daohang fenxiangbox searchbox qikanlogonew daohangnew searchboxnew navrightzone footerzone paper
中
Home > Journals > ACS Energy Letters
‹ Previous Article Next Article ›

13.6% Efficient Organic Dye-Sensitized Solar Cells by Minimizing Energy Losses of the Excited State AITranslate

Li Zhang; Xichuan Yang; Weihan Wang; Gagik G. Gurzadyan; Jiajia Li; Xiaoxin Li; Jincheng An; Ze Yu; Haoxin Wang; Bin Cai; Anders Hagfeldt; Licheng Sun;
Dalian University of Technology (DUT); Dalian University of Technology (DUT); Dalian University of Technology (DUT); Dalian University of Technology (DUT); Dalian University of Technology (DUT); Dalian University of Technology (DUT); Dalian University of Technology (DUT); Dalian University of Technology (DUT); Dalian University of Technology (DUT); Dalian University of Technology (DUT); Institute of Chemical Sciences and Engineering; Dalian University of Technology (DUT)
AITranslate
Publisher: ACS
Share Citation Information Add to Favorites

    Scan to share on WeChat or Moments

Use WeChat scan.
Share with WeChat friends or Moments

Abstract AITranslate

The electron-injection energy losses of dye-sensitized solar cells (DSSCs) are among the fundamental problems hindering their successful breakthrough application. Two triazatruxene (TAT)-based sensitizers, with one containing a flexible Z-type double bond and another a rigid single bond, coded as ZL001 and ZL003, respectively, have been synthesized and applied in DSSCs to probe the energy losses in the process of electron injection. Using time-resolved laser spectroscopic techniques in the kinetic study, ZL003 with the rigid single bond promotes much faster electron injection into the conductive band of TiO2 especially in the locally excited state (hot injection), which leads to higher electron density in TiO2 and a higher Voc. The devices based on ZL003 exhibited a champion power conversion efficiency (PCE) of 13.6% with Voc = 956 mV, Jsc = 20.73 mA cm–2, and FF = 68.5%, which are among the highest recorded results to date on single dye-sensitized DSSCs. An independent certified PCE of 12.4% has been obtained for devices based on ZL003.

KeyWords AITranslate

No data

Basic Information:

DOI：https://doi.org/10.1021/acsenergylett.9b00141

Chinese Library Classification Number:

Citation Information:

The electron-injection energy losses of dye-sensitized solar cells (DSSCs) are among the fundamental problems hindering their successful breakthrough application. Two triazatruxene (TAT)-based sensitizers, with one containing a flexible Z-type double bond and another a rigid single bond, coded as ZL001 and ZL003, respectively, have been synthesized and applied in DSSCs to probe the energy losses in the process of electron injection. Using time-resolved laser spectroscopic techniques in the kinetic study, ZL003 with the rigid single bond promotes much faster electron injection into the conductive band of TiO2 especially in the locally excited state (hot injection), which leads to higher electron density in TiO2 and a higher Voc. The devices based on ZL003 exhibited a champion power conversion efficiency (PCE) of 13.6% with Voc = 956 mV, Jsc = 20.73 mA cm–2, and FF = 68.5%, which are among the highest recorded results to date on single dye-sensitized DSSCs. An independent certified PCE of 12.4% has been obtained for devices based on ZL003.

quote

GB/T 7714-2015 [1] Li Zhang, Xichuan Yang, Weihan Wang, et al. ACS Energy Letters, 2019(4). DOI:10.1021/acsenergylett.9b00141.
MLA [1] Li Zhang, et al., ACS Energy Letters, no. 4, 2019, https://doi.org/10.1021/acsenergylett.9b00141.
APA [1] Li Zhang, Xichuan Yang, Weihan Wang, Gagik G. Gurzadyan, Jiajia Li, Xiaoxin Li, Jincheng An, Ze Yu, Haoxin Wang, Bin Cai, Anders Hagfeldt, & Licheng Sun. (2019). ACS Energy Letters(4). https://doi.org/10.1021/acsenergylett.9b00141
IEEE [1] Li Zhang, Xichuan Yang, Weihan Wang, Gagik G. Gurzadyan, Jiajia Li, Xiaoxin Li, Jincheng An, Ze Yu, Haoxin Wang, Bin Cai, Anders Hagfeldt, and Licheng Sun, ACS Energy Letters, no. 4, 2019, doi: 10.1021/acsenergylett.9b00141.