Search Results - "Han, Il Ki"

Improving Performance and Stability of Flexible Planar-Heterojunction Perovskite Solar Cells Using Polymeric Hole-Transport Material by Jo, Jea Woong, Seo, Myung-Seok, Park, Minwoo, Kim, Jae-Yup, Park, Joon Suh, Han, Il Ki, Ahn, Hyungju, Jung, Jae Woong, Sohn, Byeong-Hyeok, Ko, Min Jae, Son, Hae Jung

“…For realizing flexible perovskite solar cells (PSCs), it is important to develop low‐temperature processable interlayer materials with excellent charge…”
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Optically Switchable Smart Windows with Integrated Photovoltaic Devices by Kwon, Hyun-Keun, Lee, Kyu-Tae, Hur, Kahyun, Moon, Sung Hwan, Quasim, Malik M., Wilkinson, Timothy D., Han, Ji-Young, Ko, Hyungduk, Han, Il-Ki, Park, Byoungnam, Min, Byoung Koun, Ju, Byeong-Kwon, Morris, Stephen M., Friend, Richard H., Ko, Doo-Hyun

“…An optically controlled energy‐harvesting smart window that incorporates a semitransparent solar cell with a photo­sensitive liquid crystal (LC) layer is…”
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Simultaneous Enhancement of Upconversion and Downshifting Luminescence via Plasmonic Structure by Lee, Kyu-Tae, Park, Jong-Hyun, Kwon, S. Joon, Kwon, Hyun-Keun, Kyhm, Jihoon, Kwak, Kyung-Won, Jang, Ho Seong, Kim, Su Yeon, Han, Joon Soo, Lee, Sung-Hwan, Shin, Dong-Hun, Ko, Hyungduk, Han, Il-Ki, Ju, Byeong-Kwon, Kwon, Soong-Hong, Ko, Doo-Hyun

“…We describe a metal nanodisk–insulator–metal (MIM) structure that enhances lanthanide-based upconversion (UC) and downshifting (DS) simultaneously. The…”
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Junction Temperature Measurement of InAs Quantum-Dot Laser Diodes by Utilizing Voltage-Temperature Method by Jeong, Jung Hwa, Kim, Kyoung Chan, Lee, Jung Il, Kim, Hyun Jae, Han, Il Ki

“…Junction temperature of InAs quantum-dot laser diodes (LDs) is measured by utilizing a forward voltage- temperature method. Although the forward voltage…”
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Plasmonic silicon nanowires for enhanced heat localization and interfacial solar steam generation by Soo Joo, Beom, Soo Kim, In, Ki Han, Il, Ko, Hyungduk, Gu Kang, Jin, Kang, Gumin

“…[Display omitted] •Propose of simple, affordable, and passive solar desalination system.•Use of hybrid metal-silcon nanowires for enhancing light absorption…”
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Microscopic understanding of exceptional orientation-dependent tensile and fracture responses of two-dimensional transition-metal carbides by In Jhon, Young, Ki Han, Il, Lee, Ju Han, Jhon, Young Min

“…[Display omitted] •MXene has isotropic stiffness with remarkable stretchability for all directions.•These properties render MXene 2D ceramics suitable to…”
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Alternative Patterning Process for Realization of Large-Area, Full-Color, Active Quantum Dot Display by Park, Joon-Suh, Kyhm, Jihoon, Kim, Hong Hee, Jeong, Shinyoung, Kang, JoonHyun, Lee, Song-ee, Lee, Kyu-Tae, Park, Kisun, Barange, Nilesh, Han, JiYeong, Song, Jin Dong, Choi, Won Kook, Han, Il Ki

“…Although various colloidal quantum dot (QD) coating and patterning techniques have been developed to meet the demands in optoelectronic applications over the…”
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High-Power Single-Mode 1.3-$\mu$m InGaAsP–InGaAsP Multiple-Quantum-Well Laser Diodes With Wide Apertures by Kyoung Chan Kim, Kyoung Chan Kim, Dong-Kie Jang, Dong-Kie Jang, Jung Il Lee, Jung Il Lee, Tae Geun Kim, Tae Geun Kim, Woo Won Lee, Woo Won Lee, Jeong Ho Kim, Jeong Ho Kim, Eun Jeong Yang, Eun Jeong Yang, Bon Jo Koo, Bon Jo Koo, Il Ki Han, Il Ki Han

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Long-term efficient organic photovoltaics based on quaternary bulk heterojunctions by Nam, Minwoo, Cha, Minjeong, Lee, Hyun Hwi, Hur, Kahyun, Lee, Kyu-Tae, Yoo, Jaehong, Han, Il Ki, Kwon, S. Joon, Ko, Doo-Hyun

“…A major impediment to the commercialization of organic photovoltaics (OPVs) is attaining long-term morphological stability of the bulk heterojunction (BHJ)…”
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Morphology control of perovskite in green antisolvent system for MAPbI3-based solar cells with over 20% efficiency by Kim, Soyoung, Jeong, Inyoung, Park, Cheolwoo, Kang, Gumin, Han, Il Ki, Kim, Wooyul, Park, Minwoo

“…Solvent engineering has been considered a reliable process for the fabrication of pinhole-free and highly crystalline perovskite thin films. Recently, green…”
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Highly Secure Plasmonic Encryption Keys Combined with Upconversion Luminescence Nanocrystals by Park, Kisun, Park, Minji, Jang, Ho Seong, Park, Ji Hun, Kim, Jaekyun, Cho, Younghak, Han, Il Ki, Byun, Dongjin, Ko, Hyungduk

“…This study proposes a novel and highly secure encryption technology based on plasmonic‐enhanced upconversion luminescence (UCL). The technology can be realized…”
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High-Power and Flexible Indoor Solar Cells via Controlled Growth of Perovskite Using a Greener Antisolvent by Kim, Soyoung, Oh, Heeyoon, Kang, Gumin, Han, Il Ki, Jeong, Inyoung, Park, Minwoo

“…Flexible perovskite solar cells attract significant attention because of their high accessibility in device fabrication, inexpensive fabrication process, and…”
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CH3NH3PbI3 crystal orientation and photovoltaic performance of planar heterojunction perovskite solar cells by Bae, Seunghwan, Park, Joon-Suh, Han, Il Ki, Shin, Tae Joo, Jo, Won Ho

“…The effect of crystal orientation of CH3NH3PbI3 on photovoltaic properties has rarely been studied due to the lack of method to fabricate perovskite films with…”
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Controlling of lattice strains for crack-free and strong ferroelectric barium titanate films by post-thermal treatment by Kim, Bogyu, Jeon, Young-Uk, Lee, Chulwoo, Kim, In Soo, Lee, Byeong-Hyeon, Kim, Young-Hwan, Kim, Young Duck, Han, Il Ki, Lee, Kwanil, Kim, Jongbum, Kang, JoonHyun

“…In this study, we experimentally demonstrate fabrication of ultra-smooth and crystalline barium titanate (BTO) films on magnesium oxide (MgO) substrates by…”
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Observation of a Biexciton Wigner Molecule by Fractional Optical Aharonov-Bohm Oscillations in a Single Quantum Ring by Kim, Hee Dae, Okuyama, Rin, Kyhm, Kwangseuk, Eto, Mikio, Taylor, Robert A, Nicolet, Aurelien L, Potemski, Marek, Nogues, Gilles, Dang, Le Si, Je, Ku-Chul, Kim, Jongsu, Kyhm, Ji-Hoon, Yoen, Kyu Hyoek, Lee, Eun Hye, Kim, Jun Young, Han, Il Ki, Choi, Wonjun, Song, Jindong

“…The Aharonov-Bohm effect in ring structures in the presence of electronic correlation and disorder is an open issue. We report novel oscillations of a strongly…”
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The response characteristics of a gas sensor based on poly-3-hexylithiophene thin-film transistors by Jeong, Jin Wook, Lee, Yang Doo, Kim, Young Min, Park, Young Wook, Choi, Jin Hwan, Park, Tae Hyun, Soo, Choi Dong, Won, Song Myung, Han, Il Ki, Ju, Byeong Kwon

“…This paper studies the response characteristics of a gas sensor for organic thin-film transistors (OTFTs), made from spin-coated poly-3-hexylthiophene (P3HT)…”
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Optimization of optoelectrical properties during synthesizing methylammonium lead iodide perovskites via a two-step dry process by Oanh Vu, Thi Kim, Kim, Young-Hwan, Ahn, Chang Wan, Kim, Min Ha, Han, Il Ki, Kim, Eun Kyu

“…We investigated the defect states and optoelectrical properties of methylammonium lead iodide (MAPbI3) perovskite films synthesized via a two-step dry process…”
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Fabrication of wide-bandgap transparent electrodes by using conductive filaments: Performance breakthrough in vertical-type GaN LED by Kim, Su Jin, Kim, Hee-Dong, Kim, Kyeong Heon, Shin, Hee Woong, Han, Il Ki, Kim, Tae Geun

“…For realizing next-generation solid-state lighting devices, performance breakthroughs must be accomplished for nitride-based light-emitting diodes (LEDs)…”
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Comparative Chemico-Physical Analyses of Strain-Free GaAs/Al0.3Ga0.7As Quantum Dots Grown by Droplet Epitaxy by Yeo, Inah, Kim, Doukyun, Lee, Kyu-Tae, Kim, Jong Su, Song, Jin Dong, Park, Chul-Hong, Han, Il Ki

“…We investigate the quantum confinement effects on excitons in several types of strain-free GaAs/Al 0.3 Ga 0.7 As droplet epitaxy (DE) quantum dots (QDs). By…”
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Study on InGaAsP-InGaAs MQW-LD with symmetric and asymmetric separate confinement heterostructure by Heo, D., Han, I.K., Lee, J.I., Jeong, J.

“…We studied symmetric and asymmetric InGaAsP-InGaAs 1.55-μm multiquantum-well (MQW) laser diodes (LDs) with highly p-doped layers in the two-step separate…”
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