ICTS:29117

Video URL

Van der Waals Epitaxial Growth of 2D/Quasi-2D Materials and Their Prospects for Optoelectronic and …

Van der Waals Epitaxial Growth of 2D/Quasi-2D Materials and Their Prospects for Optoelectronic and Spintronic Devices

(2024). Van der Waals Epitaxial Growth of 2D/Quasi-2D Materials and Their Prospects for Optoelectronic and Spintronic Devices . SciVideos. https://youtu.be/9d278emAdFw

Van der Waals Epitaxial Growth of 2D/Quasi-2D Materials and Their Prospects for Optoelectronic and Spintronic Devices . SciVideos, Jul. 16, 2024, https://youtu.be/9d278emAdFw 

          @misc{ scivideos_ICTS:29117,
            doi = {},
            url = {https://youtu.be/9d278emAdFw},
            author = {},
            keywords = {},
            language = {en},
            title = {Van der Waals Epitaxial Growth of 2D/Quasi-2D Materials and Their Prospects for Optoelectronic and Spintronic Devices },
            publisher = {},
            year = {2024},
            month = {jul},
            note = {ICTS:29117 see, \url{https://scivideos.org/icts-tifr/29117}}
          }
Vidya Kochat
Talk numberICTS:29117
Source RepositoryICTS-TIFR
Source EventEngineered 2D Quantum Materials
Collection

Abstract

Van der Waals (vdW) epitaxy is the growth mechanism of epitaxial layers on crystalline substrates, where the weak vdW forces govern epilayer-substrate interaction. This technique leads to heterointerfaces with negligible strain, despite large lattice mismatch and thermal expansion coefficients. With advances in the large area synthesis of 2D materials and heterostructures, it is important to comprehend the growth mechanism, prospects and challenges of vdW epitaxy to grow 2D materials on various crystalline substrates. In this talk, I will discuss the effects of various growth factors such as structure and symmetries of the substrate, growth temperature, interfacial strain and growth kinetics that ultimately controls the lateral coverage and thickness of the 2D/quasi-2D layers. Two specific cases of vdW epitaxial growth by chemical vapor deposition (CVD) will be discussed in detail: (1) quasi-2D system of Cr1+xTe2 and (2) monolayer WSe2, on crystalline substrates such as c-plane sapphir...