Metal-free organic dyes with di(1-benzothieno)[3,2-b:2 ',3 '-d]pyrrole as a donor for efficient dye-sensitized solar cells: Effect of mono- and bi-anchors on photovoltaic performance
Metal-free organic dyes with di(1-benzothieno)[3,2-b:2 ',3 '-d]pyrrole as a donor for efficient dye-sensitized solar cells: Effect of mono- and bi-anchors on photovoltaic performance
复制标题
以二(1-苯并噻吩)[3,2-b:2',3'-d]吡咯为供体的无金属有机染料用于高效染料敏化太阳能电池：单锚和双锚对光伏性能的影响
DOI：
10.1016/j.dyepig.2019.02.003
复制
发表时间：
2019
影响因子：
4.5
通讯作者：
Cao Derong
中科院分区：
文献类型：
--
作者：
Wu Hanlun;Huang Zusheng;Hua Tao;Liao Chaoqiang;Meier Herbert;Tang Hao;Wang Lingyun;Cao Derong
Four novel metal-free organic dyesWL1a-bandWL2a-bcontaining di(1-benzothieno)[3,2-b:2′,3′-d]pyrrole (DBTP) as electron donor were synthesized and applied for dye-sensitized solar cells (DSSCs), whereDBTPwas firstly employed as a donor in the organic dyes. It has been demonstrated that the dyesWLwithDBTPas a donor show better photovoltaic performance than the reference dyePTZwith phenothiazine as a donor. In comparison withWL1a-bwith one cyanoacrylic acid as mono-anchor,WL2a-bwith two cyanoacrylic acids as bi-anchors show a broader light absorption on the TiO2film and higher molar extinction coefficients in solution, resulting in higher power conversion efficiency. Under standard global AM 1.5G solar light condition,WL2asensitized solar cell obtained a high power conversion efficiency of 8%. The results indicate that theDBTPunit can be applied as an effective electron donor andDBTP-based organic dye is a promising candidate for efficient DSSCs.
