Effect of metal additives on photodarkening kinetics in amorphous As2Se3 films

Yovu M.; Shutov Serghei; Rebeja S.; Kolomeyko Eduard; Popescu Mihai A.

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YOVU, M., SHUTOV, Serghei, REBEJA, S., KOLOMEYKO, Eduard, POPESCU, Mihai A.. Effect of metal additives on photodarkening kinetics in amorphous As2Se3 films. In: Journal of Optoelectronics and Advanced Materials, 2000, vol. 2, pp. 53-58. ISSN 1454-4164.

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Journal of Optoelectronics and Advanced Materials

Volumul 2 / 2000 / ISSN 1454-4164

Effect of metal additives on photodarkening kinetics in amorphous As2Se3 films

Pag. 53-58

Yovu M.¹, Shutov Serghei¹, Rebeja S.¹, Kolomeyko Eduard¹, Popescu Mihai A.²

¹ Center of Optoelectronics,
² National Institute of Materials Physics Bucharest-Magurele

Disponibil în IBN: 22 februarie 2024

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Rezumat

Photodarkening relaxation under light exposure of a-As₂Se₃ amorphous films doped with 0.5 at.% tin, manganese, samarium and dysposium, separately introduced, was studied in dependence on the impurity type and thermal annealing. Both factors reduce photodarkening and the degree of reduction depends on the type of impurity. The relaxation process may be described by a stretched exponential with the dispersive parameter 0.5<α[removed]

Cuvinte-cheie
Amorphous chalcogenide, As2Se3 film, Metal doped chalcogenide, Photodarkening kinetics

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