Carbazole based D-A-π-A chromophores for dye sensitized solar cells: Effect of the side alkyl chain length on device performance

被引：21

作者：

Kiymaz, Deniz ^{[1
]}

Sezgin, Meryem ^{[2
]}

Sefer, Emre ^{[3
]}

Zafer, Ceylan ^{[1
]}

Koyuncu, Sermet ^{[3
,4
]}

机构：

[1] Ege Univ, Solar Energy Inst, TR-35040 Izmir, Turkey

[2] Canakkale Onsekiz Mart Univ, Dept Chem, TR-17020 Canakkale, Turkey

[3] Canakkale Onsekiz Mart Univ, Dept Chem Engn, Fac Engn, TR-17020 Canakkale, Turkey

[4] Canakkale Onsekiz Mart Univ, Dept Energy Resources & Management, TR-17020 Canakkale, Turkey

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 12期

关键词：

Donor-acceptor dyes; Alkyl side chain effect; Dye sensitized solar cells; PHOTOVOLTAIC PERFORMANCES; ORGANIC SENSITIZERS; ENERGY-LEVEL; COUMARIN DYE; EFFICIENT; ABSORPTION; POLYMERS; ACCEPTOR; UNIT;

D O I：

10.1016/j.ijhydene.2016.09.161

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of Carbazole based Donor-Acceptor-pi Bridge-Acceptor (D-A-pi-A) dyes that contain different alkyl side chains with different lengths have been synthesized. Electrochemical and optical properties of these dyes were demonstrated by impedance spectroscopy, cyclic voltammetry, UV-Vis absorption and fluorescence spectroscopy, respectively. Herein, we report PV performance of dye-sensitized solar cells depending on the molecular structure of the dyes in terms of comparison of alkyl chain length on the carbazole moiety using an ionic liquid based electrolyte under standard AM 1.5 illumination. The results demonstrate that the dye containing alkyl chain with 4C atoms exhibited better performance compared to alkyl chains with 2C, 6C and 12C atoms. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：8569 / 8575

页数：7

共 35 条

[1] Incorporating Benzotriazole Moiety to Construct D-A-π-A Organic Sensitizers for Solar Cells: Significant Enhancement of Open-Circuit Photovoltage with Long Alkyl Group [J].