Search Results - "Ryu, Sang‐Wan"

Technological Breakthroughs in Chip Fabrication, Transfer, and Color Conversion for High-Performance Micro-LED Displays by Ryu, Jung-El, Park, Sohyeon, Park, Yongjo, Ryu, Sang-Wan, Hwang, Kyungwook, Jang, Ho Won

“…The implementation of high-efficiency and high-resolution displays has been the focus of considerable research interest. Recently, micro light-emitting diodes…”
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Cu2O as an emerging photocathode for solar water splitting - A status review by Bagal, Indrajit V., Chodankar, Nilesh R., Hassan, Mostafa Afifi, Waseem, Aadil, Johar, Muhammad Ali, Kim, Do-Heyoung, Ryu, Sang-Wan

“…Recently, cuprous oxide (Cu2O) based photocathodes have gained research attention for hydrogen (H2) production through photoelectrochemical (PEC) water…”
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One-Pot in Situ Hydrothermal Growth of BiVO4/Ag/rGO Hybrid Architectures for Solar Water Splitting and Environmental Remediation by Patil, Santosh S., Mali, Mukund G., Hassan, Mostafa Afifi, Patil, Deepak R., Kolekar, Sanjay S., Ryu, Sang-Wan

“…BiVO 4 is ubiquitously known for its potential use as photoanode for PEC-WS due to its well-suited band structure; nevertheless, it suffers from the major…”
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Transferred monolayer MoS2 onto GaN for heterostructure photoanode: Toward stable and efficient photoelectrochemical water splitting by Hassan, Mostafa Afifi, Kim, Min-Woo, Johar, Muhammad Ali, Waseem, Aadil, Kwon, Min-Ki, Ryu, Sang-Wan

“…Solar-driven photoelectrochemical water splitting (PEC-WS) using semiconductor photoelectrodes is considered a promising solution for sustainable, renewable,…”
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Highly conversion efficiency of solar water splitting over p-Cu2O/ZnO photocatalyst grown on a metallic substrate by Tawfik, Wael Z., Hassan, Mostafa Afifi, Johar, Muhammad Ali, Ryu, Sang-Wan, Lee, June Key

“…[Display omitted] •Well-compacted p-Cu2O photocatalysts were sputtered on Ti-Mo-glass and FTO substrates.•Heterojunction structure was fabricated with ZnO…”
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Highly Durable Piezoelectric Nanogenerator by Heteroepitaxy of GaN Nanowires on Cu Foil for Enhanced Output Using Ambient Actuation Sources by Johar, Muhammad Ali, Waseem, Aadil, Hassan, Mostafa Afifi, Bagal, Indrajit V., Abdullah, Ameer, Ha, Jun‐Seok, Ryu, Sang‐Wan

“…Highly durable piezoelectric nanogenerators (PENGs) with high conversion efficiency and high power density are of great interest. Here, a foldable, scalable,…”
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Cu2O-based trifunctional catalyst for enhanced alkaline water splitting and hydrazine oxidation: Integrating sulfurization, Co incorporation, and LDH heterostructure by Burungale, Vishal V., Bae, Hyojung, Gaikwad, Mayur A., Mane, Pratik, Heo, Jiwon, Seong, Chaewon, Kang, Soon-Hyung, Ryu, Sang-Wan, Ha, Jun-Seok

“…[Display omitted] •The modified Cu2O delivered exceptional trifunctional activity for HER, OER, and HzOR.•Systematic modifications (sulfurization, Co…”
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Porous GaN Nanopyramids: Advancing Beyond Conventional Nanostructures for High‐Brightness InGaN/GaN Quantum Wells Emission by Thaalbi, Hamza, Kim, Baul, Abdullah, Ameer, Kulkarni, Mandar A., Tariq, Fawad, Din, Haseeb Ud, Cho, Yong‐Hoon, Ryu, Sang‐Wan

“…GaN nanostructures hold significant promise in advancing nanoscale light‐emitting devices. However, significant progress remains elusive, possibly due to the…”
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High Performance, Stable, and Flexible Piezoelectric Nanogenerator Based on GaN:Mg Nanowires Directly Grown on Tungsten Foil by Waseem, Aadil, Bagal, Indrajit V., Abdullah, Ameer, Kulkarni, Mandar A., Thaalbi, Hamza, Ha, Jun‐Seok, Lee, June Key, Ryu, Sang‐Wan

“…Rapid development of micro‐electromechanical systems increases the need for flexible and durable piezoelectric nanogenerators (f‐PNG) with high output power…”
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InGaN/GaN multi-quantum well nanowires: Enhanced trace-level NO2 detection for environmental and breath analysis by Shanmugasundaram, Arunkumar, Johar, Muhammad Ali, Paeng, Changung, Jeong, Yun-Jin, Abdullah, Ameer, Park, Jongsung, Ryu, Sang-Wan, Yim, Changyong, Lee, Dong-Weon

“…•First study of InGaN/GaN-MQWs for NO2 detection.•InGaN/GaN-MQWs showed excellent sensitivity (3 ppb) towards NO2.•The InGaN/GaN-MQWs exhibits excellent NO2…”
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Maximizing Photoelectrochemical Performance in Metal‐Oxide Hybrid Composites via Amorphous Exsolution—A New Exsolution Mechanism for Heterogeneous Catalysis by Kim, Myeong‐Jin, Hassan, Mostafa Afifi, Lee, Changhoon, Jung, Wan‐Gil, Bae, Hyojung, Jeon, SungHyun, Jung, WooChul, Ha, Jun‐Seok, Shim, Ji Hoon, Park, Jae‐Hoon, Ryu, Sang‐Wan, Kim, Bong‐Joong

“…Exsolution generates metal nanoparticles anchored within crystalline oxide supports, ensuring efficient exposure, uniform dispersion, and strong…”
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Improved efficiency and stability of GaN photoanode in photoelectrochemical water splitting by NiO cocatalyst by Kim, Soo Hee, Ebaid, Mohamed, Kang, Jin-Ho, Ryu, Sang-Wan

“…•NiO cocatalyst was deposited on GaN photoanode.•Photoelectrochemical water splitting performance was studied.•Higher efficiency and improved stability was…”
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Nano‐Micro‐Structured Nickel‐Cobalt Hydroxide/Ni2P2O7 Assembly on Nickel Foam: An Outstanding Electrocatalyst for Alkaline Oxygen Evolution Reaction by Chodankar, Nilesh R., Bagal, Indrajit V., Ryu, Sang‐Wan, Han, Young‐Kyu, Kim, Do‐Heyoung

“…The design and development of materials for the efficient electrochemical evolution of oxygen from hydroxyl ions in alkaline media is of prime importance for…”
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Facile Synthesis of Well-Aligned ZnO Nanowires on Various Substrates by MOCVD for Enhanced Photoelectrochemical Water-Splitting Performance by Hassan, Mostafa Afifi, Johar, Muhammad Ali, Yu, Sou Young, Ryu, Sang-Wan

“…We present results related to the growth of high-aspect-ratio ZnO nanowires (NWs) using metal–organic chemical vapor deposition based on the study of the NW…”
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A conductivity-based selective etching for next generation GaN devices by Zhang, Yu, Ryu, Sang-Wan, Yerino, Chris, Leung, Benjamin, Sun, Qian, Song, Qinghai, Cao, Hui, Han, Jung

“…Electrochemical etching having large selectivity based on the conductivity of n‐type GaN was investigated to demonstrate the feasibility of novel optical and…”
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Room temperature quantum key distribution characteristics of low-noise InGaAs/InP single-photon avalanche diode by Baek, Soo-Hyun, Yang, Seung-Chul, Park, Chan-Yong, Park, Chul-Woo, Cho, Seok-Beom, Ryu, Sang-Wan

“…InGaAs/InP single-photon avalanche diode (SPAD) with small active diameter and backside microlens was fabricated and its dark count and after-pulse noises were…”
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Universal and scalable route to fabricate GaN nanowire-based LED on amorphous substrate by MOCVD by Johar, Muhammad Ali, Song, Hyun-Gyu, Waseem, Aadil, Hassan, Mostafa Afifi, Bagal, Indrajit V., Cho, Yong-Hoon, Ryu, Sang-Wan

“…[Display omitted] •Universal approach of single crystalline GaN nanowire growth on amorphous substrates by MOCVD.•Reduced quantum confined Stark effect due to…”
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Facile morphology control of high aspect ratio patterned Si nanowires by metal-assisted chemical etching by Bagal, Indrajit V., Johar, Muhammad Ali, Hassan, Mostafa Afifi, Waseem, Aadil, Ryu, Sang-Wan

“…Facile and effective method to fabricate highly ordered silicon nanowires (SiNWs) using metal-assisted chemical etching (MACE) was demonstrated. MACE solutions…”
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Doping selective lateral electrochemical etching of GaN for chemical lift-off by Park, Joonmo, Song, Kwang Min, Jeon, Seong-Ran, Baek, Jong Hyeob, Ryu, Sang-Wan

“…An electrochemical etching based on oxalic acid was developed for use in the chemical lift-off of GaN epitaxial structures. It was shown that only the Si-doped…”
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Bifacial Modulation of Carrier Transport in BiVO4 Photoanode for Stable Photoelectrochemical Water Splitting via Interface Engineering by Mane, Pratik, Bagal, Indrajit V., Bae, Hyojung, Burungale, Vishal, Seong, Chaewon, Ryu, Sang‐Wan, Ha, Jun‐Seok

“…Monoclinic bismuth vanadate photoanodes promise high efficiency‐to‐cost ratios for photoelectrochemical (PEC) water splitting owing to their suitable band…”
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