Photo-induced degradation of lead halide perovskite solar cells caused by the hole transport layer/metal electrode interface

2016 ◽  
Vol 4 (5) ◽  
pp. 1991-1998 ◽  
Author(s):  
Dong Wei ◽  
Tianyue Wang ◽  
Jun Ji ◽  
Meicheng Li ◽  
Peng Cui ◽  
...  

Photo-induced degradation of PSCs is caused by damage at the HTM/Au interface, which can be recovered by renewal of the Au electrode.

2020 ◽  
Vol 8 (7) ◽  
pp. 2419-2424
Author(s):  
Sergey Tsarev ◽  
Olga A. Kraevaya ◽  
Sergey Yu. Luchkin ◽  
Keith J. Stevenson ◽  
Pavel A. Troshin

In this study, 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPOL) is presented as an additive to modify a polytriarylamine-based hole transport layer (HTL) for perovskite solar cells assembled in a regular n–i–p configuration.


2018 ◽  
Vol 51 (29) ◽  
pp. 294001 ◽  
Author(s):  
Luis K Ono ◽  
Zafer Hawash ◽  
Emilio J Juarez-Perez ◽  
Longbin Qiu ◽  
Yan Jiang ◽  
...  

2018 ◽  
Vol 6 (16) ◽  
pp. 6882-6890 ◽  
Author(s):  
Bardo J. Bruijnaers ◽  
Eric Schiepers ◽  
Christ H. L. Weijtens ◽  
Stefan C. J. Meskers ◽  
Martijn M. Wienk ◽  
...  

Thermal annealing in air of p–i–n metal halide perovskite solar cells processed on PEDOT:PSS restores the work function of this hole transport layer, resulting in power conversion efficiency.


2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Meiying Liang ◽  
Adnan Ali ◽  
Abdelhak Belaidi ◽  
Mohammad Istiaque Hossain ◽  
Oskar Ronan ◽  
...  

Abstract Organometallic-halide perovskite solar cells (PSCs) are emerging as the most promising next generation solar cell devices. However, the stability is still the main bottleneck of their further development. Here, we introduce two-dimensional (2D) molybdenum chalcogenides (MoS2 and MoSe2) (MCs) nanoflakes as a buffer layer between perovskite layer and hole transport layer (HTL) to improve the stability of the organometallic-halide PSCs. 2D MCs are obtained via liquid-phase exfoliated (LPE) approach, and Glass/FTO/compact-TiO2/ mesoporous-TiO2/FA85MA15PbI85Br15/2D MCs/Spiro-OMeTAD/Au structured solar cell devices are designed and fabricated. In this system, 2D MCs act both as a protective layer and an additional HTL of PSCs. This kind of PSCs achieve a relatively high-power conversion efficiency (PCE) of 14.9%, along with a much longer lifetime stability compared to the standard PSCs. After 1 h, PCE of the PSC adding a 2D MCs buffer layer could maintain 93.1% of initial value, while the PCE of the standard PSC dropped dramatically to 78.2% of initial efficiency. Our results pave the way towards the implementation of 2D MCs nanoflakes as a material able to boost the shelf life of PSCs and further provide the opportunity to fabricate large-area PSCs in view of their commercialization.


2019 ◽  
Vol 2 (7) ◽  
pp. 5039-5049 ◽  
Author(s):  
Takeyuki Sekimoto ◽  
Taisuke Matsui ◽  
Takashi Nishihara ◽  
Ryusuke Uchida ◽  
Takashi Sekiguchi ◽  
...  

2021 ◽  
Vol 21 (7) ◽  
pp. 3806-3812
Author(s):  
Truyen Hai Dang ◽  
Sangmo Kim ◽  
Maro Kim ◽  
Chung Wung Bark

Perovskite solar cells have been attracting extensive attention because of their superior photovoltaic performances and lower costs as compared to those of prevailing photovoltaic technologies. There are four main interfaces in perovskite solar cells: flourine-doped tin oxide/electron transport layer, electron transport layer/perovskite layer, perovskite layer/hole transport layer, and hole transport layer/metal electrode. Among them, the interface between the perovskite layer (general formula RPbX3) and electron transport layer significantly affects the power conversion efficiency. In this study, a layer of TiO2, which is the most popular metal oxides used for perovskite solar cells applications, was deposited as the electron transport layer. To enhance the perovskite solar cells performance, surface treatment was performed with TiCl4 (80 mM). To investigate the effect of TiCl4 treatment, ultraviolet-visible spectroscopy was performed on the perovskite film. Atomic force microscopy, X-ray diffraction, scanning electron microscopy and performance of perovskite solar cells have been also evaluated in this paper. The results indicated that the TiCl4 treatment significantly improved the perovskite solar cells performance.


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