The Shape of Disorder

  • Stanford R. Ovshinsky
Part of the Institute for Amorphous Studies Series book series (IASS)


I feel that the best way for me to write a paper that honors Sir Nevill Mott is to continue a discussion on points of our mutual concern for Mott is not one who rests on his laurels but is in ceaseless struggle with nature, using the power of his mind as a searchlight into the unknown; in the case of amorphous materials, into the world of disorder. It is unfortunate that this negative emotive word, disorder, is used to describe amorphous materials since I believe that the operative description of the uniqueness of amorphous materials is really “freedom”-freedom from restrictions of crystalline symmetry, freedom from stoichiometry, and especially freedom of choices of bonding and nearest neighbor relationships. The multiple bonding and orbital relationships permitted by the removal of crystalline restrictions, while numerous, are specific and, in the manner and number in which they co-exist in an amorphous material, are definable as well as being unique.


Lone Pair Amorphous Material Amorphous Silicon Defect State Amorphous Semiconductor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    S.R. Ovshinsky, J. Non-Cryst. Solids 2, 99 (1970).ADSCrossRefGoogle Scholar
  2. 2.
    Tetrahedrally Bonded Amorphous Semiconductors, eds. M. H. Brodsky, S. Kirkpatrick and D. Weaire (New York, AIP, 1974).Google Scholar
  3. 3.
    S.R. Ovshinsky, Amorphous and Liquid Semiconductors, ed. W.E. Spear (Edinburgh, CICL, 1977) p. 519.Google Scholar
  4. 4.
    S.R. Ovshinsky, Electronic-Structural Transformations in Amorphous Materials-A Conceptual Model, submitted to Nature-July 13, 1972, unpublished.Google Scholar
  5. 5.
    J.P. deNeufville, S.C. Moss and S.R. Ovshinsky, J.Non-Cryst. Solids 13, 191 (1973/74).CrossRefGoogle Scholar
  6. 6.
    S.R. Ovshinsky and K. Sapru, Amorphous and Liquid Semiconductors, ed. J. Stuke and W. Brenig (London, Taylor and Francis, 1974) p. 447.Google Scholar
  7. 7.
    Boolchand, personal communication.Google Scholar
  8. 8.
    J.P. deNeufville, J. Non-Cryst. Solids 8–10, 85 (1972).Google Scholar
  9. 9.
    W. Paul, A.J. Lewis, G.A.N. Connel and T.D. Moustakis, Solid S. Commun. 20, 969 (1976).ADSCrossRefGoogle Scholar
  10. 10.
    S.R. Ovshinsky and D. Adler, Contemp. Phys. 19, 109 (1978).ADSCrossRefGoogle Scholar
  11. 11.
    R. Flasck, M. Izu, K. Sapru, T. Anderson, S.R. Ovshinsky and H. Fritzsche, Amorphous and Liquid Semiconductors, ed. W.E. Spear (Edinburgh, CICL, 1977) p. 524.Google Scholar
  12. 12.
    S.R. Ovshinsky, Structure and Excitations of Amorphous Solids, eds. G. Lucovsky and F.L. Galeener (New York, AIP, 1976) p. 31.Google Scholar
  13. 13.
    S.R. Ovshinsky, K. Sapru and K. Dec, in Proc. Intl. Topical Conf., Yorktown Heights, New York, March 22–24, 1978, ed. S.T. Pantelides, p. 304.Google Scholar
  14. 14.
    H. Fritzsche, Amorphous and Liquid Semiconductors, ed. W.E. Spear (Edinburgh, CICL, 1977) p. 3.Google Scholar
  15. 15.
    J.C. Knights, Amorphous and Liquid Semiconductors, ed. W.E. Spear (Edinburgh, CICL, 1977) p. 433.Google Scholar
  16. 16.
    J.C. Knights, Tenth Solid State Device Conf. (Tokyo, Japan, August 29, 1978).Google Scholar
  17. 17.
    G. Lucovsky, R.J. Namanich and J.C. Knights, Phys. Rev., to be published.Google Scholar
  18. 18.
    M. Tanielian, H. Fritzsche, C.C. Tsai and E. Symbalisty, Appl. Phys. Lett., to be published.Google Scholar
  19. 19.
    C.C. Tsai and H. Fritzsche, Solar Energy Mater. 1, 29 (1979).CrossRefGoogle Scholar
  20. 20.
    S.R. Ovshinsky and H. Fritzsche, IEEE Trans. on Electron Devices ED-20, 91 (1973).Google Scholar
  21. 21.
    S.R. Ovshinsky, Structure and Properties of Non-Crystalline Semiconductors, ed. B.T. Kolomiets (Leningrad, Nauka, 1976) p. 426.Google Scholar
  22. 22.
    S.R. Ovshinsky, Phys. Rev. Lett. 36, 1469 (1976).ADSCrossRefGoogle Scholar
  23. 23.
    P.W. Anderson, Phys. Rev. Lett. 34, 953 (1975).ADSCrossRefGoogle Scholar
  24. 24.
    R.A. Street and N.F. Mott, Phys. Rev. Lett. 35, 1293 (1975).ADSCrossRefGoogle Scholar
  25. 25.
    N.F. Mott, E.A. Davis and R.A. Street, Phil. Mag. 32, 961 (1975).ADSCrossRefGoogle Scholar
  26. 26.
    N.F. Mott and R.A. Street, Phil. Mag. 36, 33 (1977).ADSCrossRefGoogle Scholar
  27. 27.
    M. Kastner, D. Adler and H. Fritzsche, Phys. Rev. Lett. 37, 1504 (1976).ADSCrossRefGoogle Scholar
  28. 28.
    S.R. Ovshinsky and A. Madan, in: 1978 Ann. Meeting of the American Section of the Intl. Solar Energy Society (August 28–31, 1978, Denver, USA), to be published.Google Scholar
  29. 29.
    S.R. Ovshinsky and A. Madan, Nature 276, 482 (1978).ADSCrossRefGoogle Scholar
  30. 30.
    S.R. Ovshinsky and A. Madan, Phil. Mag., to be published.Google Scholar
  31. 31.
    B.L. Staebler and C.R. Wronski, Appl. Phys. Lett. 31, 292 (1977).ADSCrossRefGoogle Scholar
  32. 32.
    S.R. Ovshinsky, in: Digest of Technical Papers of the Topical Meeting on Optical Storage of Digital Data (March 19–21, 1973, Aspen, Colorado, USA) p. MB5–1.Google Scholar
  33. 33.
    S.R. Ovshinsky and P.H. Klose, J. Non-Cryst. Solids 8–10, 892 (1972).Google Scholar
  34. 34.
    S.R. Ovshinsky, in: Proc. of the 4th Intl. Congr. for Reprography and Information (April 13–17, 1975, Hannover, Germany) p. 109.Google Scholar
  35. 35.
    S.R. Ovshinsky, J. Appl. Photographic Eng. 3, 35 (1977).Google Scholar
  36. 36.
    D.E. Carlson and C.R. Wronski, Appl. Phys. Lett. 28, 671 (1976).ADSCrossRefGoogle Scholar
  37. 37.
    W.E. Spear and P.G. LeComber, Solid State Commun. 17, 1193 (1975).ADSCrossRefGoogle Scholar
  38. 38.
    M. Kastner, in: Topical Conf. on Atomic Scale Structure of Amorphous Solids (Yorktown Heights, New York, April 3–5, 1978); publ. inGoogle Scholar
  39. 38a.
    * M. Kastner *J. Non-Cryst. Solids 31, 223 (1978).ADSCrossRefGoogle Scholar
  40. 39.
    M. Kastner, Phys. Rev. Lett. 28, 355 (1972).ADSCrossRefGoogle Scholar
  41. 40.
    M. Kastner and H. Fritzsche, Phil. Mag. 37., 199 (1978).Google Scholar
  42. 41.
    S.R. Ovshinsky, Phys. Rev. Lett. 21, 1450 (1968).ADSCrossRefGoogle Scholar
  43. 42.
    S.R. Ovshinsky and I.M. Ovshinsky, Mat. Res. Bull. 5, 681 (1970).CrossRefGoogle Scholar
  44. 43.
    D. Adler, H.K. Henisch and N.F. Mott, Rev. Mod. Phys. 50, 209 (1978).ADSCrossRefGoogle Scholar
  45. 44.
    M.P. Shaw, M.S. Shur, K.F. Subhani, D. Adler, M. Silver and S.R. Ovshinsky, J. Appl. Phys., to be published.Google Scholar

Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • Stanford R. Ovshinsky
    • 1
  1. 1.Energy Conversion Devices, Inc.TroyUSA

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