Effects of meta or para connected organic dyes for dye-sensitized solar cell

被引：41

作者：

Jiao, Yunfei ^{[1
]}

Mao, Le ^{[2
]}

Liu, Shuaishuai ^{[1
]}

Tan, Tianwen ^{[2
]}

Wang, Donglin ^{[1
]}

Cao, Dapeng ^{[2
]}

Mi, Baoxiu ^{[1
]}

Gao, Zhiqiang ^{[2
]}

Huang, Wei ^{[1
,2
,3
]}

机构：

[1] NUPT, IAM, Jiangsu Key Lab Biosensors KLB, KLOEID, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China

[2] NUPT, Sch Mat Sci & Engn, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Jiangsu Engn Ctr Plate Displays & Solid State Lig, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China

[3] NPU, SIFE, 127 West Youyi Rd, Xian 710072, Shaanxi, Peoples R China

来源：

DYES AND PIGMENTS | 2018年 / 158卷

基金：

中国国家自然科学基金;

关键词：

Dye-sensitized solar cell; Metal-free organic dyes; D-pi-A; Phenothiazine; Rhodanine acetic acid; D-PI-A; ELECTRON-ACCEPTOR; PERFORMANCE; EFFICIENCY; NANOPARTICLES; MOIETY; DONOR; LAYER; OXIDE;

D O I：

10.1016/j.dyepig.2018.05.037

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Two novel phenothiazine-based organic dyes have been designed and synthesized as sensitizers for dye-sensitized solar cell (DSSC). In these dyes, we have employed carbazole as donor, phenothiazine as pi-bridge, and rhodanine acetic acid as acceptor. For comparison, a benzene group has been introduced as the pi-linker between carbazole donor and phenothiazine pi-bridge with meta or para connection mode. Using the dye with the para connected method, the DSSC devices exhibited higher power conversion efficiency of 5.57% than those based on dye with meta-connection mode (4.56%). The improved performance mainly came from better short-circuit photocurrent current. Photophysical, electrochemical, theoretical calculations and electrochemical impedance spectroscopy have been further investigated to disclose corresponding device mechanisms.

引用

页码：165 / 174

页数：10