Efficient light trapping and interface engineering for performance enhancement in PTB7-Th: PC₇₀BM organic solar cells

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• 作者：Kunal Borse¹ ; Ramakant Sharma¹ ; H.P. Sagar ; P. Anil Reddy ; Dipti Gupta ; ^{diptig@iitb.ac.in} ; Aswani Yella ; ^{aswani.yella@iitb.ac.in}
• 关键词：Organic solar cells ; PTB7-Th ; PC70BM ; Interface engineering ; Efficient light trapping ; PDMS texturing
• 刊名：Organic Electronics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：41
• 期：Complete
• 页码：280-286
• 全文大小：2299 K
• 卷排序：41

文摘

Simultaneously address the issue of inefficient light absorption and inefficient charge collection. Simulation studies confirm increase in the optical path length of the incident light due to geometrical light trapping. J-V and EQE measurements illustrate an increase in Jsc and FF. Increase in PCE by ∼37% is observed after interface modification and textured PDMS films. Surface morphological studies of the polymer blend films were characterized by AFM.