Novel Chemical Route for Deposition of Cu2ZnSnS4 Photovoltaic Absorbers
| Autor: | C. Calderón, Gerardo Gordillo, R.A. Becerra |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
02 engineering and technology 01 natural sciences 010309 optics symbols.namesake chemistry.chemical_compound X-ray photoelectron spectroscopy 0103 physical sciences XPS Deposition (phase transition) CZTS Thin film Raman Precipitation (chemistry) diffusion membrane assisted CBD General Chemistry 021001 nanoscience & nanotechnology Chemical engineering chemistry Cu2ZnSnS4 thin films solar cells symbols 0210 nano-technology Raman spectroscopy Layer (electronics) Chemical bath deposition |
| Zdroj: | Journal of the Brazilian Chemical Society, Volume: 29, Issue: 3, Pages: 649-658, Published: MAR 2018 Journal of the Brazilian Chemical Society v.29 n.3 2018 Journal of the Brazilian Chemical Society Sociedade Brasileira de Química (SBQ) instacron:SBQ |
| Popis: | This work reports results of a study carried out to optimize the preparation conditions of Cu2ZnSnS4 (CZTS) thin films grown by sequential deposition of Cu2SnS3 (CTS) and ZnS layers, where the Cu2SnS3 compound was grown using a novel procedure consisting of simultaneous precipitation of Cu2S and SnS2 performed by diffusion membrane assisted chemical bath deposition (CBD) technique. The precipitation across the diffusion membranes allows achieving moderate control of release of metal ions into the work solution favoring the heterogeneous growth mainly through an ion-ion mechanism. Through a parameters study, conditions were found to grow Cu2SnS3 thin films which were used as precursors for the formation of Cu2ZnSnS4 films. The formation of CZTS thin films grown in the Cu2ZnSnS4 phase was verified through measurements of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Solar cells with efficiencies of 4.9% were obtained using CZTS films prepared by membrane assisted CBD technique as absorber layer. |
| Databáze: | OpenAIRE |
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