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Science China Materials

, Volume 60, Issue 5, pp 407–414 | Cite as

High-performance ultraviolet-visible tunable perovskite photodetector based on solar cell structure

  • Mengni Xue (薛梦妮)
  • Hai Zhou (周海)
  • Yang Xu (许杨)
  • Jun Mei (梅俊)
  • Lu Yang (杨麓)
  • Cong Ye (叶葱)
  • Jun Zhang (张军)
  • Hao Wang (王浩)
Articles

Abstract

An ultraviolet (UV)-visible tunable photodetector based on ZnO nanorod arrays (NAs)/perovskite heterojunction solar cell structures is presented, in which the ZnO NAs are prepared using the hydrothermal method and annealed in different atmospheres. Based on solar cell structure perovskite photodetectors, it exhibited highly repeatable and stable photoelectric response characteristics. In addition, the devices with ZnO NAs annealed in a vacuum showed a high responsivity of about 1014 cm Hz1/2 W−1 in the visible region, whereas the devices with ZnO NAs annealed in air exhibited good detectivity in the UV region, especially at around 350 nm. Furthermore, when the annealing atmosphere of the ZnO nanorods was changed from vacuum to air, the dominant detection region of the photodetectors was altered from the visible to the ultraviolet region. These results enable potential applications of the ZnO NAs/perovskite photodetectors in ultraviolet and visible regions.

Keywords

annealing UV-vis tunable ZnO nanorod arrays perovskite 

基于太阳电池结构高性能紫外-可见可调型钙钛矿探测器

摘要

本文报道了一种基于ZnO纳米棒阵列/钙钛矿电池结构的紫外-可见可调的光电探测器, 其中ZnO纳米棒阵列采用水热法制备并在不同气氛下退火. 基于电池结构的钙钛矿光电探测器具有较好的光电响应重复性和稳定性. ZnO纳米棒阵列真空退火的器件在可见光区域达到了1014 Jones的响应度, 而ZnO纳米棒阵列在空气中退火的器件在紫外光区域, 尤其在365 nm处有较好的探测性能. 进一步研究发现, 通过不同氛围退火, 实现了紫外-可见可调的光电探测性能. 以上结果表明ZnO纳米棒阵列/钙钛矿光电探测器在紫外和可见光区域存在潜在应用.

Notes

Acknowledgments

This work is supported by the National Nature Science Foundation of China (51372075).

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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Mengni Xue (薛梦妮)
    • 1
  • Hai Zhou (周海)
    • 1
  • Yang Xu (许杨)
    • 1
  • Jun Mei (梅俊)
    • 1
  • Lu Yang (杨麓)
    • 1
  • Cong Ye (叶葱)
    • 1
  • Jun Zhang (张军)
    • 1
  • Hao Wang (王浩)
    • 1
  1. 1.Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferroelectric and Dielectric Materials and Devices, Faculty of Physics and Electronic ScienceHubei UniversityWuhanChina

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