Ko Yohan, Kim Yeong Rim, Jang Haneol, Lee Chanyong, Kang Man Gu, Jun Yongseok
Department of Materials Chemistry and Engineering, Department of Energy Engineering, Konkuk University, Seoul, 143-701, Republic of Korea.
IT Materials Technology Research Section, ETRI, Gajeongro 218, Yuseong, Daejeon, Republic of Korea.
Nanoscale Res Lett. 2017 Aug 16;12(1):498. doi: 10.1186/s11671-017-2247-x.
We report the performance of perovskite solar cells (PSCs) with an electron transport layer (ETL) consisting of a SnO thin film obtained by electrochemical deposition. The surface morphology and thickness of the electrodeposited SnO films were closely related to electrochemical process conditions, i.e., the applied voltage, bath temperature, and deposition time. We investigated the performance of PSCs based on the SnO films. Remarkably, the experimental factors that are closely associated with the photovoltaic performance were strongly affected by the SnO ETLs. Finally, to enhance the photovoltaic performance, the surfaces of the SnO films were modified slightly by TiCl hydrolysis. This process improves charge extraction and suppresses charge recombination.
我们报告了采用通过电化学沉积获得的SnO薄膜作为电子传输层（ETL）的钙钛矿太阳能电池（PSC）的性能。电沉积SnO薄膜的表面形态和厚度与电化学工艺条件密切相关，即施加电压、镀液温度和沉积时间。我们研究了基于SnO薄膜的PSC的性能。值得注意的是，与光伏性能密切相关的实验因素受到SnO ETLs的强烈影响。最后，为了提高光伏性能，通过TiCl水解对SnO薄膜的表面进行了轻微改性。这一过程改善了电荷提取并抑制了电荷复合。
