scholarly journals Tuning CH3NH3Pb(I1−xBrx)3 perovskite oxygen stability in thin films and solar cells

2017 ◽  
Vol 5 (20) ◽  
pp. 9553-9560 ◽  
Author(s):  
Sebastian Pont ◽  
Daniel Bryant ◽  
Chieh-Ting Lin ◽  
Nicholas Aristidou ◽  
Scot Wheeler ◽  
...  

Degradation analysis of CH3NH3Pb(I1−xBrx)3 mixed halide perovskites, showing promising environmental stability of CH3NH3PbBr3.

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Haochen Fan ◽  
Fengzhu Li ◽  
Pengcheng Wang ◽  
Zhenkun Gu ◽  
Jin-Hua Huang ◽  
...  

Abstract Defects from grain interiors and boundaries of perovskite films cause significant nonradiative recombination energy loss, and thus perovskite films with controlled crystallinity and large grains is critical for improvement of both photovoltaic performance and stability for perovskite-based solar cells. Here, a methylamine (MA0) gas-assisted crystallization method is developed for fabrication of methylammonium lead iodide (MAPbI3) perovskite films. In the process, the perovskite film is formed via controlled release of MA0 gas molecules from a liquid intermediate phase MAPbI3·xMA0. The resulting perovskite film comprises millimeter-sized grains with (110)-uniaxial crystallographic orientation, exhibiting much low trap density, long carrier lifetime, and excellent environmental stability. The corresponding perovskite solar cell exhibits a power conversion efficiency (PCE) of ~ 21.36%, which is among the highest reported for MAPbI3-based devices. This method provides important progress towards the fabrication of high-quality perovskite thin films for low-cost, highly efficient and stable perovskite solar cells.


After the breakthrough of conducting polymers, an incredible interest has been paid to integrate them in electronic component fabrication as an alternative to metals. Polyaniline is the most extensively studied material due to the ease of synthesis, better environmental stability, and enormous scope to modify its properties for solar cell applications. The electrical conductivity of PANI can be altered according to the need for the application where electronic devices made of conducting polymer composites are significantly dependent on the dielectric properties of the materials. Therefore, this chapter has been dedicated to the low-frequency AC conduction and dielectric studies of conducting PANI followed by having PANI thin films as efficient donor or acceptor bulk heterojunction layer to the hybrid solar cells.


2020 ◽  
Vol 10 (8) ◽  
pp. 1903221 ◽  
Author(s):  
Min Kim ◽  
Jetsabel M. Figueroa‐Tapia ◽  
Mirko Prato ◽  
Annamaria Petrozza

2017 ◽  
Vol 5 (39) ◽  
pp. 21002-21015 ◽  
Author(s):  
Taame Abraha Berhe ◽  
Ju-Hsiang Cheng ◽  
Wei-Nien Su ◽  
Chun-Jern Pan ◽  
Meng-Che Tsai ◽  
...  

Organolead halide perovskites are interesting light-absorbing materials for solar cells and light-emitting devices.


Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.


2013 ◽  
Vol 56 (4) ◽  
pp. 133-135
Author(s):  
Yuki IKEDA ◽  
Satoru IWAMORI ◽  
Hiroyuki MATSUMOTO ◽  
Kiyoshi YOSHINO ◽  
Itsuo NISHIYAMA ◽  
...  

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