National Changhua University of Education Institutional Repository : Item 987654321/1552

English | 正體中文 | 简体中文 | Items with full text/Total items : 6507/11669
Visitors : 30042611 Online Users : 586

RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.

Scope Adv. Search

Login ‧ Upload ‧ Help ‧ About ‧ Administer

NCUEIR > College of Science > Department of Chemistry > Periodical Articles > Item 987654321/1552

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/1552

Title:	A Simple Strategy for Improving the Energy Conversion of Multilayered CdTe Quantum Dot-Sensitized Solar Cells
Authors:	Lan, G..-Y.;Yang, Z.;Lin, Y.-W.;Lin, Z.-H.;Liao, H.-Y.;Chang, H.-T.
Contributors:	化學系
Date:	2009
Issue Date:	2010-11-10T06:49:10Z
Abstract:	In this paper we describe the preparation of CdTe quantum dot-sensitized solar cells (QDSSCs). We coated FTO substrates with 21 nm-diameter TiO2 nanoparticles (NPs) and then immersed the system in Poly (dimethyldiallylammonium chloride) (PDDA) solution under ambient conditions. The treated substrates were then subjected to 3 nm-diameter CdTe NP solution at 100 C for various periods of times. To increase the degree of deposition and to obtain CdTe QDs of various sizes, we performed the coating of the CdTe QDs through three heating cycles for 24, 12, or 6 h. The as-prepared (TiO2)3-PDDA-(QDCdTe)3-FTO electrodes were then used to fabricate (TiO2)3-PDDA-(QDCdTe)3-FTO QDSSCs employing 1-ethyl-3-methylimidazolium thiocyanate incorporating 1.0MLiI and 0.1MI2 as electrolytes. The heating treatment allows the QDSSCs to harvest energy at a higher efficiency in the visible region of solar light. As a result, the as-prepared QDSSCs feature a high energy conversion efficiency (h ¼ 2.02%) and a high open-circuit photovoltage (Voc ¼ 850 mV) at 100% sunlight (AM1.5,100 mW/cm2).
Relation:	J. Mater. Chem., 19, 2349-2355
Appears in Collections:	[Department of Chemistry] Periodical Articles

Files in This Item:

There are no files associated with this item.