Tandem structured spectrally selective coating layer of copper oxide nanowires combined with cobalt oxide nanoparticles

Title
Tandem structured spectrally selective coating layer of copper oxide nanowires combined with cobalt oxide nanoparticles
Authors
천동원Tae Kyoung KimBryan VanSadersJaeyun MoonTaewoo KimChin Hung LiuJirapon KhamwannahDuyoung ChoiAlireza KargarRenkun ChenZhaowei LiuSungho Jin
Keywords
Tandemstructure; Spectrally selective coating (SSC) layer; Copper oxidenano-wires; Cobalt oxidenano-particles; Solar absorption; Solar thermal
Issue Date
2015-01
Publisher
Nano energy
Citation
VOL 11-259
Abstract
Increasing the light absorption across the wide solar spectrum has important implications for applications in solar-thermal and photovoltaic energy conversion. Here, we report novel tandem structures combing two different materials with complementary optical properties and microstructures: copper oxide (CuO) nanowires (NWs) and cobalt oxide (Co3O4) nanoparticles (NPs). Copper oxide NWs of 100-200 nm in diameter and 5 pm long are grown thermally on copper foil in air and cobalt oxide NPs of 100-200 nm in diameter are synthesized hydrothermally. Tandem structures of spectrally selective coating (SSC) layer are built with three different methods: spray-coating, dip-coating of cobalt oxide NPs into copper oxide NWs forest, and transferring of copper oxide NWs layer onto cobalt oxide NPs layer. The tandem-structured SSC layers fabricated from the spray-coating, dip-coating and transferring methods exhibit figure of merit (FOM) values of 0.875, 0.892 and 0.886, respectively, which are significantly higher than that of the starting copper oxide NWs (FOM=0.858) and cobalt oxide NPs (FOM=0.853). Our results demonstrate the efficacy of using novel tandem structures for enhanced light absorption of solar spectrum, which will find broad applications in solar energy conversion.
URI
http://pubs.kist.re.kr/handle/201004/67314
ISSN
2211-2855
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