High-performance and low platinum loading electrodeposited-Pt counter electrodes for dye-sensitized solar cells

Autor:	Che-Yu Lin, Tzu-Chien Wei, Chi-Chao Wan, Jeng-Yu Lin
Rok vydání:	2011
Předmět:	Auxiliary electrode Chemistry Scanning electron microscope General Chemical Engineering Analytical chemistry chemistry.chemical_element Electrochemistry Dielectric spectroscopy Field emission microscopy Dye-sensitized solar cell Chemical engineering Electrode Platinum
Zdroj:	Electrochimica Acta. 56:1941-1946
ISSN:	0013-4686
DOI:	10.1016/j.electacta.2010.11.084
Popis:	This study demonstrates platinum (Pt) counter electrodes with low charge-transfer resistance (Rct), low Pt loading and high active surface area can be obtained within 30 s by using the direct-current deposition in the presence of 3-(2-aminoethylamino)propyl-methyldimethoxysilane (Me-EDA-Si) as an additive. The addition of appropriate Me-EDA-Si can not only enhance the current efficiency but also inhibit the growth of semicircle-like grains, thus resulting in Pt electrode with high active surface area. Consequently, the dye-sensitized solar cells (DSSCs) fabricated with so-prepared Pt electrodes exhibited cell efficiency of 7.39% while 0.01 vol% Me-EDA-Si was added, which is much superior to that with sputtered-Pt electrodes under the same assembly conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7f703d418beb0d938055e5291f0ed98c https://doi.org/10.1016/j.electacta.2010.11.084 Zobrazit plný text záznamu Full Text from ScienceDirect