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CdTe nanoparticles for the deposition of CdTe films using close spaced sublimation

: Schumm, B.; Althues, H.; Kaskel, S.


Journal of Crystal Growth 312 (2010), Nr.16-17, S.2449-2453
ISSN: 0022-0248
International Conference on Molecular Beam Epitaxy <11, 2000, Beijing>
Fraunhofer IWS ()
Cadmiumverbindung; chemisches Aufdampfen; Zwei-Sechs-Verbindung; Nanopartikel; Halbleiterdünnschicht; Sublimation; Wachstumsgeschwindigkeit; Cadmiumtellurid

In this work a nanostructured CdTe powder was applied as a source material for CdTe film deposition via Close Spaced Sublimation (CSS). Growth kinetics and the resulting film properties were studied and compared to the films deposited from a commercially available CdTe bulk powder as source. The nanostructured powder was synthesized by a solvothermal elemental reaction of Cd and Te in ethylene diamine leading to particles of around 100-500 nm in diameter with a specific surface area of 4.1 m2 g-1. An increase in the deposition rate by the factor of 1.7 was observed for the nanostructured powder as compared to the bulk material.