5 Result(s)

Article

Effect of illumination on the crystallization kinetics of amorphous Se_80−xTe₂₀In_x

The present paper reports the effect of illumination on the crystallization kinetics in amorphous Se_80−xTe₂₀In_x (0⩽x⩽10). The crystallization was monitored by measuring the electrical conductivity of isothermally...

S. K. Agrahari, P. K. Dwivedi, R. K. Shukla, A. Kumar in Journal of Materials Science (1996)

Article

Amorphous-to-crystalline transition in Ge₂₂Se_78−x Bi _x system

Crystallization kinetics is studied in glassy Ge₂₂Se_78−x Bi _x (0≤x≤10) using isothermal annealing at various temperatures between the glass transition and melting. D.c. conducti...

S. K. Agrahari, P. K. Dwivedi, R. Arora, A. Kumar in Il Nuovo Cimento D (1996)

Article

Photocrystallization in amorphous thin films of Se₇₀Te_30−xCd_x

The present paper reports a study of photocrystallization in a-Se₇₀Te_30−xCd_x films (0≤x≤4). The photocrystallization is achieved by shining white light at room temperature for different exposure times. The result...

S. K. Srivastava, P. K. Dwivedi, Sanjay, A. Kumar in Il Nuovo Cimento D (1995)

Article

A study of the density of localized states in a-Ge₂₂Se_78-xBi_x

P. K. Dwivedi, S. Kumar, S. K. Srivastava, A. Kumar in Journal of Materials Science Letters (1994)

Article

Composition dependence of photoconductivity in amorphous thin films of Se₇₀Te_30−xSb_x

The present paper reports the composition dependence of steady-state and transient photoconductivity in amorphous thin films of Se₇₀Te_30-xSb_x, wherex is varied from 0 to 10. The results indicate that photoconduct...

P. K. Dwivedi, S. K. Srivastava, A. Kumar in Il Nuovo Cimento D (1993)