TY - JOUR
T1 - Utilizing MVAD method to optimize crystallization and nanostructured surface of the perovskite film: Toward electroluminescent and ultraviolet photodetective bifunctional optoelectronics
AU - Zhou, Dianli
AU - Zheng, Yifan
AU - Wang, Xiaolin
AU - Guo, Hao
AU - Yu, Junsheng
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by the financial support from National Key R&D Program of China (Grant No. 2018YFB0407100-02), National Natural Science Foundation of China (NSFC) (Grant Nos. 61421002, 61675041 & 51703019), the China Scholarship Council (Grant No. 201706070043). D. Zhou also appreciates Prof. Osman M. Bakr at King Abdullah University of Science and Technology (KAUST) for his helpful suggestion and discussion for this work.
PY - 2019/1/30
Y1 - 2019/1/30
N2 - Metal-halide perovskite of MAPbBr3, by exhibiting several remarkable optoproperties such as tunable energy bandgap, high absorption coefficients, high color purity, and long charge carrier diffusion lengths, has made great contributions to photovoltaic and electroluminescent (EL) technologies, i.e., solar cell, photodetector, light-emitting diode, and newly developed bifunctional optoelectronics. To realize high performance bifunctional optoelectronics, it is imperative to promote the balance of the trade-off between effective radiative recombination during EL process and fast exciton dissociation in photodetective process. Herein, we optimize the crystallization and nanostructured surface of MAPbBr3 film through applying multistep vapour assisted deposition (MVAD) method. Then, we enhance the optical field distribution and charge transfer feature of MAPbBr3 film by establishing an optical simulation model. Based on our modifed MAPbBr3 active layer, finally, we demonstrate a high performance device with EL and ultraviolet photodetective bifunctions, which exhibits a 6.27-fold improvement of brightness and a 3 orders of magnitude increase of detectivity. To the best of our knowledge, this work not only reports high bifunctional perovskite optoelectronics performance, but also illustrates the optical field redistribution process in horizontal orientation surface of MAPbBr3 films for relevant researchers.
AB - Metal-halide perovskite of MAPbBr3, by exhibiting several remarkable optoproperties such as tunable energy bandgap, high absorption coefficients, high color purity, and long charge carrier diffusion lengths, has made great contributions to photovoltaic and electroluminescent (EL) technologies, i.e., solar cell, photodetector, light-emitting diode, and newly developed bifunctional optoelectronics. To realize high performance bifunctional optoelectronics, it is imperative to promote the balance of the trade-off between effective radiative recombination during EL process and fast exciton dissociation in photodetective process. Herein, we optimize the crystallization and nanostructured surface of MAPbBr3 film through applying multistep vapour assisted deposition (MVAD) method. Then, we enhance the optical field distribution and charge transfer feature of MAPbBr3 film by establishing an optical simulation model. Based on our modifed MAPbBr3 active layer, finally, we demonstrate a high performance device with EL and ultraviolet photodetective bifunctions, which exhibits a 6.27-fold improvement of brightness and a 3 orders of magnitude increase of detectivity. To the best of our knowledge, this work not only reports high bifunctional perovskite optoelectronics performance, but also illustrates the optical field redistribution process in horizontal orientation surface of MAPbBr3 films for relevant researchers.
UR - http://hdl.handle.net/10754/631658
UR - https://www.sciencedirect.com/science/article/pii/S0169433219302983
UR - http://www.scopus.com/inward/record.url?scp=85061355142&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2019.01.267
DO - 10.1016/j.apsusc.2019.01.267
M3 - Article
SN - 0169-4332
VL - 478
SP - 1009
EP - 1016
JO - Applied Surface Science
JF - Applied Surface Science
ER -
