S-doped CQDs tailored transparent counter electrodes for high-efficiency bifacial dye-sensitized solar cells. (20th January 2018)

• Record Type: Journal Article
• Authors: Zhang, Yue; Zhao, Yuanyuan; Duan, Jialong; Tang, Qunwei
• Is Part Of: Electrochimica acta. Volume 261(2018)
• Page Start: 588
• Page End: 595
• Publication Date: 2018-01-20
• Subjects: Dye-sensitized solar cells -- Alloy counter electrodes -- Carbon quantum dots -- Photovoltaics; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2017.12.183
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: Bifacial photovoltaics are promising devices for significantly harvesting solar energy and generating power from either front or rear side. We present here the fabrication of new category of high-performance bifacial dye-sensitized solar cells (DSSCs) tailored with transparent S-doped carbon quantum dots (S-CQDs)/metal selenide counter electrodes. Arising from photoexcitation of S-CQDs and therefore increased electron density at electrode surfaces, the catalytic ability of S-CQDs tailored counter electrodes is markedly enhanced under solar irradiation. The bifacial DSSCs yield maximized front and rear efficiencies of 9.15% and 6.26%, respectively. Highlights: S-CQDs tailored metal selenide CEs are made for bifacial DSSCs. The S-CQDs tailored CEs have higher catalytic activity under solar irradiation. The bifacial DSSCs yield front and rear efficiencies of 9.15% and 6.26%, respectively.