Aqueous Solution-Processed Multifunctional SnO2 Aggregates for Highly Efficient Dye-Sensitized Solar Cells

被引：10

作者：

Wang, Dongting ^{[1
]}

Liu, Shangheng ^{[1
]}

Shao, Mingfa ^{[1
]}

Li, Qiuyi ^{[1
]}

Gu, Yukun ^{[1
]}

Zhao, Jinghan ^{[1
]}

Zhang, Xianxi ^{[1
]}

Zhao, Jinsheng ^{[1
]}

Fang, Yuzhen ^{[1
]}

机构：

[1] Liaocheng Univ, Sch Chem & Chem Engn, Shandong Prov Key Lab Chem Energy Storage & Novel, Liaocheng 252059, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2018年 / 57卷 / 21期

基金：

中国国家自然科学基金;

关键词：

TIN OXIDE; HOLLOW MICROSPHERES; CHARGE-TRANSPORT; LOW-COST; PHOTOANODES; PERFORMANCE; GRAPHENE; NANOCRYSTALS; SPHERES; ELECTRODES;

D O I：

10.1021/acs.iecr.8b00039

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A room temperature based environmentally friendly aqueous solution synthesis route was developed to fabricate highly dispersed small SnO2 nanoparticles (3-5 nm) without the application of any pressurized reaction vessel or organic solvents. The subsequent treatments, that is, dialyzing and freezing, allow for the acquision of dual-function nanostructures with sheet-like feature and large aspect ratio except for the ordinary irregular aggregates. Dye-sensitized solar cells (DSCs) constructed with the resultant multifunctional SnO2 showed an outstanding photovoltaic conversion efficiency (PCE) of 6.92% and an unexpected J(sc) of 19.5 mA cm(-2) at an optimized thickness of 14.1 mu m. The excellent performance can be ascribed to the effective coordination of the favorable features (i.e., strong light scattering, large dye loading capability, and fast electron transport) via rational film thickness control as indicated by diffused reflectance spectra, UV-vis absorption spectra, and electrochemical impedance spectroscopy (EIS).

引用

页码：7136 / 7145

页数：10

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