～1.2 V open-circuit voltage from organic solar cells

• 作者: Ailing Tang Zuo Xiao Liming Ding Erjun Zhou
• 来源期刊: 半导体学报（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: RESEARCH HIGHLIGHTS
• 页码范围: 5-7
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/1674-4926/42/7/070202

摘要

Organic solar cells (OSCs) have achieved rapid advance due to the continuous development of high-performance key materials.Recently,the power conversion efficiencies (PCEs)of OSCs under 1 Sun condition (AM 1.5 G,100 mW/cm2) are striving toward 19％[1-5].The PCE improvement benefits from the largely enhanced short-circuit current density (Jsc) and fill factor (FF).However,these cells show relatively low open-circuit voltage (Voc) around 0.8-0.9 V.The rise of Internet of Things (loT) industry has promoted the indoor application of solar cells.OSCs can afford higher PCEs under various indoor light as compared to 1 Sun condition[6,7],but they present lower Voc[8].Fabricating tandem devices is an effective strategy to boost the performance of OSCs.Sub-cells with syn-chronously high Voc,Jsc and FF are highly desired in tandem cells,while these sub-cells are still limited[9].Thus,improving Voc without sacrificing Jsc and FF is an urgent mission in OSCs.