Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/9579
Title: Effective mass calculation for InSe, InSe:Ho<sub>0.0025</sub>, InSe:Ho<sub>0.025</sub>, InSe:Ho<sub>0.005 </sub>and InSe:Ho<sub>0.05</sub> samples using the external electric field shifting
Authors: ATEŞ, Aytunç
Keywords: InSe single crystal
absorption
exciton binding energy
Holmium doping
Issue Date: Mar-2004
Publisher: CSIR
Series/Report no.: H 01L 27/04
Abstract: Undoped InSe and Ho doped InSe single crystals were grown by Bridgman-Stockberger method. The InSe crystals both undoped and doped with different ratios of  (InSe:Ho<sub>0.0025</sub>, InSe:Ho<sub>0.025</sub>, InSe:Ho<sub>0.005 </sub>and InSe:Ho<sub>0.05</sub>) had no cracks or voids on the surface. No polishing or cleaning treatments were carried out on the cleaved faces of these samples because of the natural mirror-like cleavage faces. The absorption measurements were carried out in the temperature range 10-320 K and the external electric field effect on the absorption measurements was investigated. The absorption edge shifted towards the longer wavelengths under an electric field as  6 kV/cm. Using the electric field shits, effective mass values are calculated for all the samples.
Description: 205-210
URI: http://hdl.handle.net/123456789/9579
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.42(03) [March 2004]

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