Plasma treated TiO2 aerogel nanostructures as photoanode material and its influence on the performance of quasi-solid dye-sensitized solar cells

被引：26
作者：
Alwin, S. [1 ]
Shajan, X. Sahaya [1 ]
Menon, Ranjini [2 ]
Nabhiraj, P. Y. [2 ]
Ananthapadmanabhan, P. V. [1 ]
机构：
[1] PSN Coll Engn & Technol, Ctr Sci & Appl Res, Tirunelveli 627152, Tamil Nadu, India
[2] Ctr Variable Energy Cyclotron, ECR Sect, Kolkata 700064, W Bengal, India
来源：
MATERIALS RESEARCH BULLETIN | 2017年 / 86卷
关键词：
Solar energy materials; Electron life time; Oxygen vacancies; Recombination; Anatase; SURFACE MODIFICATION; ENHANCED PERFORMANCE; THIN-FILMS; DEPOSITION; TITANIA; ELECTROLYTES; EFFICIENCY; DEFECTS; STATE;
D O I：
10.1016/j.materresbull.2016.10.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present study demonstrates the effect of oxygen plasma treatment on the structural, electrical properties of TiO2 aerogel nanostructure and the usefulness of these materials as DSSC. X-ray diffraction pattern indicates that long exposure of plasma on TiO2 aerogel initiates amorphous nature due to the generation of oxygen vacancies. High-Resolution Electron Microscope (HRTEM) and Selected Area Electron Diffraction (SAED) pattern also change in crystallinity after plasma treatment. The Intensity Modulated Photocurrent (IMPS) and Intensity Modulated Photovoltage Spectroscopic (IMVS) study shows that the time is increased after plasma treatment even in the presence of oxygen vacancies. The power efficiency of 10 min plasma treated TiO2 aerogel is enhanced to 3.94% due to low concentration vacancies which is beneficial for better electron transport through these surface vacant sites. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：201 / 208
页数：8
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