TRANSIENT ABSORPTION SPECTROSCOPIC STUDY ON PHOTOTHERMAL PROCESS AND LASER-ABLATION OF POLY(N-VINYLCARBAZOLE) FILM

被引：23

作者：

FUKUMURA, H ^{[1
]}

HAMANO, K ^{[1
]}

MASUHARA, H ^{[1
]}

机构：

[1] KYOTO INST TECHNOL, DEPT POLYMER SCI & ENGN, KYOTO 606, JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 47期

关键词：

D O I：

10.1021/j100149a002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanosecond laser photolysis of poly(N-vinylcarbazole) film did not give any appreciable transient absorption above an excitation intensity of 25 MJ/cm2. Only a tail of the ground-state absorption was observed, which was analyzed to estimate the temperature below, at, and above laser ablation threshold (60 MJ/CM2). The temperature rise time was less than 50 ns, and the film cooled in a few microseconds. The maximum temperature attained at the excitation intensity just below the threshold was close to the decomposition temperature of the film.

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页码：12110 / 12113

页数：4

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