Accession Number:

AD0613306

Title:

SOME SOLID STATE STUDIES OF SILVER-DOPED WO3,

Descriptive Note:

Corporate Author:

CORNELL UNIV ITHACA N Y

Personal Author(s):

Report Date:

1959-12-19

Pagination or Media Count:

9.0

Abstract:

A material corresponding to Ag0.010WO3 was isolated from the thermal equilibration of WO3 with various sources of silver. Single crystal studies indicate that it is orthorhombic a 7.35 A, b 3.73 A, and c 3.85 A and that it conducts as a metal between 25 and 600C specific resistivity increases linearly from 0.072 ohm-cm at 25C to 0.155 ohm-cm at 600C.. The electron mobility at 25C. of 0.44 sq. cmvolt sec. is approximately the same as that previously observed in thallium tungsten bronze. It is proposed that Ag0.010WO3 represents a defect structure in which the 5 d conduction band of WO3 is populated by electrons from the silver atoms and in which a more symmetric structure of WO3 has been stabilized by configurational entropy. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE