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Title: Flower-shaped ZnO nanocrystallite aggregates synthesized through a template-free aqueous solution method for dye-sensitized solar cells

Abstract

Hierarchically structured flower-shaped aggregates composed of ZnO nanocrystals were synthesized through a template-free aqueous solution method. The synthesized nanocrystallite aggregates were demonstrated to be promising photoanode materials for dye-sensitized solar cells (DSSCs). Compared with commercially available ZnO nanoparticles (ZnONPs), the flower-like aggregates (ZnONFs), each having an overall dimension of 400–600 nm, exhibited similar dye loading but higher light-scattering ability, which led to a substantial increase in the light-harvesting efficiency of resulting cells. The unique morphology of ZnONFs also boosted the absorbed photon-to-electric current generation efficiency. Consequently, DSSCs constructed from ZnONFs showed significantly improved photocurrent and achieved an overall conversion efficiency of 4.42%, which was 47% higher than that attained by ZnONP-based cells.

Authors:
 [1];  [2]; ;  [1]
  1. Institute of Organic and Polymeric Materials, National Taipei University of Technology, 1 Sec. 3, Zhongxiao E. Rd., Taipei 10608, Taiwan (China)
  2. (China)
Publication Date:
OSTI Identifier:
22395682
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AQUEOUS SOLUTIONS; COMPARATIVE EVALUATIONS; EFFICIENCY; ELECTRIC CURRENTS; LIGHT SCATTERING; LOADING; MORPHOLOGY; NANOPARTICLES; NANOSTRUCTURES; PHOTONS; SOLAR CELLS; VISIBLE RADIATION; ZINC OXIDES

Citation Formats

Chang, Wei-Chen, E-mail: changpeter@iner.gov.tw, Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, 1000 Wenhua Rd., Chiaan Village, Lungtan, Taoyuan 325, Taiwan, Chen, Hung-Shuo, and Yu, Wan-Chin, E-mail: wanchin@ntut.edu.tw. Flower-shaped ZnO nanocrystallite aggregates synthesized through a template-free aqueous solution method for dye-sensitized solar cells. United States: N. p., 2015. Web. doi:10.1063/1.4905567.
Chang, Wei-Chen, E-mail: changpeter@iner.gov.tw, Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, 1000 Wenhua Rd., Chiaan Village, Lungtan, Taoyuan 325, Taiwan, Chen, Hung-Shuo, & Yu, Wan-Chin, E-mail: wanchin@ntut.edu.tw. Flower-shaped ZnO nanocrystallite aggregates synthesized through a template-free aqueous solution method for dye-sensitized solar cells. United States. doi:10.1063/1.4905567.
Chang, Wei-Chen, E-mail: changpeter@iner.gov.tw, Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, 1000 Wenhua Rd., Chiaan Village, Lungtan, Taoyuan 325, Taiwan, Chen, Hung-Shuo, and Yu, Wan-Chin, E-mail: wanchin@ntut.edu.tw. Mon . "Flower-shaped ZnO nanocrystallite aggregates synthesized through a template-free aqueous solution method for dye-sensitized solar cells". United States. doi:10.1063/1.4905567.
@article{osti_22395682,
title = {Flower-shaped ZnO nanocrystallite aggregates synthesized through a template-free aqueous solution method for dye-sensitized solar cells},
author = {Chang, Wei-Chen, E-mail: changpeter@iner.gov.tw and Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, 1000 Wenhua Rd., Chiaan Village, Lungtan, Taoyuan 325, Taiwan and Chen, Hung-Shuo and Yu, Wan-Chin, E-mail: wanchin@ntut.edu.tw},
abstractNote = {Hierarchically structured flower-shaped aggregates composed of ZnO nanocrystals were synthesized through a template-free aqueous solution method. The synthesized nanocrystallite aggregates were demonstrated to be promising photoanode materials for dye-sensitized solar cells (DSSCs). Compared with commercially available ZnO nanoparticles (ZnONPs), the flower-like aggregates (ZnONFs), each having an overall dimension of 400–600 nm, exhibited similar dye loading but higher light-scattering ability, which led to a substantial increase in the light-harvesting efficiency of resulting cells. The unique morphology of ZnONFs also boosted the absorbed photon-to-electric current generation efficiency. Consequently, DSSCs constructed from ZnONFs showed significantly improved photocurrent and achieved an overall conversion efficiency of 4.42%, which was 47% higher than that attained by ZnONP-based cells.},
doi = {10.1063/1.4905567},
journal = {Applied Physics Letters},
number = 1,
volume = 106,
place = {United States},
year = {Mon Jan 05 00:00:00 EST 2015},
month = {Mon Jan 05 00:00:00 EST 2015}
}
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