材料科学
制作
有机太阳能电池
蒸发
化学工程
溶解
基质(水族馆)
惰性气体
惰性
有机半导体
能量转换效率
溶剂
光电子学
纳米技术
聚合物
复合材料
有机化学
热力学
工程类
地质学
病理
物理
化学
海洋学
替代医学
医学
作者
Tanya Kumari,Jiyeon Oh,Sang Myeon Lee,Mingyu Jeong,Jung-Ho Lee,Byongkyu Lee,So‐Huei Kang,Changduk Yang
出处
期刊:Nano Energy
[Elsevier]
日期:2021-07-01
卷期号:85: 105982-105982
被引量:11
标识
DOI:10.1016/j.nanoen.2021.105982
摘要
Spontaneously spreading (SS) film process with water substrates in the air (inert free atmosphere) has recently emerged as an effective technique for the fabrication of large-area organic solar cells (OSCs), however, there are limited studies on the process until now. Herein, we carried out an in-depth study on the influence of varying the temperature of the water substrate during the SS process on the quality of the film and performance of two test-bed OSC devices (PM6:ITIC-4F and PM6:Y7). By accounting for the changes in the kinetics and thermodynamics of the evaporation and dissolution of the solvent in water, we observed a striking water temperature dependence of the morphology and OSC performance. Via careful device optimization with the varying water temperatures, we achieved high power conversion efficiencies (PCEs) of 11.13% and 13.83% for PM6:ITIC-4F-and PM6:Y7-based SS-OSCs processed at 25 °C water temperature, respectively. The 13.83% PCE is the hitherto the highest reported value of the air-processed SS-OSCs. The strategy reported herein with which the quality of films can be controlled by simple modulation of the water temperature can promote the utilization of the SS process in the fabrication of scalable devices of various organic semiconductors.
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