Novel indeno[2,1-b]carbazole donor-based organic dyes for dye-sensitized solar cells,Photochemical & Photobiological Sciences

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Novel indeno[2,1-b]carbazole donor-based organic dyes for dye-sensitized solar cells
Photochemical & Photobiological Sciences ( IF 2.7 ) Pub Date : 2018-02-12 00:00:00 , DOI: 10.1039/c7pp00350a
Yan Xie _{1,

2,

3,

4} , Jianrong Gao _{4,

5,

6,

7} , Shaozheng Zhang _{1,

2,

3,

4} , liang Wu _{4,

5,

6,

7}

Affiliation

Four novel metal-free organic dyes (CFB1, CFB2, CFT1 and CFT2) based on indeno[2,1-b]carbazole donors were synthesized and their absorption spectra, photovoltaic performances, and electrochemical properties were evaluated. The differences in linking mode and the number of thiophene units led to variations in absorptivity, electron injection efficiency, and charge recombination. Among the four dyes, CFT1 with a π-bridge at the indeno[2,1-b]carbazole ring and a bridge of thiophene showed the best photovoltaic performance with a J_SC of 12.34 mA cm⁻², V_OC of 0.71 V, and FF of 0.68, corresponding to an overall conversion efficiency η of 5.97% under standard AM 1.5 G irradiation.

中文翻译：

用于染料敏化太阳能电池的新型基于茚并[2,1 - b ]咔唑供体的有机染料

合成了基于茚并[ 2,1 - b ]咔唑供体的四种新型无金属有机染料（CFB1，CFB2，CFT1和CFT2），并对其吸收光谱，光电性能和电化学性能进行了评价。连接方式和噻吩单元数的差异导致吸收率，电子注入效率和电荷重组的变化。在这四种染料中，在茚并[ 2,1 - b ]咔唑环上有一个π桥和一个噻吩桥的CFT1表现出最佳的光伏性能，其J _SC为12.34 mA cm ^-2，V _OCFF为0.71 V，FF为0.68，相当于在标准AM 1.5 G辐射下的总转换效率η为5.97％。

更新日期：2018-02-12

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