Electric field influence on absorption measurement in InSe single crystal

Ates, Azman; Gurbulak, Bekir; Yildirim, A; Dogan, S

doi:10.1016/s1386-9477(02)00696-3

Electric field influence on absorption measurement in InSe single crystal

Atıf İçin Kopyala

Ates A., Gurbulak B., Yildirim A., Dogan S.

Physica E: Low-Dimensional Systems and Nanostructures, cilt.16, sa.2, ss.274-279, 2003 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 16 Sayı: 2
Basım Tarihi: 2003
Doi Numarası: 10.1016/s1386-9477(02)00696-3
Dergi Adı: Physica E: Low-Dimensional Systems and Nanostructures
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.274-279
Atatürk Üniversitesi Adresli: Evet

Özet

InSe single crystal was grown by Bridgman-Stockberger method. Electric field effect on the absorption measurements have been investigated as a function temperature in InSe single crystal. The absorption edge shifted towards longer wavelengths and a decrease of intensity in absorption spectra occurred under an electric field of 5 kV/cm. Using absorption measurements, steepness parameter and Urbach energy were calculated under electric field. Applied electric field caused an increase in the Urbach energy. At 10 and 320 K, the first exciton energies were calculated as 1.350 and 1.311 eV for zero voltage and 1.334 and 1.301 eV for electric field respectively. (C) 2002 Elsevier Science B.V. All rights reserved.