Scanning near‐field optical microscopy/spectroscopy of thin organic films
作者:
L. A. Nagahara,
H. Tokumoto,
期刊:
Journal of Vacuum Science&Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena
(AIP Available online 1996)
卷期:
Volume 14,
issue 2
页码: 800-803
ISSN:1071-1023
年代: 1996
DOI:10.1116/1.588716
出版商: American Vacuum Society
关键词: THIN FILMS;ORGANIC POLYMERS;ORGANOMETALLIC COMPOUNDS;DYES;OPTICAL PROPERTIES;OPTICAL MICROSCOPY;VISIBLE SPECTRA;OPTICAL SPECTROMETERS;DATA ACQUISITION;PPV;organic dyes
数据来源: AIP
摘要:
We have used a scanning near‐field optical microscope to investigate the optical properties of a thin organic film consisting of poly(phenylene vinylene) and tris(8‐hydroxy)quinoline aluminum. Near‐field optical images taken in transmission mode using a 488 nm laser light revealed numerous ‘‘dark spots’’ scattered randomly across the film; however, the dark spots were not related to the surface topography. These dark spots ranged in size from 100–300 nm in diameter. The nature of the dark spots was attributed to an increase in the absorption at 488 nm as a result of local variations in the poly(phenylene vinylene) film.
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