New approach to silver halide photography using radical cation chemistry

被引：15

作者：

Gould, IR ^{[1
]}

Lenhard, JR

Muenter, AA

Godleski, SA

Farid, S

机构：

[1] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA

[2] Eastman Kodak Co, Res Labs, Rochester, NY 14650 USA

来源：

PURE AND APPLIED CHEMISTRY | 2001年 / 73卷 / 03期

关键词：

D O I：

10.1351/pac200173030455

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：455 / 458

页数：4

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