Upconverting nanophosphor incorporated photoanodes for improved photoelectric performances of quantum dot sensitized solar cells. Issue 6 (3rd June 2018)

• Record Type: Journal Article
• Authors: Sun, Y.; An, X.; Chen, L.; Gao, Q.; Zhang, X.; Duan, L.; Lü, W.
• Is Part Of: Materials research letters. Volume 6:Issue 6(2018)
• Page Start: 314
• Page End: 320
• Publication Date: 2018-06-03
• Subjects: Upconverting nanophosphors -- Mn2+-doped NaYF4:Yb3+ -- Er3+ -- quantum dot-sensitized solar cells -- power conversion efficiency; Materials science -- Research -- Periodicals; Biomedical materials -- Research -- Periodicals; Composite materials -- Research -- Periodicals; Biomedical materials -- Research; Composite materials -- Research; Materials science -- Research; Periodicals; 620.1105
• DOI: 10.1080/21663831.2018.1447521
• Languages: English
• ISSNs: 2166-3831

Abstract

ABSTRACT: We herein provide a strategy to improve the solar cell performance by merging upconverting nanophosphors (UCNPs), Mn 2+, Yb 3+, Er 3+ tri-doped NaYF4 into TiO2 photoanodes of quantum dot-sensitized solar cell (QDSSCs). The best performance was achieved at the UCNPs content of 8 wt% based on the systematic investigation of the power conversion efficiency (PCE) performance dependent on UCNPs amount. The short-circuit photocurrent ( J sc ) (21.30 mA cm −2 ) and open circuit photovoltage ( V oc ) (0.54 V) of QDSSC were obviously improved compared with those of pure TiO2 photoanode ( J sc of 14.67 mA cm −2, V oc of 0.48 V) under one sun illumination, resulting in a 42.6% enhancement in PCE. Impact statement The short-circuit photocurrent ( J sc ) (21.30 mA cm −2 ) and open circuit photovoltage ( V oc ) (0.54 V) of QDSSC using the upconverting nanophosphors incorporated TiO2 photoelectrodes were remarkably improved under one sun illumination, resulting in a 42.6% enhancement in power conversion efficiency. GRAPHICAL ABSTRACT: