Abstract

Many features of the behavior of luminescent sulphides can be correlated by means of a mechanism based on the energy-band theory of the solid insulator. It is imagined that after excitation, which is essentially an ionization of an activator atom, the dissociated electron is highly likely to be trapped and held localized in a discrete energy level in the forbidden region, recombining with an ion and emitting the characteristic luminescence only after it has been freed from this trapped state by thermal excitation or other agencies. This picture, with appropriate modifications, is also useful in explaining the properties of silicate phosphors.

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  1. For a nonmathematical discussion and references, see F. Seitz and R. P. Johnson, J. App. Phys. 8, 84, 186, 246 (1937); also, N. F. Mott, Trans. Faraday Soc. 34, 822 (1938).
  2. Summarized by E. L. Nichols and E. Merritt, Studies in Luminescence (Washington, 1912); P. Lenad, F. Schmidt and R. Tomaschek, Handbuch der Experimentalphysik XXIII/1 and 2 (Leipzig, 1928); P. Pringsheim, Fluoreszenz und Phosphoreszenz (Berlin, 3rd Ed., 1928); M. Curie, Luminescence des Corps Solides (Paris, 1934); L. Vanino, Die Leuchtfarben (Stuttgart, 1935); H. Rupp, Die Leuchtmassen und ihre Verwendung (Berlin, 1937).
  3. E. T. Goodwin, Proc. Camb. Phil. Soc. 35, 205, 221, 232 (1939); W. Shockley, Phys. Rev. 56, 317 (1939).
  4. See M. Schön, Zeits. f. tech. Physik 19, 361 (1938).
  5. K. Scherer and R. Rübsaat, Archiv f. Elektrot. 31, 821 (1937).
  6. P. M. Wolf and N. Riehi, Ann. d. Physik 11, 108 (1931).
  7. See also A. Guntz, Ann. de Chimie 6, 5 (1926).
  8. A. L. Reimann, Nature 140, 501 (1937).
  9. W. B. Nottingham, J. App. Phys. 10, 73 (1939); S. T.Martin and L. B. Headrick, J. App. Phys. 10, 116 (1939); W. de Groot, Physica 6, 393 (1939); N. Riehl, Zeits. f. tech. Physik 20, 152 (1939).
  10. A. Schleede and B. Bartels, Zeits. f. tech. Physik 19, 364 (1938); P. J. Mulder, J. Frank. Inst. 225, 527 (1938); W. de Groot, Physica 6, 275 (1939); R. B. Nelson, R. P. Johnson and W. B. Nottingham, J. App. Phys. 10, 335 (1939).
  11. S. T. Martin and L. B. Headrick, J. App. Phys. 10, 116 (1939); R. B. Nelson, R. P. Johnson and W. B. Nottingham, J. App. Phys. 10, 335 (1939); G. R. Fonda, J. App. Phys. 10, 408 (1939); R. P. Johnson and W. L. Davis, J. Opt. Soc. Am. 29, 283 (1939).
  12. G. R. Fonda, J. App. Phys. 10, 408 (1939).
  13. R. Hofstader, Phys. Rev. 54, 864 (1938).
  14. See, for example, J. W. Marden and G. Meister, Trans. I.E.S. 34, 503 (1939).
  15. J. C. Slater, Trans. Faraday Soc. 34, 828 (1938); A. von Hippel, Phys. Rev. 54, 1096 (1938).
  16. For example, Trans. Faraday Soc. 35 (Discussion on Luminescence) (1939).
  17. D. Blochinzew, Phys. Zeits. Sowjetunion 12, 587 (1937).
  18. W. de Groot, Physica 6, 275 (1939).

Bartels, B.

A. Schleede and B. Bartels, Zeits. f. tech. Physik 19, 364 (1938); P. J. Mulder, J. Frank. Inst. 225, 527 (1938); W. de Groot, Physica 6, 275 (1939); R. B. Nelson, R. P. Johnson and W. B. Nottingham, J. App. Phys. 10, 335 (1939).

Blochinzew, D.

D. Blochinzew, Phys. Zeits. Sowjetunion 12, 587 (1937).

de Groot, W.

W. de Groot, Physica 6, 275 (1939).

Fonda, G. R.

G. R. Fonda, J. App. Phys. 10, 408 (1939).

Goodwin, E. T.

E. T. Goodwin, Proc. Camb. Phil. Soc. 35, 205, 221, 232 (1939); W. Shockley, Phys. Rev. 56, 317 (1939).

Guntz, A.

See also A. Guntz, Ann. de Chimie 6, 5 (1926).

Headrick, L. B.

S. T. Martin and L. B. Headrick, J. App. Phys. 10, 116 (1939); R. B. Nelson, R. P. Johnson and W. B. Nottingham, J. App. Phys. 10, 335 (1939); G. R. Fonda, J. App. Phys. 10, 408 (1939); R. P. Johnson and W. L. Davis, J. Opt. Soc. Am. 29, 283 (1939).

Hofstader, R.

R. Hofstader, Phys. Rev. 54, 864 (1938).

Johnson, R. P.

For a nonmathematical discussion and references, see F. Seitz and R. P. Johnson, J. App. Phys. 8, 84, 186, 246 (1937); also, N. F. Mott, Trans. Faraday Soc. 34, 822 (1938).

Marden, J. W.

See, for example, J. W. Marden and G. Meister, Trans. I.E.S. 34, 503 (1939).

Martin, S. T.

S. T. Martin and L. B. Headrick, J. App. Phys. 10, 116 (1939); R. B. Nelson, R. P. Johnson and W. B. Nottingham, J. App. Phys. 10, 335 (1939); G. R. Fonda, J. App. Phys. 10, 408 (1939); R. P. Johnson and W. L. Davis, J. Opt. Soc. Am. 29, 283 (1939).

Meister, G.

See, for example, J. W. Marden and G. Meister, Trans. I.E.S. 34, 503 (1939).

Merritt, E.

Summarized by E. L. Nichols and E. Merritt, Studies in Luminescence (Washington, 1912); P. Lenad, F. Schmidt and R. Tomaschek, Handbuch der Experimentalphysik XXIII/1 and 2 (Leipzig, 1928); P. Pringsheim, Fluoreszenz und Phosphoreszenz (Berlin, 3rd Ed., 1928); M. Curie, Luminescence des Corps Solides (Paris, 1934); L. Vanino, Die Leuchtfarben (Stuttgart, 1935); H. Rupp, Die Leuchtmassen und ihre Verwendung (Berlin, 1937).

Nichols, E. L.

Summarized by E. L. Nichols and E. Merritt, Studies in Luminescence (Washington, 1912); P. Lenad, F. Schmidt and R. Tomaschek, Handbuch der Experimentalphysik XXIII/1 and 2 (Leipzig, 1928); P. Pringsheim, Fluoreszenz und Phosphoreszenz (Berlin, 3rd Ed., 1928); M. Curie, Luminescence des Corps Solides (Paris, 1934); L. Vanino, Die Leuchtfarben (Stuttgart, 1935); H. Rupp, Die Leuchtmassen und ihre Verwendung (Berlin, 1937).

Nottingham, W. B.

W. B. Nottingham, J. App. Phys. 10, 73 (1939); S. T.Martin and L. B. Headrick, J. App. Phys. 10, 116 (1939); W. de Groot, Physica 6, 393 (1939); N. Riehl, Zeits. f. tech. Physik 20, 152 (1939).

Reimann, A. L.

A. L. Reimann, Nature 140, 501 (1937).

Riehi, N.

P. M. Wolf and N. Riehi, Ann. d. Physik 11, 108 (1931).

Rübsaat, R.

K. Scherer and R. Rübsaat, Archiv f. Elektrot. 31, 821 (1937).

Scherer, K.

K. Scherer and R. Rübsaat, Archiv f. Elektrot. 31, 821 (1937).

Schleede, A.

A. Schleede and B. Bartels, Zeits. f. tech. Physik 19, 364 (1938); P. J. Mulder, J. Frank. Inst. 225, 527 (1938); W. de Groot, Physica 6, 275 (1939); R. B. Nelson, R. P. Johnson and W. B. Nottingham, J. App. Phys. 10, 335 (1939).

Schön, M.

See M. Schön, Zeits. f. tech. Physik 19, 361 (1938).

Seitz, F.

For a nonmathematical discussion and references, see F. Seitz and R. P. Johnson, J. App. Phys. 8, 84, 186, 246 (1937); also, N. F. Mott, Trans. Faraday Soc. 34, 822 (1938).

Slater, J. C.

J. C. Slater, Trans. Faraday Soc. 34, 828 (1938); A. von Hippel, Phys. Rev. 54, 1096 (1938).

Wolf, P. M.

P. M. Wolf and N. Riehi, Ann. d. Physik 11, 108 (1931).

Other (18)

For a nonmathematical discussion and references, see F. Seitz and R. P. Johnson, J. App. Phys. 8, 84, 186, 246 (1937); also, N. F. Mott, Trans. Faraday Soc. 34, 822 (1938).

Summarized by E. L. Nichols and E. Merritt, Studies in Luminescence (Washington, 1912); P. Lenad, F. Schmidt and R. Tomaschek, Handbuch der Experimentalphysik XXIII/1 and 2 (Leipzig, 1928); P. Pringsheim, Fluoreszenz und Phosphoreszenz (Berlin, 3rd Ed., 1928); M. Curie, Luminescence des Corps Solides (Paris, 1934); L. Vanino, Die Leuchtfarben (Stuttgart, 1935); H. Rupp, Die Leuchtmassen und ihre Verwendung (Berlin, 1937).

E. T. Goodwin, Proc. Camb. Phil. Soc. 35, 205, 221, 232 (1939); W. Shockley, Phys. Rev. 56, 317 (1939).

See M. Schön, Zeits. f. tech. Physik 19, 361 (1938).

K. Scherer and R. Rübsaat, Archiv f. Elektrot. 31, 821 (1937).

P. M. Wolf and N. Riehi, Ann. d. Physik 11, 108 (1931).

See also A. Guntz, Ann. de Chimie 6, 5 (1926).

A. L. Reimann, Nature 140, 501 (1937).

W. B. Nottingham, J. App. Phys. 10, 73 (1939); S. T.Martin and L. B. Headrick, J. App. Phys. 10, 116 (1939); W. de Groot, Physica 6, 393 (1939); N. Riehl, Zeits. f. tech. Physik 20, 152 (1939).

A. Schleede and B. Bartels, Zeits. f. tech. Physik 19, 364 (1938); P. J. Mulder, J. Frank. Inst. 225, 527 (1938); W. de Groot, Physica 6, 275 (1939); R. B. Nelson, R. P. Johnson and W. B. Nottingham, J. App. Phys. 10, 335 (1939).

S. T. Martin and L. B. Headrick, J. App. Phys. 10, 116 (1939); R. B. Nelson, R. P. Johnson and W. B. Nottingham, J. App. Phys. 10, 335 (1939); G. R. Fonda, J. App. Phys. 10, 408 (1939); R. P. Johnson and W. L. Davis, J. Opt. Soc. Am. 29, 283 (1939).

G. R. Fonda, J. App. Phys. 10, 408 (1939).

R. Hofstader, Phys. Rev. 54, 864 (1938).

See, for example, J. W. Marden and G. Meister, Trans. I.E.S. 34, 503 (1939).

J. C. Slater, Trans. Faraday Soc. 34, 828 (1938); A. von Hippel, Phys. Rev. 54, 1096 (1938).

For example, Trans. Faraday Soc. 35 (Discussion on Luminescence) (1939).

D. Blochinzew, Phys. Zeits. Sowjetunion 12, 587 (1937).

W. de Groot, Physica 6, 275 (1939).

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