High efficiency ultraviolet photovoltaic cells based on ZnO-C60 core-shell QDs with organic-inorganic multilayer structure

Title
High efficiency ultraviolet photovoltaic cells based on ZnO-C60 core-shell QDs with organic-inorganic multilayer structure
Authors
손동익권병욱양정도박동희Basavaraj최원국
Keywords
ZnO-C60; UV photovoltaic; queching effect; nano carbons; photon conversion efficiencey
Issue Date
2012-01
Publisher
Journal of materials chemistry
Citation
VOL 22, NO 3, 816-819
Abstract
We report on the successful conjugation of C60 molecules on the surface of ZnO quantum dots (QDs) and their application in multilayer structured ultraviolet (UV) photovoltaic (PV) devices. In situ growth of C60 on the surface of ZnO QDs with a core–shell structure was realized via a mild solution-process method, which resulted in an improvement in photo-induced charge separation and transport of carriers to the collecting electrodes in a fabricated device. The conjugation of the C60 with ZnO QDs leads to a PL quenching of about 99.8%, which can be attributed to an efficient transfer of photo-induced electrons from the ZnO QDs to the C60 through a Zn–O–C chemical bonding. UV PV cells with ZnO–C60 core– shell QDs as an active layer and fabricated through an all layer simple chemical method exhibit high power conversion efficiency as much as about 3.02%.
URI
http://pubs.kist.re.kr/handle/201004/40985
ISSN
0959-9428
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE