Engineering of hole-selective contact for low temperature-processed carbon counter electrode-based perovskite solar cells

2015 ◽  
Vol 3 (48) ◽  
pp. 24272-24280 ◽  
Author(s):  
Fuguo Zhang ◽  
Xichuan Yang ◽  
Ming Cheng ◽  
Jiajia Li ◽  
Weihan Wang ◽  
...  

Improved performance and stability of low temperature printable carbon counter electrode based perovskite solar cells by interfacial engineering of the hole selective contact with TPDI.

2020 ◽  
Vol 8 (10) ◽  
pp. 5308-5314 ◽  
Author(s):  
Xia Yang ◽  
Hanjun Yang ◽  
Xiaotian Hu ◽  
Wenting Li ◽  
Zhimin Fang ◽  
...  

High-efficiency flexible CsPbI2Br PSCs are designed by introducing Al-doped ZnO as an electron-transport layer and tert-butyl cyanoacetate as a hole passivation layer. The optimized PSC exhibits outstanding stability and a champion PCE of 15.08%.


Nano Energy ◽  
2016 ◽  
Vol 28 ◽  
pp. 330-337 ◽  
Author(s):  
Jiangsheng Xie ◽  
Xuegong Yu ◽  
Xuan Sun ◽  
Jiabin Huang ◽  
Yunhai Zhang ◽  
...  

2021 ◽  
Vol 42 (11) ◽  
pp. 112201
Author(s):  
Xiao Zhang ◽  
Sai Ma ◽  
Jingbi You ◽  
Yang Bai ◽  
Qi Chen

Abstract Interfacial engineering has made an outstanding contribution to the development of high-efficiency perovskite solar cells (PSCs). Here, we introduce an effective interface passivation strategy via methoxysilane molecules with different terminal groups. The power conversion efficiency (PCE) has increased from 20.97% to 21.97% after introducing a 3-isocyanatopropyltrimethoxy silane (IPTMS) molecule with carbonyl group, while a trimethoxy[3-(phenylamino)propyl] silane (PAPMS) molecule containing aniline group deteriorates the photovoltaic performance as a consequence of decreased open circuit voltage. The improved performance after IPTMS treatment is ascribed to the suppression of non-radiative recombination and enhancement of carrier transportation. In addition, the devices with carbonyl group modification exhibit outstanding thermal stability, which maintain 90% of its initial PCE after 1500 h exposure. This work provides a guideline for the design of passivation molecules aiming to deliver the efficiency and thermal stability simultaneously.


Nanoscale ◽  
2017 ◽  
Vol 9 (17) ◽  
pp. 5475-5482 ◽  
Author(s):  
T. A. Nirmal Peiris ◽  
Ajay K. Baranwal ◽  
Hiroyuki Kanda ◽  
Shota Fukumoto ◽  
Shusaku Kanaya ◽  
...  

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1220 ◽  
Author(s):  
Jiyoon Nam ◽  
Inje Nam ◽  
Eun-Jin Song ◽  
Jung-Dae Kwon ◽  
Jongbok Kim ◽  
...  

The mesoporous TiO2 nanoparticle-based scaffold structure is the best electron transport layer (ETL) for perovskite solar cells (PSCs) and is still used in most PSCs with optimal photovoltaic characteristics. However, the high sintering temperature of TiO2 nanoparticles required to remove binders from the TiO2 paste limits PSC application to flexible electronics. In this study, a simple interface modification process involving ethanol rinsing is developed to enhance the photovoltaic characteristics of low-temperature processed PSCs. This easy and fast technique could enable remarkable performance by PSCs by significantly increasing the fill factor and current density, leading to a power conversion efficiency more than four times that of untreated solar cells.


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