5 papers · 1 filter
Band edge discontinuities and carrier transport in c-Si/porous silicon heterojunctions
Md. N. Islam, Sanjay K. Ram, Satyendra Kumar
We have prepared light emitting nanocrystalline porous silicon (PS) layers by electrochemical anodization of crystalline silicon (c-Si) wafer and characterized the c-Si/PS heteroju…
Determination of localized conduction band-tail states distribution in single phase undoped microcrystalline silicon
Sanjay K. Ram, Satyendra Kumar, P. Roca i Cabarrocas
We report on the phototransport properties of microstructurally well characterized plasma deposited highly crystallized microcrystalline silicon films. The steady state photoconduc…
Elucidation of microstructure of single-phase microcrystalline silicon based on crystallite size distributions
Sanjay K. Ram, MD. N. Islam, P. Roca I Cabarrocas +1
Highly crystallized undoped hydrogenated microcrystalline silicon films prepared using SiF4-H2 mixture plasma were investigated at various stages of growth employing different micr…
Influence of fractional composition of crystallite grains on the dark conductivity in fully crystallized undoped microcrystalline silicon
Sanjay K. Ram, Satyendra Kumar, P. Roca i Cabarrocas
Improvement in film growth technology requires a knowledge of the correlation between microstructural and deposition parameters with electrical properties in hydrogenated microcrys…
Effective density of states profiles of heterogeneous microcrystalline silicon
Sanjay K. Ram, Satyendra Kumar
The steady state photoconductivity as a function of temperature and light intensity was measured on plasma deposited highly crystalline undoped hydrogenated microcrystalline silico…