Journal article
Synthesis of two-dimensional van der waals superlattices, heterostructures, and alloys from conversion of sequentially layered sub-nanometer metal films
Materials today. Nano, Vol.22, p.100319
06/2023
DOI: 10.1016/j.mtnano.2023.100319
Abstract
Manipulation of bulk material properties by controlling layer-by-layer chemistry and structure of nanomaterials has remained an overarching goal of nanoscience and nanoengineering. In the case of two-dimensional (2D) materials, heterostructures consisting of different compositions, stacking, and orientation can serve as a platform for designing bulk material properties; however, fundamental challenges associated with materials processes have limited material quality and impeded scalability. Most attempts to overcome this limitation have relied on slow layer-by-layer growth or meticulous transfer of grown single layers. Our work describes a method to directly convert easily fabricated sub-nanometer metal multilayer heterostructures on both sapphire and SiO2 substrates followed by conversion to 2D van der Waals superlattices, heterostructures, and alloys. These materials exhibit novel bulk properties compared to individual 2D layers themselves including reduced bandgap, enhanced light-matter coupling, and improved catalytic performance. The process versatility enables tunable orientation, layer structure, and chemistry in an exciting class of 2D nanomaterials and provides an opportunity to generate a wide range of artificially stacked multicompositional 2D structures with controlled morphologies.
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Details
- Title: Subtitle
- Synthesis of two-dimensional van der waals superlattices, heterostructures, and alloys from conversion of sequentially layered sub-nanometer metal films
- Creators
- M.J. Motala - United States Air Force Research LaboratoryX. Zhang - Rice UniversityP. Kumar - University of PennsylvaniaE.F. Oliveira - Universidade Estadual de Campinas (UNICAMP)A. Benton - University of DaytonP. Miesle - University of DaytonR. Rao - United States Air Force Research LaboratoryP.R. Stevenson - United States Air Force Research LaboratoryD. Moore - United States Air Force Research LaboratoryA. Alfieri - University of PennsylvaniaJ. Lynch - University of PennsylvaniaD. Austin - United States Air Force Research LaboratoryS. Post - United States Air Force Research LaboratoryG. Gao - Rice UniversityS. Ma - Rice UniversityH. Zhu - Rice UniversityZhe Wang - University of Iowa, Chemical and Biochemical EngineeringI. Petrov - University of Illinois Urbana-ChampaignE.A. Stach - University of PennsylvaniaW.J. Kennedy - United States Air Force Research LaboratoryS. Vangala - University of PennsylvaniaJ.M. Tour - Rice UniversityD.S. Galvao - Universidade Estadual de Campinas (UNICAMP)D. Jariwala - United States Air Force Research LaboratoryC. Muratore - University of PennsylvaniaM. Snure - Rice UniversityP.M. Ajayan - University of DaytonN.R. Glavin - Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, 45433, USA
- Resource Type
- Journal article
- Publication Details
- Materials today. Nano, Vol.22, p.100319
- DOI
- 10.1016/j.mtnano.2023.100319
- ISSN
- 2588-8420
- eISSN
- 2588-8420
- Publisher
- Elsevier Ltd
- Language
- English
- Date published
- 06/2023
- Academic Unit
- Chemical and Biochemical Engineering
- Record Identifier
- 9984696147002771
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