New Approach to Silver Halide Photography Using Radical Cation Chemistry

Gould, I.; Lenhard, J. R.; Muenter, A. A.; Godleski, Stephen A.; Farid, S.

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Author

Gould, I.
Lenhard, J. R.
Muenter, A. A.
Godleski, Stephen A.
Farid, S.

Journal title

Pure Applied Chemistry

Date Published

2001-01-01

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URI

http://hdl.handle.net/20.500.12648/2123

Abstract

A new mechanism for spectral sensitization of silver halide is described, which can potentially double the sensitivity of photographic emulsions. The photooxidized sensitizing dye is trapped using an organic donor molecule, which fragments to form a cation and a reducing radical, which injects an electron into the conduction band of the silver halide. In this way, two conduction-band electrons can be produced for each absorbed photon.

Citation

Gould, I.; Lenhard, J.R.; Muenter, A.A.; Godleski, S.A.; Farid, S. New Approach to Silver Halide Photography Using Radical Cation Chemistry. Pure Appl. Chem. 2001, 73, 455-458. Available on publisher's site at: http://iupac.org/publications/pac

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Chemistry Faculty Publications