, and the different photodetectors based on perovskite films with different bandgaps exhibit various spectral responsivities with different cutoff wavelength edges. Microspectrometers are then constructed with the array of the pixelized graded-bandgap perovskite photodetectors, and incident spectra are algorithmically reconstructed by combining their output currents. The reconstruction performance of the miniaturized spectrometer is evaluated by comparing the results to the spectral curve measured with a commercial bulky spectrometer, indicating a reliable spectral reconstruction with a resolution of around 10 nm. More significantly, the miniaturized spectrometers are successfully fabricated on polymer substrates, and they demonstrate excellent mechanical flexibility. Therefore, this work provides a flexible miniaturized spectrometer with large-scale fabricability, which is promising for emerging applications including wearable devices, hyperspectral imaging, and internet of things.
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Affiliation(s)
- Chunming Huang
- School of Microelectronics, Fudan University, Shanghai200433, China
| | - Yantao Chen
- School of Microelectronics, Fudan University, Shanghai200433, China
| | - Xiao-Lin Wang
- School of Microelectronics, Fudan University, Shanghai200433, China
| | - Bao Zhu
- School of Microelectronics, Fudan University, Shanghai200433, China
| | - Wen-Jun Liu
- School of Microelectronics, Fudan University, Shanghai200433, China
| | - Shi-Jin Ding
- School of Microelectronics, Fudan University, Shanghai200433, China
- Jiashan Fudan Institute, Jiaxing, Zhejiang Province314100, China
| | - Xiaohan Wu
- School of Microelectronics, Fudan University, Shanghai200433, China
- Hubei Yangtze Memory Laboratories, Wuhan430205, China
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Zhang X, Liu X, Sun B, Ye H, He C, Kong L, Li G, Liu Z, Liao G. Ultrafast, Self-Powered, and Charge-Transport-Layer-Free Ultraviolet Photodetectors Based on Sequentially Vacuum-Evaporated Lead-Free Cs 2AgBiBr 6 Thin Films. ACS APPLIED MATERIALS & INTERFACES 2021; 13:35949-35960. [PMID: 34261312 DOI: 10.1021/acsami.1c08613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Researchers have focused on perovskite-based ultraviolet photodetectors due to their significance in fundamental scientific and practical applications. However, toxicity and instability hold back their mass production and commercialization. The lead-free Cs2AgBiBr6 double perovskite, promised to be an alternative, is fabricated mostly by spin coating, which restricts the practical application in high-resolution image sensors. Herein, we demonstrate a sequential vacuum evaporation method for the fabrication of the Cs2AgBiBr6 film. A self-powered ultraviolet photodetector based on the evaporated Cs2AgBiBr6 thin film is further constructed without any carrier-transport layers, for the first time. The best-performing device has a high on/off ratio of 6.6 × 103, and its response time is fast, less than 6.13 μs. Moreover, the as-prepared devices exhibit salient stability under harsh operational conditions (continuous illumination, high temperature, and humidity). In addition, the pixelated image sensor containing a 25 × 25 Cs2AgBiBr6 photodetector array achieves a proof-of-concept special pattern recognition. Our work paves the way for new-generation ultraviolet image sensors composed of environmentally friendly and high-performance perovskite photodetector arrays.
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Affiliation(s)
- Xuning Zhang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xingyue Liu
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Bo Sun
- School of Aeronautics and Astronautics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Haibo Ye
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Chunhua He
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Lingxian Kong
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Guangliang Li
- School of Aeronautics and Astronautics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhiyong Liu
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Guanglan Liao
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518057, China
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