2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 11: Physics, Advanced/Multifunctional Materials, Composite, Quasi-crystals, Coating
| Editors: | Kongoli F, Marquis F, Lu L, Xia H, Masset P, Rokicki P |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 180 pages |
| ISBN: | 978-1-987820-56-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Bifacial Quasi-solid-state Dye-sensitized Solar Cells Based on Ag2S Quantum Dots Modified Transparent Polyaniline Counter Electrode
Jing Gao1; Ying Yang1; Xueyi Guo1;1CENTRAL SOUTH UNIVERSITY, Changsha, China;
Type of Paper: Regular
Id Paper: 398
Topic: 21
Abstract:
Many kinds of rare and precious metals such as Au, Ag and Pt are generated as by-products in the treatment process of copper anode slime, which makes the downstream applications and new products of these noble metals an important way to achieve high-value utilization. In this paper, we used AgNO3 and Na2S，9H2O as precursor solutions to synthesize Ag2S quantum dots (QDs) onto the transparent polyaniline counter electrodes (PANI CEs) by successive ionic layer adsorption and reaction (SILAR) method. The composite film of PANI/Ag2S showed an improved light absorption at 200-800 nm, indicating the higher light harvesting efficiency of the bifacial quasi-solid-state dye-sensitized solar cells (DSSCs). And the cyclic voltammograms and Tafel plots indicated that the PANI/Ag2S film exhibited an enhanced electrocatalytic activity for I3- reduction. The IMPS/VS results showed that the PANI/Ag2S CE based DSSC possesses enhanced electron transfer process. Thus, the bifacial DSSC fabricated with PANI/Ag2S CE showed an improved power conversion efficiency up to 6.25% under both front and rear sides illumination, which was higher than that of DSSC assembled with pure PANI CE (5.57%).