Electron transport properties of TiO2 shell on Al2O3 core in dye-sensitized solar cells

doi:10.1088/1674-1056/27/1/017804

中国物理B ›› 2018, Vol. 27 ›› Issue (1): 17804-017804.doi: 10.1088/1674-1056/27/1/017804

所属专题： SPECIAL TOPIC — New generation solar cells

• SPECIAL TOPIC—Non-equilibrium phenomena in soft matters • 上一篇下一篇

Electron transport properties of TiO₂ shell on Al₂O₃ core in dye-sensitized solar cells

Dongmei Xie(解东梅), Xiaowen Tang(唐小文), Yuan Lin(林原), Pin Ma(马品), Xiaowen Zhou(周晓文)

1 Beijing National laboratory for Molecular Sciences, Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2017-09-30 修回日期:2017-11-13 出版日期:2018-01-05 发布日期:2018-01-05
通讯作者: Yuan Lin E-mail:linyuan@iccas.ac.cn
基金资助:
Project supported by the National Materials Genome Project of China (Grant No. 2016YFB0700600) and the National Natural Science Foundation of China (Grant No. 51673204).

Electron transport properties of TiO₂ shell on Al₂O₃ core in dye-sensitized solar cells

Dongmei Xie(解东梅)^1,2, Xiaowen Tang(唐小文)^1,2, Yuan Lin(林原)^1,2, Pin Ma(马品)^1,2, Xiaowen Zhou(周晓文)^1,2

1 Beijing National laboratory for Molecular Sciences, Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China

Received:2017-09-30 Revised:2017-11-13 Online:2018-01-05 Published:2018-01-05
Contact: Yuan Lin E-mail:linyuan@iccas.ac.cn
Supported by:
Project supported by the National Materials Genome Project of China (Grant No. 2016YFB0700600) and the National Natural Science Foundation of China (Grant No. 51673204).

摘要/Abstract

摘要： The performance of dye-sensitized solar cells (DSSCs) is strongly affected by the properties of semiconductor nanoparticles. In this work, we used TiO₂ particles prepared by TiCl₄ hydrolysis n times on Al₂O₃ films (A/T(n)), and investigated morphology, photoelectric, and electron transport properties of A/T(n). The TiO₂ shell was composed of 10-20 nm nanoparticles and the number of nanoparticles increased with increasing TiCl₄ treatment times. The highest photoelectric conversion efficiency of 3.23% was obtained as A/T(4). IMPS results indicated that electron transport rate was high enough to conduct current, and was not the dominating effect to limit the J_sc. J_sc was mainly determined by dye loading on TiO₂ and the interconnection of TiO₂. These may provide a new strategy for preparing semiconductor working electrodes for DSSC.

关键词: dye-sensitized solar cell, electron transportation, core-shell structure, intensity-modulated photocurrent spectroscopy

Abstract: The performance of dye-sensitized solar cells (DSSCs) is strongly affected by the properties of semiconductor nanoparticles. In this work, we used TiO₂ particles prepared by TiCl₄ hydrolysis n times on Al₂O₃ films (A/T(n)), and investigated morphology, photoelectric, and electron transport properties of A/T(n). The TiO₂ shell was composed of 10-20 nm nanoparticles and the number of nanoparticles increased with increasing TiCl₄ treatment times. The highest photoelectric conversion efficiency of 3.23% was obtained as A/T(4). IMPS results indicated that electron transport rate was high enough to conduct current, and was not the dominating effect to limit the J_sc. J_sc was mainly determined by dye loading on TiO₂ and the interconnection of TiO₂. These may provide a new strategy for preparing semiconductor working electrodes for DSSC.

Key words: dye-sensitized solar cell, electron transportation, core-shell structure, intensity-modulated photocurrent spectroscopy

中图分类号: (Porous materials)

78.55.Mb

72.20.Jv (Charge carriers: generation, recombination, lifetime, and trapping) 84.60.Jt (Photoelectric conversion) 88.40.H- (Solar cells (photovoltaics))

解东梅, 唐小文, 林原, 马品, 周晓文. Electron transport properties of TiO₂ shell on Al₂O₃ core in dye-sensitized solar cells[J]. 中国物理B, 2018, 27(1): 17804-017804.

Dongmei Xie(解东梅), Xiaowen Tang(唐小文), Yuan Lin(林原), Pin Ma(马品), Xiaowen Zhou(周晓文). Electron transport properties of TiO₂ shell on Al₂O₃ core in dye-sensitized solar cells[J]. Chin. Phys. B, 2018, 27(1): 17804-017804.

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Electron transport properties of TiO₂ shell on Al₂O₃ core in dye-sensitized solar cells

Electron transport properties of TiO₂ shell on Al₂O₃ core in dye-sensitized solar cells

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