✦ LIBER ✦

Thermoelectric Properties of Boron and Boron Phosphide Films

✍ Scribed by K. Kumashiro; K. Hirata; K. Sato; T. Yokoyama; T. Aisu; T. Ikeda; M. Minaguchi

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 170 KB
Volume: 154
Category: Article
ISSN: 0022-4596
DOI: 10.1006/jssc.2000.8806

No coin nor oath required. For personal study only.

✦ Synopsis

Amorphous boron and boron phosphide 5lms were prepared on silica glass by a solid source molecular beam deposition (SSMBD) method and a low-pressure chemical vapor deposition method (LPCVD) by adapting gas source molecular beam deposition at a reactant pressure of 1.33 Pa. The 5lms were characterized by X-ray di4raction, X-ray photon electron spectroscopy (XPS), and Hall e4ect measurements. The experimental results on 5lm growth were correlated with the calculation by an ab initio molecular orbital method. The high-temperature electrical conductivity and thermoelectric power of these 5lms were measured to evaluate the thermoelectric 5gure-of-merit (Z), which was determined by the electrical conductivity of the 5lms. In particular, the Z value for SSMBD boron and LPCVD boron phosphide 5lms was higher (10 ؊5 / K) than those of LPCVD boron 5lms, indicating that they are promising high-temperature thermoelectric materials.

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