Pressure and temperature effect on exciton lines in TlGaS2 crystal

Abutalybov G., Ragimova N., Dzhafarova S., Mekhtiev E.

JTP Letters, vol.18, pp.35-39, 1992 (Peer-Reviewed Journal)

  • Nəşrin Növü: Article / Article
  • Cild: 18
  • Nəşr tarixi: 1992
  • jurnalın adı: JTP Letters
  • Səhifə sayı: pp.35-39
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

Experimental investigations are described of the exciton absorption and photoluminescence spectra of TlGaS[sub 2] monocrystals in the wide ranges of pressure (0-20 kbar) and temperature (1.8-190 K). It is shown that temperature rise causes increasing the forbidden zone width. The emission line shift of TlGaS[sub 2] is linear in respect pressure with accuracy not less than the ruby line shift. The fact permits to use the energy shifts of the ultranarrow line of TlGaS[sub 2] ([lambda]=5957, 2A) for determination of the value of uniform compression at low temperatures.