Long-term Stable Perovskite Solar Cells under 1000 Hours Continuous Illumination
Ganbaatar Tumen-Ulzii a b, Toshinori Matsushima a b c, Dino Klotz c, Chuanjiang Qin a b, Chihaya Adachi a b c
a OPERA, Kyushu University, Japan
b Japan Science and Technology Agency (JST), ERATO, Adachi Molecular Exciton Engineering Project
c International Institute for Carbon-Neutral Energy Research(I2CNER), Kyushu University
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP20)
Tsukuba-shi, Japan, 2020 January 20th - 22nd
Organizers: Michio Kondo and Takurou Murakami
Poster, Ganbaatar Tumen-Ulzii, 105
Publication date: 14th October 2019

 

Abstract

 

Organic-inorganic halide perovskite solar cells (PSCs) have high solar power conversion efficiency due to the excellent opto-electronic properties of this class of perovskite materials. However, improving their long-term stability under continuous illumination is essential for future commercialization. To improve the stability of PSCs, a variety of possible degradation mechanisms have been studied in detail. For example, moisture, oxygen and UV-light induced extrinsic degradation mechanisms are well known, and it is possible to avoid these degradation modes by using appropriate encapsulation technology. On the other hand, intrinsic degradation mechanisms such as phase segregation and ion migration induced degradation processes are still under debate, and further studies are needed. In this presentation, we will demonstrate how the ion migration affects the degradation in PSCs. Furthermore, we propose a strategy to overcome this intrinsic degradation via interface engineering. As a result, we obtain highly stable PSCs that show no degradation after 1,000 hours of continuous illumination.

  

 

This work was supported by the Japan Science and Technology Agency (JST), ERATO, Adachi Molecular Exciton Engineering Project (JST ERATO Grant number JPMJER1305), by the International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) sponsored by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan, by JSPS KAKENHI (Grant numbers JP15K14149 and JP16H04192), and by The Canon Foundation.

  

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