Free-standing flexible carbon electrode for highly efficient hole-conductor-free perovskite solar cells. (November 2015)

• Record Type: Journal Article
• Authors: Wei, Huiyun; Xiao, Junyan; Yang, Yueyong; Lv, Songtao; Shi, Jiangjian; Xu, Xin; Dong, Juan; Luo, Yanhong; Li, Dongmei; Meng, Qingbo
• Is Part Of: Carbon. Volume 93(2015)
• Page Start: 861
• Page End: 868
• Publication Date: 2015-11
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2015.05.042
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: A free-standing thermoplastic carbon film with good flexibility and conductivity has been developed and introduced in perovskite solar cells for the first time. Due to its thermoplasticity, this free-standing carbon film can be directly hot pressed onto the perovskite layer as counter electrode. By optimization toward the components of carbon films and hot-pressing pressure, the back contact between the perovskite and carbon films has been significantly improved. Up to 13.53% of power conversion efficiency has been achieved, which is one of the highest efficiencies for hole transporting material-free perovskite solar cells. This kind of flexible carbon electrodes with the advantages of low-cost, simple and low-temperature (<100 °C) preparation process and high efficiency, show great potential application in perovskite solar cells.