Detection of Transient Spectra within Polycrystalline Samples Using the New Technique of Diffuse Reflectance Flash Photolysis
- 1 November 1982
- journal article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 36 (6) , 673-675
- https://doi.org/10.1366/0003702824639213
Abstract
A powdered semiconductor (ZnO) and a polycrystalline sample of perovskite-type LaAIO3 doped with 1% Cr(III) have been subjected to the recently developed technique of diffuse reflectance flash photolysis. In both cases transient absorption spectra are obtained from these powdered, nontransparent samples and these are reported here. Thus, the method allows the direct observation of absorption by transient species formed following pulsed irradiation within powdered samples as well as from highly scattering interfaces demonstrating that the technique has high potential for investigating heterogeneous photochemical systems.Keywords
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