For the perovskite halides, current voltage hysteresis is the biggest puzzle to be solved before industrialization in spite of promising features for future photo-voltaic applications. All the possible causes, from the classical (viz., morphology, defects, slow transient capacitance, etc.) to quantum (viz., spin–orbit interaction) ones, are investigated. However, its origin is still under debate, as possibilities showed some ambiguity on the science known until now. In the present work, we have studied the time dependent photo-conduction behavior of in continuous illumination of AM 1.5 G Sun light for 3 h. We observed a negative differential resistance for a forward scanned current–voltage curve in AM 1.5 G Sun light. Our investigations suggest that the photo-current voltage hysteresis is primarily affected by the thermionic-field emission, which slows down the drift velocity of hot charge carriers with field applications. This study will further lead the scientific community to investigate whether this slowdown in drift velocity is related to the Gunn effect or the Rashba effect.
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14 June 2020
Research Article|
June 12 2020
Hysteric photo-conduction and negative differential resistance in cesium lead bromide Available to Purchase
Special Collection:
Hybrid Organic-Inorganic Halide Perovskites
Manish Kumar;
Manish Kumar
Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi
, Varanasi 221005, India
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Priyanka A. Jha
;
Priyanka A. Jha
Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi
, Varanasi 221005, India
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Pardeep K. Jha
;
Pardeep K. Jha
a)
Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi
, Varanasi 221005, India
a)Author to whom correspondence should be addressed: [email protected]
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Prabhakar Singh
Prabhakar Singh
b)
Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi
, Varanasi 221005, India
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Manish Kumar
Priyanka A. Jha
Pardeep K. Jha
a)
Prabhakar Singh
b)
Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi
, Varanasi 221005, India
a)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the special collection on Hybrid Organic-Inorganic Halide Perovskites
J. Appl. Phys. 127, 224904 (2020)
Article history
Received:
April 29 2020
Accepted:
May 30 2020
Citation
Manish Kumar, Priyanka A. Jha, Pardeep K. Jha, Prabhakar Singh; Hysteric photo-conduction and negative differential resistance in cesium lead bromide. J. Appl. Phys. 14 June 2020; 127 (22): 224904. https://doi.org/10.1063/5.0012202
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