Photothermal dynamics at the surface of copper phthalocyanine solid revealed by time-resolved regular reflection spectroscopy

被引：7

作者：

Fukumura, H ^{[1
]}

Yoneda, Y ^{[1
]}

Takahashi, H ^{[1
]}

Masuhara, H ^{[1
]}

机构：

[1] KYOTO INST TECHNOL, KYOTO 612, JAPAN

来源：

CHEMISTRY LETTERS | 1996年 / 07期

关键词：

D O I：

10.1246/cl.1996.509

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Flat surfaces of compressed pellets made of copper phthalocyanine powders were excited by nanosecond laser pulses and their time-resolved extinction coefficients were obtained by using regular I reflection spectroscopy independent of Kramers-Kronig transformation. The results showed transient depletion at the peaks of the ground state absorption spectra, which is due to a change in thermal population in vibrational states. The decay of the transient depletion was well described with the temperature dependency of extinction coefficient based on Sulzer-Wieland approximation and one-dimensional thermal diffusion towards the deep parts of the pellet samples.

引用

页码：509 / 510

页数：2

共 16 条

[11] SPECTRA OF POLYCRYSTALLINE PHTHALOCYANINES IN VISIBLE REGION [J].