TY - JOUR
T1 - Two-dimensional perovskite NdNb2O7 for high-performance UV photodetectors by a general exfoliation and assembly strategy
AU - Zhang, Yong
AU - Yao, Jian
AU - Teng, Yu
AU - Zhang, Zhen
AU - Wang, Lin
AU - Wang, Xiujun
AU - Li, Yunfei
AU - Kang, Lixing
AU - He, Jr-Hau
AU - Fang, Xiaosheng
PY - 2023/12/1
Y1 - 2023/12/1
N2 - Two-dimensional (2D) oxide perovskites show great promise as candidates for future optoelectronic devices. For the first time, we have successfully exfoliated 2D perovskite NdNb2O7 (NNO) nanosheets by a solid-state calcination and liquid-phase exfoliation method. The individual NNO nanosheet photodetector (PD) demonstrates outstanding performance in detecting UV light (260 nm, 3 V), including high responsivity (62 AW−1), high detectivity (6.7 *1012 Jones), high spectral selectivity (R260/R400= 9000), fast response speed (0.1/7.8 ms) and long-term stability. Furthermore, through a simple interface self-assembly technique, we have successfully achieved orderly and flat films of NNO nanosheets. The resulting film exhibits high transparency (>75 %) in the visible light range. The NNO film device demonstrates excellent performance after undergoing numerous bending tests. This work not only presents a new candidate for high-performance and high-stability UV photodetectors but also introduces a general exfoliation and assembly strategy. © 2023 Published by Elsevier Ltd.
AB - Two-dimensional (2D) oxide perovskites show great promise as candidates for future optoelectronic devices. For the first time, we have successfully exfoliated 2D perovskite NdNb2O7 (NNO) nanosheets by a solid-state calcination and liquid-phase exfoliation method. The individual NNO nanosheet photodetector (PD) demonstrates outstanding performance in detecting UV light (260 nm, 3 V), including high responsivity (62 AW−1), high detectivity (6.7 *1012 Jones), high spectral selectivity (R260/R400= 9000), fast response speed (0.1/7.8 ms) and long-term stability. Furthermore, through a simple interface self-assembly technique, we have successfully achieved orderly and flat films of NNO nanosheets. The resulting film exhibits high transparency (>75 %) in the visible light range. The NNO film device demonstrates excellent performance after undergoing numerous bending tests. This work not only presents a new candidate for high-performance and high-stability UV photodetectors but also introduces a general exfoliation and assembly strategy. © 2023 Published by Elsevier Ltd.
KW - NdNb2O7
KW - Perovskite
KW - Self-assembly
KW - Two-dimensional
KW - UV Photodetectors
UR - http://www.scopus.com/inward/record.url?scp=85172015396&partnerID=8YFLogxK
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:001085294300001
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85172015396&origin=recordpage
U2 - 10.1016/j.nanoen.2023.108915
DO - 10.1016/j.nanoen.2023.108915
M3 - RGC 21 - Publication in refereed journal
SN - 2211-2855
VL - 117
JO - Nano Energy
JF - Nano Energy
M1 - 108915
ER -