Enhanced Optical Absorption in Microcrystalline Silicon

An enhanced optical absorption, compared to crystalline silicon, was observed in the above gap region together with very low defect-connected absorption in microcrystalline silicon (μc-Si:H) prepared by very high frequency glow discharge technique at 70 MHz. As the μc-Si:H material has a very low fraction of amorphous phase, a 'crystalline silicon like' absorption model is proposed which associates most absorption properties of μc-Si:H to the crystalline phase in the material. Thereby the influence of internal strain, microcrystallite boundaries, hydrogen content and elastic light scattering on the absorption properties are discussed.


Published in:
J. Non-Crystalline Solids, 198-200, 903-906
Year:
1996
Note:
IMT-NE Number: 206
Laboratories:


Note: The status of this file is: Involved Laboratories Only


 Record created 2009-02-10, last modified 2018-09-13

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