Nitrogen‐Doped Nickel Oxide as Hole Transport Layer for High‐Efficiency Inverted Planar Perovskite Solar Cells

Solar RRL ◽  
2019 ◽  
Vol 3 (10) ◽  
pp. 1900164 ◽  
Author(s):  
Pengcheng Zhou ◽  
Bairu Li ◽  
Zhimin Fang ◽  
Weiran Zhou ◽  
Mengmeng Zhang ◽  
...  
2021 ◽  
Author(s):  
Hans Köbler ◽  
Mark V. Khenkin ◽  
Rajarshi Roy ◽  
Nga Phung ◽  
Quiterie Emery ◽  
...  

Abstract Over the past decade, perovskite solar cells have travelled an amazing way towards high efficiency. However, a major roadblock remaining is the operational stability, while achieving technological maturity and proving real-world stability is crucial to gain trust among investors. In that sense, it is of high interest to be able to predict the operational lifetime, which needs to be in the range of years or decades, within an experimentally reasonable timeframe. Yet, peculiarities of perovskite solar cells’ ageing behaviour lead to severe difficulties in translating the results of indoor tests to their outdoor counterpart. In particular, transient processes cause diverse results among different ageing tests.Here, for the first time, we show a complete set of constant illumination indoor testing, cycled illumination indoor testing and real-world outdoor testing on equal in-house devices. Exemplarily, we compare two different types of perovskite solar cells, in which only the hole-transport layer is varied. Despite this small change, the devices show distinctly different transient behaviour. In either case, the commonly used constant illumination experiments fail to predict the outdoor behaviour of the cell. Yet, we observe a good correlation between the cycled illumination test and the outdoor behaviour of one of the two solar cells, while this is not the case for the other system. This result highlights the urge for further research on how to perform meaningful accelerated indoor tests to predict the outdoor lifetime of perovskite solar cells.


Author(s):  
Ersan Y. Muslih ◽  
Md. Shahiduzzaman ◽  
Md. Akhtaruzzaman ◽  
Mohammad Ismail Hossain ◽  
LiangLe Wang ◽  
...  

Abstract Nickel oxide (NiOx) hole transport layer was made from nickel oxide powder by a simple process and non-stabilizer or chelating agent. We used ethanol as main solvent and nitric acid less than 2% as co-solvent. The formation reaction mechanism of NiOx thin film was also studied. Perovskite solar cells (PSCs) with the optimum thickness of 70 nm exhibited power conversion efficiency as high as 12.99%, which is superior to those of PSCs with their counterparts. The moisture stability of NiOx based device (non-encapsulated) remained above 70% of their initial output after 700h storage at ambient conditions.


2019 ◽  
Vol 7 (24) ◽  
pp. 7288-7298 ◽  
Author(s):  
Ju Ho Lee ◽  
Young Wook Noh ◽  
In Su Jin ◽  
Sang Hyun Park ◽  
Jae Woong Jung

Current–voltage hysteresis is a critical issue that impacts the photovoltaic performance of perovskite solar cells, and thus, it is imperative to develop high-efficiency perovskite solar cells without hysteresis behavior.


Nanoscale ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 5617-5625 ◽  
Author(s):  
Jiankai Zhang ◽  
Hui Luo ◽  
Weijia Xie ◽  
Xuanhuai Lin ◽  
Xian Hou ◽  
...  

A ferrocenedicarboxylic acid modified NiOx layer greatly improves the crystallization of a perovskite, its interface contact properties and electrical conductivity and also passivates the interface.


2017 ◽  
Vol 5 (14) ◽  
pp. 6597-6605 ◽  
Author(s):  
Zonghao Liu ◽  
Aili Zhu ◽  
Fensha Cai ◽  
LeiMing Tao ◽  
Yinhua Zhou ◽  
...  

Here, a low-temperature solution-processed nickel oxide (NiOx) thin film was first employed as a hole transport layer in both inverted (p-i-n) planar and regular (n-i-p) mesoscopic organic–inorganic hybrid perovskite solar cells (PVSCs).


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