Abstract

Luminescent films of ZnS [Mn], Zn<sub>2</sub>SiO<sub>4</sub> [Mn], Zn<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> [Mn], CaF<sub>2</sub> [Mn], and CaWO<sub>4</sub> [W] have been formed by evaporation in a vacuum and a subsequent heat treatment. Most of the films may be made either transparent or fogged depending on the post-heat treatment. The luminescent brightness of the fogged films, under cathode ray excitation, approaches the brightness of the bulk powdered material. The brightness of the transparent films is limited chiefly by internal reflection. In general, the phosphor chemistry of the powdered materials has been found to be applicable to thin films.

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  1. J. H. De Boer and C. J. Dippel, U. S. Patent No. 1,954,691 (April 10, 1934).
  2. F. E. Williams, J. Opt. Soc. Am. 37, 302 (1947).
  3. N. C. Jamison, Philips Laboratories (personal communication).
  4. Studer, Cusano, and Young, J. Opt. Soc. Am. 41, 559 (1951).
  5. H. W. Leverenz, An Introduction to Luminescence of Solids (John Wiley and Sons, Inc., 1950), pp. 432–435.
  6. F. J. Studer and D. A. Cusano, J. Opt. Soc. Am. 45,493 (1955).
  7. Spectra Brightness Spotmeter; ½° ultra-sensitive model, Photo Research Corporation, Hollywood, California.
  8. The luminescent materials used in this study, with the exception of CaF2, were supplied by E. I. DuPont de Nemours and Company, and Sylvania Electric Products, Inc.
  9. D. A. Lyon, Hill Building, Washington, D. C., patent pending (CuI conducting films are not as stable as the SnOx films).
  10. R. J. Ginther, J. Electrochem. Soc. 101, 248 (1954).
  11. F. A. Kröger, Luminescence in Solids Containing Manganese (N. V. Drukkerij Jacob van Campen, Amsterdam, 1940).
  12. A. L. Smith, J. Electrochem. Soc. 98, 363 (1951).
  13. The electron beam current of 10µa represents the total current collected, including secondaries, at the post-ultor (post-deflection) electrode of the tube. The actual current falling on the films is less than this value.
  14. P. H. Dowling and J. R. Sewell, J. Electrochem. Soc. 100, 22 (1953).
  15. L. R. Koller and E. D. Alden, Phys. Rev. 83, 684 (1951).

Alden, E. D.

L. R. Koller and E. D. Alden, Phys. Rev. 83, 684 (1951).

Cusano,

Studer, Cusano, and Young, J. Opt. Soc. Am. 41, 559 (1951).

Cusano, D. A.

F. J. Studer and D. A. Cusano, J. Opt. Soc. Am. 45,493 (1955).

De Boer, J. H.

J. H. De Boer and C. J. Dippel, U. S. Patent No. 1,954,691 (April 10, 1934).

Dippel, C. J.

J. H. De Boer and C. J. Dippel, U. S. Patent No. 1,954,691 (April 10, 1934).

Dowling, P. H.

P. H. Dowling and J. R. Sewell, J. Electrochem. Soc. 100, 22 (1953).

Ginther, R. J.

R. J. Ginther, J. Electrochem. Soc. 101, 248 (1954).

Jamison, N. C.

N. C. Jamison, Philips Laboratories (personal communication).

Koller, L. R.

L. R. Koller and E. D. Alden, Phys. Rev. 83, 684 (1951).

Kröger, F. A.

F. A. Kröger, Luminescence in Solids Containing Manganese (N. V. Drukkerij Jacob van Campen, Amsterdam, 1940).

Leverenz, H. W.

H. W. Leverenz, An Introduction to Luminescence of Solids (John Wiley and Sons, Inc., 1950), pp. 432–435.

Lyon, D. A.

D. A. Lyon, Hill Building, Washington, D. C., patent pending (CuI conducting films are not as stable as the SnOx films).

Sewell, J. R.

P. H. Dowling and J. R. Sewell, J. Electrochem. Soc. 100, 22 (1953).

Smith, A. L.

A. L. Smith, J. Electrochem. Soc. 98, 363 (1951).

Studer,

Studer, Cusano, and Young, J. Opt. Soc. Am. 41, 559 (1951).

Studer, F. J.

F. J. Studer and D. A. Cusano, J. Opt. Soc. Am. 45,493 (1955).

Williams, F. E.

F. E. Williams, J. Opt. Soc. Am. 37, 302 (1947).

Young,

Studer, Cusano, and Young, J. Opt. Soc. Am. 41, 559 (1951).

Other (15)

J. H. De Boer and C. J. Dippel, U. S. Patent No. 1,954,691 (April 10, 1934).

F. E. Williams, J. Opt. Soc. Am. 37, 302 (1947).

N. C. Jamison, Philips Laboratories (personal communication).

Studer, Cusano, and Young, J. Opt. Soc. Am. 41, 559 (1951).

H. W. Leverenz, An Introduction to Luminescence of Solids (John Wiley and Sons, Inc., 1950), pp. 432–435.

F. J. Studer and D. A. Cusano, J. Opt. Soc. Am. 45,493 (1955).

Spectra Brightness Spotmeter; ½° ultra-sensitive model, Photo Research Corporation, Hollywood, California.

The luminescent materials used in this study, with the exception of CaF2, were supplied by E. I. DuPont de Nemours and Company, and Sylvania Electric Products, Inc.

D. A. Lyon, Hill Building, Washington, D. C., patent pending (CuI conducting films are not as stable as the SnOx films).

R. J. Ginther, J. Electrochem. Soc. 101, 248 (1954).

F. A. Kröger, Luminescence in Solids Containing Manganese (N. V. Drukkerij Jacob van Campen, Amsterdam, 1940).

A. L. Smith, J. Electrochem. Soc. 98, 363 (1951).

The electron beam current of 10µa represents the total current collected, including secondaries, at the post-ultor (post-deflection) electrode of the tube. The actual current falling on the films is less than this value.

P. H. Dowling and J. R. Sewell, J. Electrochem. Soc. 100, 22 (1953).

L. R. Koller and E. D. Alden, Phys. Rev. 83, 684 (1951).

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