Comparative study of CdTe sources used for deposition of CdTe thin films by close spaced sublimation technique
| Autor: | Leila Rosa de Oliveira Cruz, Carlos Luiz Ferreira, Vivienne Denise Falcão, Wagner Anacleto Pinheiro |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Materials science
Mechanical Engineering Pellets Thermal contact chemistry.chemical_element Nanotechnology CdTe Condensed Matter Physics Cadmium telluride photovoltaics Chemical engineering chemistry thin films Mechanics of Materials Molybdenum lcsh:TA401-492 General Materials Science Wafer Sublimation (phase transition) lcsh:Materials of engineering and construction. Mechanics of materials Crystallite Thin film CSS |
| Zdroj: | Materials Research, Volume: 9, Issue: 1, Pages: 47-49, Published: MAR 2006 Materials Research, Vol 9, Iss 1, Pp 47-49 (2006) Materials Research v.9 n.1 2006 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
| Popis: | Unlike other thin film deposition techniques, close spaced sublimation (CSS) requires a short source-substrate distance. The kind of source used in this technique strongly affects the control of the deposition parameters, especially the deposition rate. When depositing CdTe thin films by CSS, the most common CdTe sources are: single-crystal or polycrystalline wafers, powders, pellets or pieces, a thick CdTe film deposited onto glass or molybdenum substrate (CdTe source-plate) and a sintered CdTe powder. In this work, CdTe thin films were deposited by CSS technique from different CdTe sources: particles, powder, compact powder, a paste made of CdTe and propylene glycol and source-plates (CdTe/Mo and CdTe/glass). The largest deposition rate was achieved when a paste made of CdTe and propylene glycol was used as the source. CdTe source-plates led to lower rates, probably due to the poor heat transmission, caused by the introduction of the plate substrate. The results also showed that compacting the powder the deposition rate increases due to the better thermal contact between powder particles. |
| Databáze: | OpenAIRE |
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