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Triplet to Triplet Absorption in Organic Molecules for Use in Photochromic Devices.

Autor: John L Kropp; Maurice W Windsor; TRW SYSTEMS GROUP REDONDO BEACH CALIF.
Editorial: Ft. Belvoir Defense Technical Information Center MAR 1971.
Edición/Formato:   Libro : Inglés (eng)Ver todas las ediciones y todos los formatos
Base de datos:WorldCat
Resumen:
The photochromic behavior of hetero-aromatic molecules was studied. Particular attention has been given to the transient absorption in the polymer host poly(methyl methacrylate). Compounds studied include 1,2;5,6 dibenzacridine, dibenzo(c, g)carbazole, 6 aminochrysene and alpha-naphthoflavone. The latter two compounds show little triplet-triplet absorption, however, the former two compounds do show good absorption.  Leer más
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Detalles

Tipo de documento: Libro/Texto
Todos autores / colaboradores: John L Kropp; Maurice W Windsor; TRW SYSTEMS GROUP REDONDO BEACH CALIF.
Número OCLC: 227622414
Descripción: 78 p.

Resumen:

The photochromic behavior of hetero-aromatic molecules was studied. Particular attention has been given to the transient absorption in the polymer host poly(methyl methacrylate). Compounds studied include 1,2;5,6 dibenzacridine, dibenzo(c, g)carbazole, 6 aminochrysene and alpha-naphthoflavone. The latter two compounds show little triplet-triplet absorption, however, the former two compounds do show good absorption. The effect of varying concentration upon T-T absorption was studied and high concentrations (0.01M) seem to show lower intensities of triplet absorption than do some less concentrated samples. The degradation of the samples under exposure to sunlight and an Hg lamp are studied. The degradation due to sunlight is found to be partially reversed overnight. Dibenzo(c, g)carbazole shows far more degradation than does 1,2;5,6 dibenzacridine. Further possible uses of photochromics in military applications are considered. (Author).

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Datos enlazados


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