Organic and solution-processed tandem solar cells with 17.3% efficiency

• Published in: Science (American Association for the Advancement of Science) Vol. 361; no. 6407; pp. 1094 - 1098
• Main Authors: Meng, Lingxian, Zhang, Yamin, Wan, Xiangjian, Li, Chenxi, Zhang, Xin, Wang, Yanbo, Ke, Xin, Xiao, Zuo, Ding, Liming, Xia, Ruoxi, Yip, Hin-Lap, Cao, Yong, Chen, Yongsheng
• Format: Journal Article
• Language: English
• Published: United States The American Association for the Advancement of Science 14.09.2018
• Subjects: Charge materials; Efficiency; Electromagnetic absorption; Empirical analysis; Energy conversion efficiency; Organic materials; Organic semiconductors; Photovoltaic cells; Photovoltaics; Solar cells; Thickness

Tandem solar cells can boost efficiency by using a wider range of the solar spectrum. The bandgap of organic semiconductors can be tuned over a wide range, but, for a two-terminal device that directly connects the cells, the currents produced must be nearly equal. Meng et al. used a semiempirical an...