材料科学
格子(音乐)
太阳能电池
晶体结构
衍射
结晶学
拉伤
晶格常数
凝聚态物理
光电子学
光学
化学
物理
声学
医学
内科学
作者
Kohei Nishimura,Daisuke Hirotani,Muhammad Akmal Kamarudin,Qing Shen,Taro Toyoda,Satoshi Iikubo,Takashi Minemoto,Kenji Yoshino,Shuzi Hayase
标识
DOI:10.1021/acsami.9b09564
摘要
In the composition of Q0.1(FA0.75MA0.25)0.9SnI3, Q is replaced with Na+, K+, Cs+, ethylammonium+ (EA+), and butylammonium+ (BA+), respectively, and the relationship between actually measured lattice strain and photovoltaic performances is discussed. The lattice strain evaluated by the Williamson–hall plot of X-ray diffraction data decreased as the tolerance factor was close to one. The efficiency of the Sn-perovskite solar cell was enhanced as the lattice strain decreased. Among them, EA0.1(FA0.75MA0.25)0.9SnI3 having lowest lattice strain gave the best result of 5.41%. Because the carrier mobility increased with a decrease in the lattice strain, these lattice strains would disturb carrier mobility and decrease the solar cell efficiency. Finally, the results that the efficiency of the SnGe-perovskite solar cells was gradually enhanced from 6.42 to 7.60% during storage, was explained by the lattice strain relaxation during the storage.
科研通智能强力驱动
Strongly Powered by AbleSci AI