Stark Effect in Molecular Exciton States

分子 Exciton 狀態에서의 Stark 效果

  • Jo W. Lee (Department of Chemistry, College of Natural Science)
  • 이조웅 (서울大學敎 自然科學大學 化學科)
  • Published : 1975.10.30

Abstract

A formal theory to explain the Stark effect in molecular exciton states is developed using the second-quantization formalism. In this theory not only the Stark effect but also the Davydov effect are explicitly taken into consideration since the observed spectral splitting in the UV spectra for molecular crystals with two or more molecules per unit cell may be the result of combination of the above two effects. Especially for molecular crystals containing two molecules in a unit cell the splitting is shown to be hyperbolically dependent upon the strength of an externally applied, uniform electric field, from which informations regarding the excited state dipole moments of a single molecule may be obtained.

제이양자화 형식을 이용하여 분자 exciton 상태에서의 Stark 효과를 설명하는 이론을 전개하였다. 하나의 단위 세포당 두 개이상의 분자를 함유하는 결정에서의 스펙트럼 분리는 Stark효과 뿐만 아니라 Davydov 효과에도 관계 있으므로 이 두 효과를 모두 고려하여 결과에 반영되도록 하였다. 특히 단위세포당 두개의 분자를 함유하는 결정에 있어서의 스펙트럼 분리는 외부에서 걸어준 균일한 전기장의 세기에 따라 쌍곡선함수적으로 변한다는 것을 보였으며 이로부터 한 분자의 들뜬 상태에서의 쌍극자모멘트에 관한 정보를 얻을 수 있음을 밝혔다.

Keywords

References

  1. Theory of Molecular Excitons A.S. Davydov;S.B. Dresner(tr.)
  2. Theory of Molecular Excitons A.S. Davydov;M. Kasha(tr.)(ed.);M. Oppenheimer, Jr.(tr.)(ed.)
  3. ZhETF v.18 A.S. Davydov
  4. J. Chem. Phys. v.22 D.S. McClure
  5. J. Chem. Soc. D.P. Craig
  6. Physics and Chemistry of the Organic solid State v.I D.P. Craig;S.H. Walmsley;D. Fox(ed.);M.M. Labes(ed.);A. Weissberger(ed.)
  7. Theory of Molecular Excitons A.S. Davydov;S.B. Dresner(tr.)
  8. Physics and Chemistry of the Organic solid State v.I D.P. Craig;S.H. Walmsley;D. Fox(ed.);M.M. Labes(ed.);A. Weissberger(ed.)
  9. J. Chem. Phys. v.48 R.M. Hochstrasser;L.J. Noe
  10. J. Chem. Phys. v.50 R.M. Hochstrasser;L.J. Noe
  11. Chem. Phys. Lett. v.5 R.M. Hochstrasser;L.J. Noe
  12. Hochstrasser(et al.)
  13. ZhETF v.37 V.M. Agranovitch
  14. Soviet Phys. -JETP v.37 V.M. Agranovitch
  15. Quantum Theory of Many-Particle Systems A.L. Fetter;J.D. Walecka
  16. J. Chem. Phys. v.51 M.R. Philpott
  17. Lectures on quantum Statistics v.1 N.N. Boglieubov
  18. Methods in the Quantum Theory of Magnetism S.V. Tyablikov
  19. Fiz. Ter. Tela v.3 V.M. Agranovitch
  20. Soviet Phys. -Solid State v.3 V.M. Agranovitch
  21. J. Chem. Phys. v.57 M.R. Philpott;J.W. Lee
  22. Excitons in Molecular Crystals D.P. Craig;S.H. Walmsley
  23. Theory of Molecular Excitons A.S. Davydov;S.B. Dresner(tr.)
  24. J. Chem. Phys. v.58 M.R. Philpott;J.W. Lee
  25. J. Chem. Phys. v.49 R.M. Hochstrasser;T.S. Lin
  26. Theory of the Electronic Spectra of Organic Molecules J.N. Murell
  27. J. Chem. Phys. v.25 R. Pariser