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Sunmin Ryu

As seen in: Nature, MDPI, ACS Publications, Science Magazine, Royal Society of Chemistry
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Articles by Sunmin Ryu

Tin perovskite transistors stabilized through volatile coordination

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By Geonwoong Park, Dong Hyeon Lee, Youjin Reo, Wonryeol Yang, Soohwan Yoo, Wantae Park, Hyesun Kim, Sungjae Cho, Mingoo Kwon, Sunmin Ryu, Liping Du, Ao Liu, Ji-Sang Park, Huihui Zhu, Yong-Young Noh, Hyeyeon Jung
| Nature Verified
Abstract Tin (Sn2+) halide perovskites are promising lead-free semiconductors for optoelectronic and electronic devices, owing to their tunable bandgaps and favourable charge transport1,2. However, their practical implementation is fundamentally limited by an intrinsic redox instability at undercoordinated Sn2+ sites, which drives uncontrolled self-p-doping and rapid oxidative degradation3,4.
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Single-Shot Multispectral Encoding: Advancing Optical Lithography for Encryption and Spectroscopy

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By Geonwoong Park, Sunmin Ryu, Hyewon Shim, Hyunsuk Yun
| ACS Publications
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Insights into 2D Materials Home

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By Hui Zhao, Sunmin Ryu, Jae Jeong, Sojung Kang
| Royal Society of Chemistry Verified
About this collection 2D materials with atomic scale thinness have emerged as a new form of nanomaterial. While graphene was the focus of early studies, since 2010 hundreds of other types of 2D materials have been investigated. This includes elemental 2D materials such as phosphorene, borophene, silicene and antimonene, as well as compound materials such as transition metal chalcogenides and oxides, hexagonal boron nitride, MXenes, and organic-inorganic metal halide layered perovskites.
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Epitaxial single-crystal hexagonal boron nitride multilayers on Ni (111) - Nature

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By Sunghwan Jin, Yan Wang, Meihui Wang, Gwangwoo Kim, Sunmin Ryu, Hu Young Jeong, Rodney S. Ruoff, Manish Chhowalla, Hyeon Suk Shin
| Nature Verified
Abstract Large-area single-crystal monolayers of two-dimensional (2D) materials such as graphene1,2,3, hexagonal boron nitride (hBN)4,5,6 and transition metal dichalcogenides7,8 have been grown. hBN is considered to be the ‘ideal’ dielectric for 2D-materials-based field-effect transistors (FETs), offering the potential for extending Moore’s law9,10.
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