Rodrigo Martins

Citation:

Raniero, L., Gonçalves Pimentel Ferreira Zhang Pereira Águas Fortunato Martins A. A. I. "Influence of hydrogen plasma on electrical and optical properties of transparent conductive oxides." Materials Research Society Symposium Proceedings. Vol. 862. 2005. 543-548.

Abstract:

In this work we study the optical and electrical behavior of ZnO:Ga, ITO and IZO films deposited on glass after sustaining different hydrogen plasma conditions and exposure times. This work was complemented by analyzing the surface morphology of the set of films, which allow us to determine the role of hydrogen plasma on the film's properties such as Hall mobility, free carrier concentration, sheet resistance, optical transmittance, figure of merit and state of the surface. Apart from that, the performances of solar cells using an intrinsic layer constituted by nanocrystalline silicon will be also presented. The data show that the electrical properties of solar cells were improved by using ZnO:Ga as front contact, allowing a high current density collection and single pin solar cells with efficiencies exceeding 11%. © 2005 Materials Research Society.

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