Zeolitic-imidazolate-framework (ZIF-8)/PEDOT:PSS composite counter electrode for low cost and efficient dye-sensitized solar cells

被引：24
作者：
Ahmed, Abdelaal S. A. [1 ,2 ]
Xiang, Wanchun [1 ]
Saana Amiinu, Ibrahim [3 ]
Zhao, Xiujian [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architecture, Luoshi Rd, Wuhan 430070, Hubei, Peoples R China
[2] Al Azhar Univ, Fac Sci, Dept Chem, Assiut 71524, Egypt
[3] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Luoshi Rd, Wuhan 430070, Hubei, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2018年 / 42卷 / 21期
基金：
中国国家自然科学基金;
关键词：
METAL-ORGANIC FRAMEWORKS; OXYGEN REDUCTION ELECTROCATALYST; NANOPOROUS CARBON; FTIR SPECTROSCOPY; REDOX MEDIATOR; TIO2; PERFORMANCE; CATALYSTS; FILMS; NANOCOMPOSITES;
D O I：
10.1039/c8nj03192d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
ZIF-8 polystyrenesulfonate-doped poly(3,4-ethylenedioxythiophene) (ZIF-8/PEDOT:PSS) is prepared and used as the alternative counter electrode (CE) for dye-sensitized solar cells (DSSCs) based on I-/I-3(-) and Co2+/Co3+ redox mediators. It is found that incorporation of ZIF-8 in PEDOT:PSS results in boosting the catalytic activity and charge transferability of the ZIF-8/PEDOT:PSS composite toward the reduction of I-3(-) and Co3+ redox mediators compared with pristine PEDOT:PSS. The assembled DSSCs based on the (3%) ZIF-8/PEDOT:PSS composite CE in iodide-based cells yield 7.02% photoelectric conversion efficiency (PCE) which is comparable to that of the conventional platinum CE (PCE = 7.24%) and better than that of the pristine PEDOT:PSS (PCE = 4.00%) CE. In addition, the (1%) ZIF-8/PEDOT:PSS CE shows a PCE of 6.84% for cobalt-based DSSCs which is comparable to that of Pt (PCE = 7.56%).
引用
收藏
页码：17303 / 17310
页数：8
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