Title:
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CuGaS2 and CuGaS2–ZnS porous layers from solution-processed nanocrystals
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Author:
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Berestok, Taisiia; Guardia, Pablo; Estradé, Sònia; Llorca Piqué, Jordi; Peiró, Francesca; Cabot Codina, Andreu; Brock, Stephanie L.
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia |
Abstract:
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The manufacturing of semiconducting films using solution-based approaches is considered a low cost alternative to vacuum-based thin film deposition strategies. An additional advantage of solution processing methods is the possibility to control the layer nano/microstructure. Here, we detail the production of mesoporous CuGaS2 (CGS) and ZnS layers from spin-coating and subsequent cross-linking through chalcogen-chalcogen bonds of properly functionalized nanocrystals (NCs). We further produce NC-based porous CGS/ZnS bilayers and NC-based CGS–ZnS composite layers using the same strategy. Photoelectrochemical measurements are used to demonstrate the efficacy of porous layers, and particularly the CGS/ZnS bilayers, for improved current densities and photoresponses relative to denser films deposited from as-produced NCs. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria química -Aerogels -Xerogels -Porous materials -Nanostructured materials -aerogel -xerogel -porous layer -CuGaS2/ZnS -photoresponse -nanomaterial -Aerogels -Materials porosos -Materials nanoestructurats |
Rights:
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Document type:
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Article - Published version Article |
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