CuGaS2 and CuGaS2–ZnS porous layers from solution-processed nanocrystals
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 prod...
| Authors: | ; ; ; ; ; ; |
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| Format: | Article |
| Publication date: | 2018 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/118333 |
| Online Access: | https://hdl.handle.net/2117/118333 https://dx.doi.org/10.3390/nano8040220 |
| Access Level: | Open access |
| Keyword: | Aerogels Xerogels Porous materials Nanostructured materials aerogel xerogel porous layer CuGaS2/ZnS photoresponse nanomaterial Materials porosos Materials nanoestructurats Àrees temàtiques de la UPC::Enginyeria química |
| Summary: | 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. |
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