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Tandem structured spectrally selective coating layer of copper oxide nanowires combined with cobalt oxide nanoparticles
Journal article   Open access   Peer reviewed

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

Tae Kyoung Kim, Bryan VanSaders, Jaeyun Moon, Taewoo Kim, Chin-Hung Liu, Jirapon Khamwannah, Dongwon Chun, Duyoung Choi, Alireza Kargar, Renkun Chen, …
Nano energy, v 11(C), pp 247-259
01 Jan 2015
url
https://doi.org/10.1016/j.nanoen.2014.10.018View
Published, Version of Record (VoR) Restricted

Abstract

Chemistry Chemistry, Physical Materials Science Materials Science, Multidisciplinary Nanoscience & Nanotechnology Physical Sciences Physics Physics, Applied Science & Technology Science & Technology - Other Topics Technology
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. (C) 2014 Elsevier Ltd. All rights reserved.

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Collaboration types
Domestic collaboration
Web of Science research areas
Chemistry, Physical
Materials Science, Multidisciplinary
Nanoscience & Nanotechnology
Physics, Applied
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