Transport properties in microcrystalline silicon solar cells under AM1.5 illumination analyzed by two-dimensional numerical simulation

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Abstract

Microcrystalline silicon is a two-phase material. Its composition can be interpreted as a series of grains of crystalline silicon imbedded in an amorphous silicon tissue, with a high concentration of dangling bonds in the transition regions. In this paper, results for the transport properties of a μc-Si:H p-i-n junction obtained by means of two-dimensional numerical simulation are reported. The role played by the boundary regions between the crystalline grains and the amorphous matrix is taken into account and these regions are treated similar to a heterojunction interface. The device is analyzed under AM1.5 illumination and the paper outlines the influence of the local electric field at the grain boundary transition regions on the internal electric configuration of the device and on the transport mechanism within the μc-Si:H intrinsic layer.

Original languageEnglish
Pages (from-to)1709-1714
Number of pages6
JournalSolid-State Electronics
Volume43
Issue number9
DOIs
Publication statusPublished - Sep 1999

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