scholarly journals MAPbI3 Microrods-Based Photo Resistor Switches: Fabrication and Electrical Characterization

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4385
Author(s):  
Ehsan Raza ◽  
Fakhra Aziz ◽  
Arti Mishra ◽  
Noora Jabor Al-Thani ◽  
Zubair Ahmad

The current work proposed the application of methylammonium lead iodide (MAPbI3) perovskite microrods toward photo resistor switches. A metal-semiconductor-metal (MSM) configuration with a structure of silver-MAPbI3(rods)-silver (Ag/MAPbI3/Ag) based photo-resistor was fabricated. The MAPbI3 microrods were prepared by adopting a facile low-temperature solution process, and then an independent MAPbI3 microrod was employed to the two-terminal device. The morphological and elemental compositional studies of the fabricated MAPbI3 microrods were performed using FESEM and EDS, respectively. The voltage-dependent electrical behavior and electronic conduction mechanisms of the fabricated photo-resistors were studied using current–voltage (I–V) characteristics. Different conduction mechanisms were observed at different voltage ranges in dark and under illumination. In dark conditions, the conduction behavior was dominated by typical trap-controlled charge transport mechanisms within the investigated voltage range. However, under illumination, the carrier transport is dominated by the current photogenerated mechanism. This study could extend the promising application of perovskite microrods in photo-induced resistor switches and beyond.

Nano Letters ◽  
2014 ◽  
Vol 14 (12) ◽  
pp. 6761-6766 ◽  
Author(s):  
Endre Horváth ◽  
Massimo Spina ◽  
Zsolt Szekrényes ◽  
Katalin Kamarás ◽  
Richard Gaal ◽  
...  

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2407
Author(s):  
Chunhai Li ◽  
Longfeng Lv ◽  
Liang Qin ◽  
Lijie Zhu ◽  
Feng Teng ◽  
...  

Although the performance of hybrid organic-inorganic perovskite solar cells (PSCs) is encouraging, the detailed working principles and mechanisms of PSCs remain to be further studied. In this work, an overshoot phenomenon of open-circuit voltage (Voc) was observed when the illumination light pulse was switched off. The evolution of the Voc overshoot was systematically investigated along with the intensity and the width of the light pulse, the background illumination, and pretreatment by different bias. Based on the experimental results, we could conclude that the Voc overshoot originated from carrier motion against carrier collection direction, which happened at the ionic-accumulation-induced band bending areas near the interfaces between the perovskite active layer and the two carrier transport layers. The investigation on the Voc overshoot can help us to better understand ionic migration, carrier accumulation, and recombination of PSCs under open-circuit conditions.


2017 ◽  
Vol 8 (5) ◽  
pp. 948-953 ◽  
Author(s):  
Andrew H. Hill ◽  
Kori E. Smyser ◽  
Casey L. Kennedy ◽  
Eric S. Massaro ◽  
Erik M. Grumstrup

Author(s):  
Sa’ar Shor Peled ◽  
Maayan Perez ◽  
Dafna Meron ◽  
Anna Osherov ◽  
Vladimir Bulovic ◽  
...  

We describe a two-step, all solution process for converting lead selenide thin films into methylammonium lead iodide (MAPbI3) perovskite material.


2020 ◽  
Vol 714 ◽  
pp. 138367 ◽  
Author(s):  
Maayan Perez ◽  
Sa'ar Shor Peled ◽  
Tzvi Templeman ◽  
Anna Osherov ◽  
Vladimir Bulovic ◽  
...  

2017 ◽  
Vol 58 (8) ◽  
Author(s):  
E. S. Yudanova ◽  
◽  
T. A. Duda ◽  
O. E. Tereshchenko ◽  
O. I. Semenova ◽  
...  

Author(s):  
Holger Röhm ◽  
Tobias Leonhard ◽  
Michael J. Hoffmann ◽  
Alexander Colsmann

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