Photochemical performance of ZnO nanostructures in dye sensitized solar cells

Partha Pratim Das; Soumita Mukhopadhyay; Shruti A. Agarkar; Arpita Jana; P. Sujatha Devi

doi:10.1016/j.solidstatesciences.2015.08.014

Photochemical performance of ZnO nanostructures in dye sensitized solar cells

Partha Pratim Das, Soumita Mukhopadhyay, Shruti A. Agarkar, Arpita Jana, P. Sujatha Devi^*

^*Corresponding author for this work

Department of Chemistry, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

In this work, the photoconversion efficiencies of ZnO having diverse microstructures and structural defects have been investigated. A conversion efficiency of 1.38% was achieved for the DSSCs fabricated with as prepared ZnO nanorods having minimum vacancy defects and a favourable one dimensional directional pathway for electron conduction. The DSSCs fabricated with ZnO nanoparticles exhibited relatively low conversion efficiency of 1.004% probably due to multiple trapping/detrapping phenomena within the grain boundaries and ZnO flowers though exhibited a high dye adsorption capability exhibited the lowest conversion efficiency of 0.59% due to a high concentration of structural defects. Based on the experimental evidences, we believe that the type of defects and their concentrations are more important than shape in controlling the overall performance of ZnO based DSSCs.

Original language	English
Pages (from-to)	237-243
Number of pages	7
Journal	Solid State Sciences
Volume	48
DOIs	https://doi.org/10.1016/j.solidstatesciences.2015.08.014
Publication status	Published - 05-10-2015

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

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title = "Photochemical performance of ZnO nanostructures in dye sensitized solar cells",

abstract = "In this work, the photoconversion efficiencies of ZnO having diverse microstructures and structural defects have been investigated. A conversion efficiency of 1.38\% was achieved for the DSSCs fabricated with as prepared ZnO nanorods having minimum vacancy defects and a favourable one dimensional directional pathway for electron conduction. The DSSCs fabricated with ZnO nanoparticles exhibited relatively low conversion efficiency of 1.004\% probably due to multiple trapping/detrapping phenomena within the grain boundaries and ZnO flowers though exhibited a high dye adsorption capability exhibited the lowest conversion efficiency of 0.59\% due to a high concentration of structural defects. Based on the experimental evidences, we believe that the type of defects and their concentrations are more important than shape in controlling the overall performance of ZnO based DSSCs.",

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AU - Das, Partha Pratim

AU - Mukhopadhyay, Soumita

AU - Agarkar, Shruti A.

AU - Jana, Arpita

AU - Devi, P. Sujatha

PY - 2015/10/5

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N2 - In this work, the photoconversion efficiencies of ZnO having diverse microstructures and structural defects have been investigated. A conversion efficiency of 1.38% was achieved for the DSSCs fabricated with as prepared ZnO nanorods having minimum vacancy defects and a favourable one dimensional directional pathway for electron conduction. The DSSCs fabricated with ZnO nanoparticles exhibited relatively low conversion efficiency of 1.004% probably due to multiple trapping/detrapping phenomena within the grain boundaries and ZnO flowers though exhibited a high dye adsorption capability exhibited the lowest conversion efficiency of 0.59% due to a high concentration of structural defects. Based on the experimental evidences, we believe that the type of defects and their concentrations are more important than shape in controlling the overall performance of ZnO based DSSCs.

AB - In this work, the photoconversion efficiencies of ZnO having diverse microstructures and structural defects have been investigated. A conversion efficiency of 1.38% was achieved for the DSSCs fabricated with as prepared ZnO nanorods having minimum vacancy defects and a favourable one dimensional directional pathway for electron conduction. The DSSCs fabricated with ZnO nanoparticles exhibited relatively low conversion efficiency of 1.004% probably due to multiple trapping/detrapping phenomena within the grain boundaries and ZnO flowers though exhibited a high dye adsorption capability exhibited the lowest conversion efficiency of 0.59% due to a high concentration of structural defects. Based on the experimental evidences, we believe that the type of defects and their concentrations are more important than shape in controlling the overall performance of ZnO based DSSCs.

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Photochemical performance of ZnO nanostructures in dye sensitized solar cells

Abstract

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