Aligned Single‐Crystalline Perovskite Microwire Arrays for High‐Performance Flexible Image Sensors with Long‐Term Stability

Deng, Wei; Zhang, Xiujuan; Huang, Liming; Xu, Xiuzhen; Wang, Liang; Wang, Jincheng; Shang, Qixun; Lee, Shuit‐Tong; Jie, Jiansheng

doi:10.1002/adma.201505126

Cited by 382 publications

(392 citation statements)

References 31 publications

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“…ZnO NW‐based photodetectors have great potential for flexible photodetectors54, 55 which are important functional components for light‐weight, flexible optoelectronics,56, 57 however, high‐performance flexible NW photodetectors with UV to NIR response are still need to be developed 58. Benefiting from the flexibility of mica sheets and heterogeneous ZnO/PbS QDs thin film, flexible photodetectors based on ZnO/PbS QDs heterostructure were fabricated on mica by traditional device fabrication techniques as shown in the Experimental Section.…”

Section: Resultsmentioning

confidence: 99%

An Enhanced UV–Vis–NIR an d Flexible Photodetector Based on Electrospun ZnO Nanowire Array/PbS Quantum Dots Film Heterostructure

et al. 2016

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ZnO nanostructure‐based photodetectors have a wide applications in many aspects, however, the response range of which are mainly restricted in the UV region dictated by its bandgap. Herein, UV–vis–NIR sensitive ZnO photodetectors consisting of ZnO nanowires (NW) array/PbS quantum dots (QDs) heterostructures are fabricated through modified electrospining method and an exchanging process. Besides wider response region compared to pure ZnO NWs based photodetectors, the heterostructures based photodetectors have faster response and recovery speed in UV range. Moreover, such photodetectors demonstrate good flexibility as well, which maintain almost constant performances under extreme (up to 180°) and repeat (up to 200 cycles) bending conditions in UV–vis–NIR range. Finally, this strategy is further verified on other kinds of 1D nanowires and 0D QDs, and similar enhancement on the performance of corresponding photodetecetors can be acquired, evidencing the universality of this strategy.

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Section: Resultsmentioning

confidence: 99%

An Enhanced UV–Vis–NIR an d Flexible Photodetector Based on Electrospun ZnO Nanowire Array/PbS Quantum Dots Film Heterostructure

et al. 2016

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“…Printable photodetectors, including phototransistors and photodiodes, have potential for the creation of low-cost but high-performance image sensors on flexible substrates [4][5][6][7][8][9][10][11][12] , and could open new methods of imaging not possible with rigid substrates 13,14 . Phototransistors produce photoconductive gain, which is not seen in photodiodes, and results in external quantum efficiencies (EQEs) well over 100% (refs 15-20).…”

Section: Pierre * Abhinav Gaikwad and Ana Claudia Ariasmentioning

confidence: 99%

Charge-integrating organic heterojunction phototransistors for wide-dynamic-range image sensors

2017

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“…All of these results are consistent with conventional photodetectors and demonstrate a good ohmic contact between the perovskite and gold electrodes. [45][46][47] Responsivity (R) and external quantum efficiency (EQE) (as illustrated in Figure S12) are widely used to characterize the efficiency of a photodetector according to the known…”

Section: Photoelectric Characteristics Of the Perovskite Photodetectomentioning

confidence: 99%

Chip‐Scale Fabrication of Uniform Lead Halide Perovskites Microlaser Array and Photodetector Array

Duan

Wang

et al. 2017

Laser & Photonics Reviews

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Lead halide perovskites have recently attracted attention due to their outstanding photoelectric properties. Hence, perovskite-based optoelectronic devices are widely studied. Herein, a simple solution-based one-step anti-solvent method to produce well-controlled and uniform CH 3 NH 3 PbBr 3 -based micro-devices is reported. It is confirmed that the size and mode numbers of the self-assembled microdisk cavities can be well controlled by modifying the size of the SiO 2 microdisks on the substrate or changing the concentration of the perovskite precursor. With this simple and robust method, the produced CH 3 NH 3 PbBr 3 microdisk arrays are extremely uniform in both their size distribution and emission spectra. Moreover, a perovskite photodetector array with fast rise (<8.3 ms) and decay (<8.3 ms) times was fabricated by periodically patterning the substrate. Based on the high controllability and high reproducibility of the patterned CH 3 NH 3 PbBr 3 microdisk arrays, this cost-effective and mass-manufacturable approach significantly increases the production yield of lead halide perovskite microdevices and boosts their ability to be used in practical applications.

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Aligned Single‐Crystalline Perovskite Microwire Arrays for High‐Performance Flexible Image Sensors with Long‐Term Stability

Cited by 382 publications

References 31 publications

An Enhanced UV–Vis–NIR an d Flexible Photodetector Based on Electrospun ZnO Nanowire Array/PbS Quantum Dots Film Heterostructure

An Enhanced UV–Vis–NIR an d Flexible Photodetector Based on Electrospun ZnO Nanowire Array/PbS Quantum Dots Film Heterostructure

Charge-integrating organic heterojunction phototransistors for wide-dynamic-range image sensors

Chip‐Scale Fabrication of Uniform Lead Halide Perovskites Microlaser Array and Photodetector Array

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