Search Results - "Ho Sung, Ji"

Visualization and Investigation of Charge Transport in Mixed‐Halide Perovskite via Lateral‐Structured Photovoltaic Devices by Yang, Seok Joo, Kim, Min, Ko, Hyomin, Sin, Dong Hun, Sung, Ji Ho, Mun, Jungho, Rho, Junsuk, Jo, Moon‐Ho, Cho, Kilwon

“…Mixed‐halide perovskites, CH3NH3PbI3−xClx, can be used to fabricate highly efficient perovskite solar cells; the presence of chlorine ions affects the…”
Get full text

Deterministic Two-Dimensional Polymorphism Growth of Hexagonal n‑Type SnS2 and Orthorhombic p‑Type SnS Crystals by Ahn, Ji-Hoon, Lee, Myoung-Jae, Heo, Hoseok, Sung, Ji Ho, Kim, Kyungwook, Hwang, Hyein, Jo, Moon-Ho

“…van der Waals layered materials have large crystal anisotropy and crystallize spontaneously into two-dimensional (2D) morphologies. Two-dimensional materials…”
Get full text

Thermoelectric materials by using two-dimensional materials with negative correlation between electrical and thermal conductivity by Lee, Myoung-Jae, Ahn, Ji-Hoon, Sung, Ji Ho, Heo, Hoseok, Jeon, Seong Gi, Lee, Woo, Song, Jae Yong, Hong, Ki-Ha, Choi, Byeongdae, Lee, Sung-Hoon, Jo, Moon-Ho

“…In general, in thermoelectric materials the electrical conductivity σ and thermal conductivity κ are related and thus cannot be controlled independently…”
Get full text

Selectively tunable optical Stark effect of anisotropic excitons in atomically thin ReS2 by Sim, Sangwan, Lee, Doeon, Noh, Minji, Cha, Soonyoung, Soh, Chan Ho, Sung, Ji Ho, Jo, Moon-Ho, Choi, Hyunyong

“…The optical Stark effect is a coherent light–matter interaction describing the modification of quantum states by non-resonant light illumination in atoms,…”
Get full text

Interlayer orientation-dependent light absorption and emission in monolayer semiconductor stacks by Heo, Hoseok, Sung, Ji Ho, Cha, Soonyoung, Jang, Bo-Gyu, Kim, Joo-Youn, Jin, Gangtae, Lee, Donghun, Ahn, Ji-Hoon, Lee, Myoung-Jae, Shim, Ji Hoon, Choi, Hyunyong, Jo, Moon-Ho

“…Two-dimensional stacks of dissimilar hexagonal monolayers exhibit unusual electronic, photonic and photovoltaic responses that arise from substantial…”
Get full text

1s-intraexcitonic dynamics in monolayer MoS2 probed by ultrafast mid-infrared spectroscopy by Cha, Soonyoung, Sung, Ji Ho, Sim, Sangwan, Park, Jun, Heo, Hoseok, Jo, Moon-Ho, Choi, Hyunyong

“…The 1 s exciton—the ground state of a bound electron-hole pair—is central to understanding the photoresponse of monolayer transition metal dichalcogenides…”
Get full text

Rotation-Misfit-Free Heteroepitaxial Stacking and Stitching Growth of Hexagonal Transition-Metal Dichalcogenide Monolayers by Nucleation Kinetics Controls by Heo, Hoseok, Sung, Ji Ho, Jin, Gangtae, Ahn, Ji-Hoon, Kim, Kyungwook, Lee, Myoung-Jae, Cha, Soonyoung, Choi, Hyunyong, Jo, Moon-Ho

“…2D vertical stacking and lateral stitching growth of monolayer (ML) hexagonal transition‐metal dichalcogenides are reported. The 2D heteroepitaxial…”
Get full text

Ultrafast quantum beats of anisotropic excitons in atomically thin ReS2 by Sim, Sangwan, Lee, Doeon, Trifonov, Artur V., Kim, Taeyoung, Cha, Soonyoung, Sung, Ji Ho, Cho, Sungjun, Shim, Wooyoung, Jo, Moon-Ho, Choi, Hyunyong

“…Quantum beats, periodic oscillations arising from coherent superposition states, have enabled exploration of novel coherent phenomena. Originating from strong…”
Get full text

Enhancement of the anisotropic photocurrent in ferroelectric oxides by strain gradients by Chu, Kanghyun, Jang, Byung-Kweon, Sung, Ji Ho, Shin, Yoon Ah, Lee, Eui-Sup, Song, Kyung, Lee, Jin Hong, Woo, Chang-Su, Kim, Seung Jin, Choi, Si-Young, Koo, Tae Yeong, Kim, Yong-Hyun, Oh, Sang-Ho, Jo, Moon-Ho, Yang, Chan-Ho

“…The phase separation of multiple competing structural/ferroelectric phases has attracted particular attention owing to its excellent electromechanical…”
Get full text

Ultra-high modulation depth exceeding 2,400% in optically controlled topological surface plasmons by Sim, Sangwan, Jang, Houk, Koirala, Nikesh, Brahlek, Matthew, Moon, Jisoo, Sung, Ji Ho, Park, Jun, Cha, Soonyoung, Oh, Seongshik, Jo, Moon-Ho, Ahn, Jong-Hyun, Choi, Hyunyong

“…Modulating light via coherent charge oscillations in solids is the subject of intense research topics in opto-plasmonics. Although a variety of methods are…”
Get full text

Epitaxial van der Waals Contacts between Transition-Metal Dichalcogenide Monolayer Polymorphs by Lee, Chang-Soo, Oh, Seung Jae, Heo, Hoseok, Seo, Seung-Young, Kim, Juho, Kim, Yong Hyeon, Kim, Donghwi, Ngome Okello, Odongo Francis, Shin, Hocheol, Sung, Ji Ho, Choi, Si-Young, Kim, Jun Sung, Kim, Jong Kyu, Jo, Moon-Ho

“…We have achieved heteroepitaxial stacking of a van der Waals (vdW) monolayer metal, 1T’-WTe2, and a semiconductor, 2H-WSe2, in which a distinctively low…”
Get full text

Wavelength-dependent visible light response in vertically aligned nanohelical TiO2-based Schottky diodes by Kwon, Hyunah, Sung, Ji Ho, Lee, Yuna, Jo, Moon-Ho, Kim, Jong Kyu

“…Enhancements in photocatalytic performance under visible light have been reported by noble metal functionalization on nanostructured TiO2; however, the…”
Get full text

Atomic Layer-by-Layer Thermoelectric Conversion in Topological Insulator Bismuth/Antimony Tellurides by Sung, Ji Ho, Heo, Hoseok, Hwang, Inchan, Lim, Myungsoo, Lee, Donghun, Kang, Kibum, Choi, Hee Cheul, Park, Jae-Hoon, Jhi, Seung-Hoon, Jo, Moon-Ho

“…Material design for direct heat-to-electricity conversion with substantial efficiency essentially requires cooperative control of electrical and thermal…”
Get full text

Publisher Correction: Ultrafast quantum beats of anisotropic excitons in atomically thin ReS2 by Sim, Sangwan, Lee, Doeon, Trifonov, Artur V., Kim, Taeyoung, Cha, Soonyoung, Sung, Ji Ho, Cho, Sungjun, Shim, Wooyoung, Jo, Moon-Ho, Choi, Hyunyong

“…In the originally published HTML and PDF versions of this article, Figs. 3g and 4d contained typesetting errors affecting the way the data points were…”
Get full text

Detection of electrically formed photosensitive area in Ca-doped BiFeO3 thin films by Kamala Bharathi, K., Lee, Won-Mo, Ho Sung, Ji, Soo Lim, Ji, Jin Kim, Seung, Chu, Kanghyun, Won Park, Jung, Hyun Song, Jong, Jo, Moon-Ho, Yang, Chan-Ho

“…We report on the visualization of n-p junctions formed by oxygen vacancy movement under the application of an electric field in a Ca-doped BiFeO3 thin film…”
Get full text

Ultrafast Hot-Carrier Photovoltaics of Type‑I Monolayer Heterojunctions in the Broad Spectral Ranges by Sung, Ji Ho, Cha, Soonyoung, Heo, Hoseok, Sim, Sangwan, Kim, Juho, Choi, Hyunyong, Jo, Moon-Ho

“…Strong interlayer photoresponses in monolayer (ML) semiconductor stacks, such as substantial light absorption and charge separation across interlayer band…”
Get full text

Composition Control of Plasmon–Phonon Interaction Using Topological Quantum-Phase Transition in Photoexcited (Bi1–x In x )2Se3 by Sim, Sangwan, Park, Jun, Koirala, Nikesh, Lee, Seungmin, Brahlek, Matthew, Moon, Jisoo, Salehi, Maryam, Kim, Jaeseok, Cha, Soonyoung, Sung, Ji Ho, Jo, Moon-Ho, Oh, Seongshik, Choi, Hyunyong

“…Plasmonics is a technology aiming at light modulation via collective charge oscillations. Topological insulators, where Dirac-like metallic surfaces coexist…”
Get full text

Single ferroelectric-domain photovoltaic switch based on lateral BiFeO3 cells by Ho Sung, Ji, Lee, Won-Mo, Hong Lee, Jin, Chu, Kanghyun, Lee, Donghun, Moya, Xavier, Mathur, Neil D, Yang, Chan-Ho, Park, Jae-Hoon, Jo, Moon-Ho

“…The bistability of ferroelectric polarization states serves as a basis for solid-state memory. This phenomenon can also yield an interesting photovoltaic…”
Get full text

Coplanar semiconductor–metal circuitry defined on few-layer MoTe2 via polymorphic heteroepitaxy by Sung, Ji Ho, Heo, Hoseok, Si, Saerom, Kim, Yong Hyeon, Noh, Hyeong Rae, Song, Kyung, Kim, Juho, Lee, Chang-Soo, Seo, Seung-Young, Kim, Dong-Hwi, Kim, Hyoung Kug, Yeom, Han Woong, Kim, Tae-Hwan, Choi, Si-Young, Kim, Jun Sung, Jo, Moon-Ho

Get full text

Ultrafast mid-infrared intraexcitonic spectroscopy of monolayer MoS2 by Soonyoung Cha, Ji Ho Sung, Jooyoun Kim, Sangwan Sim, Moon-Ho Jo, Hyunyong Choi

“…We report the first ultrafast mid-infrared (IR) spectroscopy in monolayer MoS 2 . The observed mid-IR dynamics show multiple, yet broadened absorption,…”
Get full text