$\alpha$-sulfur 단결정의 광학적 특성에 관한 연구

Oprical Properties of $\alpha$-Sulfur Single Crystal

  • 송호준 (기초과학지원연구소 광주분소) ;
  • 김화택 (기초과학지원연구소 광주분소) ;
  • 이정순 (기초과학지원연구소 대전분소)
  • 발행 : 1998.06.01

초록

$\alpha$--sulfur single crystal which has orthorohmbic structure was grown using Bridgman method. The indirect optical energy band gap of this crystal are 2.65 and 2.82 eV at 10 and 300K, respectively. The wavelengths of photoluminecence(PL) peaks are 543 and 596 nm at 10k, By thermally stimulated current (TSC) method, two electron traps($D_1,D_2$) located at 0/23 and 0.43eV below the conduction band and a hole trap(A) located at 0.31 eV above the valence band are observed. PL mechanism of $\alpha$-sulfur single crystal is analyzed using the values of optical energy band gap at 10k two electron traps and a hole trap.

키워드

참고문헌

  1. Chem. Rev. no.64 Solid Allotropes of Sulfur Beat Meyer
  2. J. Phys.: Condens. Matter 6 Optical absorption spectra of liquid sulphur over wide absorption range Shinya Hosokawa;Tadashi Matsuoka;Kozaburo Tamura
  3. J. Phys. Chem. no.100 λ Transition in Liquid Sulfur Studied by Brillouin Scattering Alvarenga, A. D.;Grimsditch, M.;Susman, S.;Rowland, S. C.
  4. J. Phys. Chem. Solids v.47 no.2 Indirect band gap investigation of orthorhombic sigle crystals of sulfur ABASS, A. K.;AHMAD, N. H.
  5. J. Phys. Chem. Solids no.27 Photogeneration of charge carriers and relatd optical properties in orthorhombic sulfur SPEAR, W. E.;ADAMS, A. R.
  6. Phys. Rev. B v.10 no.4 Photoemission studies of sulfur Paul Nielsen
  7. J. Phys. hem. v.72 no.2 Crystal-field splitting of fundamentals in the Roman spectrum of rhombic sulfur Ward, A. T.
  8. Phys. Rev. B v.9 no.10 Pressure-Raman effects and vibrational scaling laws in molecular crystals: $S_8$ and As₂S₃ Richard Zallen
  9. J. Appl. Phys. v.58 no.4 Investigation of optically allowed transitiions of α-sulfur thin film Abass, A. K.;Hasen, A. K.;Misho, R. H.
  10. J. Appl. Phys. v.58 no.4 Investigation of optically allowed transitions of α-sulfur thin film A. K. Abass;A. K. Hasen;R. H. Misho
  11. Elements of X-ray Diffraction Cullity, B. D.
  12. J. Acta Crystallorg. no.14 The lattice constants of orthohombic sulfur and revision of the interatomic distances Caron A.;Donohue
  13. Optical process in semiconductors Pankov, J. I.
  14. Physics of quantum electronics Kelley, P. L.;Lax, B.;Tamnenwald, P. E.
  15. J. Appl. Phys. v.54 no.4 Trapping center parameters in indium selenide current measurements Micocci, G.;Rizzo, A.;Tepore
  16. Thermally Stimulated Relaxation in Solids Braunlich, P.
  17. Jpn. J. Appl. Phys. v.19 no.4 A new method for determining the trap depth from thermally stimulated current Shigeyoshi Maeta;Kiyokazu Sakagucui
  18. Thermally Stimulated Relaxation in Solids P. Braunlich
  19. Jpn. J. Appl. Phys. v.19 no.4 A new method for determining the trap depth from thermally stimulted current Shigeyoshi Maeta;Kiyokazu Sakaguchi