The effects of air, oxygen and water exposure on the sub-bandgap absorption, the electronic conductivity and the ambipolar diffusion length in highly crystalline microcrystalline silicon films for photovoltaic applications

Reversible and irreversible changes due to long term air and short term de-ionized water (DIW) or pure oxygen exposure were investigated in about 1 µm thick hydrogenated microcrystalline silicon (µc-Si:H) films deposited on rough glass substrates, thereby comparing highly crystalline with compact ma...

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Veröffentlicht in:	Journal of materials science. Materials in electronics 2020-03, Vol.31 (5), p.3960-3975
Hauptverfasser:	Güneş, Mehmet, Smirnov, V., Finger, F., Brüggemann, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption spectra Adsorbents Ambipolar diffusion Annealing Characterization and Evaluation of Materials Chemical reactions Chemistry and Materials Science Crystal structure Crystallinity Diffusion length Energy gap Exposure Fermi level Fermi surfaces Glass substrates Long term Material properties Materials Science Minority carriers Optical and Electronic Materials Organic chemistry Oxygen Photoconductivity Porous materials Silicon films Steady state Surface charge Surface chemistry Temperature dependence Time dependence
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