Synthesis of self-light-scattering wrinkle structured ZnO photoanode by sol-gel method for dye-sensitized solar cells

Raj, Justin C and Karthick, SN and Hemalatha, KV and Kim, Soo-Kyoung and Kim, Byung Chul and Yu, Kook-Hyun and Kim, Hee-Je (2014) Synthesis of self-light-scattering wrinkle structured ZnO photoanode by sol-gel method for dye-sensitized solar cells. In: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 116 (2). pp. 811-816.

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Abstract

A special morphological zinc oxide (ZnO) photoanode for dye-sensitized solar cell was fabricated by simple sol-gel drop casting technique. This film shows a wrinkled structure resembling the roots of banyan tree, which acts as an effective self scattering layer for harvesting more visible light and offers an easy transport path for photo-injected electrons. These ZnO electrode of low thickness (similar to 5 mu m) gained an enhanced short-circuit current density of 6.15 mA/cm(2), open-circuit voltage of 0.67 V, fill factor of 0.47 and overall conversion efficiency of 1.97 % under 1 sun illumination. This shows a high conversion efficiency and a superior performance than that of ZnO nanoparticle-based photoanode (eta similar to 1.13 %) of high thickness (similar to 8 mu m).

Item Type:	Journal Article
Publication:	APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Additional Information:	Copy right for this article belongs to the SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	22 Aug 2014 09:18
Last Modified:	22 Aug 2014 09:18
URI:	http://eprints.iisc.ac.in/id/eprint/49650

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