Low-Temperature Synthesized Nb-Doped TiO2 Electron Transport Layer Enabling High-Efficiency Perovskite Solar Cells by Band Alignment Tuning

2020 ◽  
Vol 12 (13) ◽  
pp. 15175-15182
Author(s):  
Yoshitaka Sanehira ◽  
Naoyuki Shibayama ◽  
Youhei Numata ◽  
Masashi Ikegami ◽  
Tsutomu Miyasaka
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%.


Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1676
Author(s):  
Md. Shahiduzzaman ◽  
Daiki Kuwahara ◽  
Masahiro Nakano ◽  
Makoto Karakawa ◽  
Kohshin Takahashi ◽  
...  

The most frequently used n-type electron transport layer (ETL) in high-efficiency perovskite solar cells (PSCs) is based on titanium oxide (TiO2) films, involving a high-temperature sintering (>450 °C) process. In this work, a dense, uniform, and pinhole-free compact titanium dioxide (TiOx) film was prepared via a facile chemical bath deposition process at a low temperature (80 °C), and was applied as a high-quality ETL for efficient planar PSCs. We tested and compared as-deposited substrates sintered at low temperatures (< 150 °C) and high temperatures (> 450 °C), as well as their corresponding photovoltaic properties. PSCs with a high-temperature treated TiO2 compact layer (CL) exhibited power conversion efficiencies (PCEs) as high as 15.50%, which was close to those of PSCs with low-temperature treated TiOx (14.51%). This indicates that low-temperature treated TiOx can be a potential ETL candidate for planar PSCs. In summary, this work reports on the fabrication of low-temperature processed PSCs, and can be of interest for the design and fabrication of future low-cost and flexible solar modules.


Solar RRL ◽  
2020 ◽  
Vol 4 (6) ◽  
pp. 2000090 ◽  
Author(s):  
Jiawu Tian ◽  
Jianjun Zhang ◽  
Xiaohe Li ◽  
Bei Cheng ◽  
Jiaguo Yu ◽  
...  

2017 ◽  
Vol 5 (4) ◽  
pp. 1706-1712 ◽  
Author(s):  
Xin Wang ◽  
Lin-Long Deng ◽  
Lu-Yao Wang ◽  
Si-Min Dai ◽  
Zhou Xing ◽  
...  

Low-temperature, solution-processed cerium oxide can serve as a promising electron transport layer to replace commonly used TiO2 in planar perovskite solar cells, with high efficiency and enhanced stability.


Author(s):  
Zafar Arshad ◽  
Asif Hussain Khoja ◽  
Sehar Shakir ◽  
Asif Afzal ◽  
M.A. Mujtaba ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document