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Proceedings Paper

Nanometer-scale fabrication and data storage on charge transfer complex TEA(TCNQ)2 single crystal
Author(s): Xinxian Bao; Haifeng Chen; Zhongfan Liu
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Paper Abstract

Nanometer-scale holes and words were reproducibly create don a typical organic charge transfer compound, Triethylammonium Bis-7,7,8,8-tetracyanoquinodimethanide (TEA(TCNQ(2) single crystal, using scanning tunneling microscope in ambient conditions by applying a pulse voltage across the tunneling gap. The decomposition products of TEA(TCNQ)2 single crystal were investigated with mass spectroscopy by applying a pulse to the crystal in a vacuum tube. TEA was the sole product being detected. A micro-Raman Spectroscopy was used to fabricate and characterize the sample using a He-Ne laser. A dots array was written by a focused beam and in situ Raman spectra showed the same was decomposited. The most possible mechanism of holes formation appears to be TEA(TCNQ)2 decomposition and TEA evaporation by heating effect of STM current. Comparing data storage in TEA(TCNQ)2 single crystal with a market-sell CD-R disk, the writing threshold value of TEA(TCNQ)2 is much smaller than that of the CD-R disk. This kind of organic conductor may be a promising material for the STM-based high density storage and popular optical storage techniques.

Paper Details

Date Published: 17 April 2000
PDF: 8 pages
Proc. SPIE 3937, Micro- and Nano-photonic Materials and Devices, (17 April 2000); doi: 10.1117/12.382808
Show Author Affiliations
Xinxian Bao, Peking Univ. (China)
Haifeng Chen, Peking Univ. (China)
Zhongfan Liu, Peking Univ. (China)

Published in SPIE Proceedings Vol. 3937:
Micro- and Nano-photonic Materials and Devices
Joseph W. Perry; Axel Scherer, Editor(s)

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