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Title: Enhanced van der Waals epitaxy via electron transfer enabled interfacial dative bond formation

Journal Article · · Physical Review Materials

Enhanced van der Waals (vdW) epitaxy of semiconductors on a layered vdW substrate is identified as the formation of dative bonds. For example, despite that NbSe2 is a vdW layeredmaterial, first-principles calculations reveal that the bond strength at a CdTe-NbSe2 interface is five times as large as that of vdW interactions at a CdTe-graphene interface. Finally, the unconventional chemistry here is enabled by an effective net electron transfer from Cd dangling-bond states at a CdTe surface to metallic nonbonding NbSe2 states, which is a necessary condition to activate the Cd for enhanced binding with Se.

Research Organization:
Rensselaer Polytechnic Inst., Troy, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1408769
Alternate ID(s):
OSTI ID: 1408797
Journal Information:
Physical Review Materials, Vol. 1, Issue 6; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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