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ZnO-ZnS porous films by sulfidation of three-dimensional ZnO porous templates: Evolution of inward growth during sulfidation process

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Title
ZnO-ZnS porous films by sulfidation of three-dimensional ZnO porous templates: Evolution of inward growth during sulfidation process
Author(s)
Ahn H.B.; Jeong Yong Lee
Publication Date
2013
Journal
APPLIED PHYSICS EXPRESS, v.6, no.9, pp.5501 -
Publisher
JAPAN SOC APPLIED PHYSICS
Abstract
ZnO-ZnS porous films were formed by low-temperature sulfidation of three-dimensional (3D) ZnO porous templates. The conversion of ZnO to ZnS initialized at the ZnO surface, accompanied by volume expansion. ZnS grains were preferentially formed at the surface of ZnO blocking the pseudotriangular pores. During sulfidation, voids were generated at the interfaces between ZnO and the silicon substrate because of the Kirkendall effect. However, Kirkendall voids were refilled with ZnS grains by further sulfidation. Results indicate that the unique and complex structure of 3D ZnO porous templates facilitated the change of the ZnS growth mechanism from outward to inward. © 2013 The Japan Society of Applied Physics.
URI
https://pr.ibs.re.kr/handle/8788114/1410
ISSN
1882-0778
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
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