Journal
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
Volume 209, Issue 1, Pages 135-138Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssa.201026549
Keywords
electron beam irradiation; phase transformations; silver selenide thin films; thermal stress
Funding
- State Key Program for Basic Research of China [2010CB630704]
- National Natural Science Foundation of China [10804048]
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The microstructure of room-temperature silver selenide thin films prepared by pulsed laser deposition (PLD) was investigated by transmission electron microscope (TEM). Two phases existed in room-temperature silver selenide. One was orthorhombic phase (O) and the other was identified as monoclinic phase (M) by TEM tilting experiments. The monoclinic phase can transform to orthorhombic phase along [100](M) direction under the irradiation of electron beam. Thermal stress induced by the difference of coefficient of thermal expansion (CTE) of Ag2Se and Cu gridding/NaCl substrate is thought to play an important role in this phase transformation. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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