Search Results - "Byeongdae, Choi"

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

Highly Contrast Image Correction for Dim Boundary Separation of Image Semantic Segmentation by Choi, Jinyeob, Choi, Byeongdae

“…The efficiency and accuracy of the image semantic segmentation algorithm represent a trade-off relationship, and the loss of accuracy tends to increase as the…”
Get full text

Machine Learning Feature Extraction Based on Binary Pixel Quantification Using Low-Resolution Images for Application of Unmanned Ground Vehicles in Apple Orchards by Lyu, Hong-Kun, Yun, Sanghun, Choi, Byeongdae

“…Deep learning and machine learning (ML) technologies have been implemented in various applications, and various agriculture technologies are being developed…”
Get full text

Effective control over near band-edge emission in ZnO/CuO multilayered films by Allabergenov, Bunyod, Shaislamov, Ulugbek, Shim, Hyunseok, Lee, Myeong-Jae, Matnazarov, Anvar, Choi, Byeongdae

“…We report on a study of the microstructural and photoluminescent properties of ZnO/CuO multilayered films. Multilayered ZnO/CuO thin films were deposited on…”
Get full text

Optical and photoelectric properties of Mn-doped ZnS thin film on a flexible indium-tin-oxide/polyethylene terephthalate substrate prepared by pulsed laser deposition by Choi, Byeongdae, Shim, Hyunseok, Allabergenov, Bunyod, Lee, Myoung-Jae

“…Optical and photoelectric properties of Mn-doped ZnS thin films on indium-tin-oxide (ITO)/polyethylene terephthalate (PET) substrates by pulsed laser…”
Get full text

Efficiency Improvement in a Powder‐Based Flexible Electroluminescence Device using Ag Nanothin‐Film‐Coated Transparent Electrodes by Yun, Sanghun, Lee, Soo-Keun, Allabergenov, Bunyod, Park, Jong Chun, Moon, SoYeon, Lee, Seong Eui, Choi, Byeongdae

“…Powder‐based electroluminescent (EL) devices have attracted attention as a technology for realizing flexible curved lighting or displays. However, low…”
Get full text

Microstructural analysis and optical characteristics of Cu-doped ZnO thin films prepared by DC magnetron sputtering by Allabergenov, Bunyod, Tursunkulov, Oybek, Abidov, Amir I., Choi, Byeongdae, Wook, Jeong Soon, Kim, Sungjin

“…The study of the process interactions near the surface and bulk area of functional metal oxide semiconductor materials plays an important role for nanodevice…”
Get full text

Orchard Free Space and Center Line Estimation Using Naive Bayesian Classifier for Unmanned Ground Self-Driving Vehicle by Lyu, Hong-Kun, Park, Chi-Ho, Han, Dong-Hee, Kwak, Seong, Choi, Byeongdae

“…In the case of autonomous orchard navigation, researchers have developed algorithms that utilize features, such as trunks, canopies, and sky in orchards, but…”
Get full text

Screen-Printed Cu Source/Drain Electrodes for a-InGaZnO Thin-Film Transistors by Kim, Jung-Hye, Kim, Joonwoo, Lee, Gwang Jun, Jeong, Jaewook, Choi, Byeongdae

“…We report screen-printed copper source/drain electrodes for a-InGaZnO (a-IGZO) thin-film transistors (TFTs). The best electrical characteristics of the a-IGZO…”
Get full text

Metal–Insulator Transition Detection of Vanadium Dioxide Thin Films by Visible Light Reflection by Allabergenov, Bunyod, Yun, Sanghun, Choi, Byeongdae

“…Vanadium dioxide (VO2)-based thin films have received considerable attention in recent years due to their superior performance in creating next-generation…”
Get full text

Mechanically driven light-generator with high durability by Moon Jeong, Soon, Song, Seongkyu, Lee, Soo-Keun, Choi, Byeongdae

“…Mechanically activated luminescence from solids (mechanoluminescence) is a classical optical phenomenon induced in a substance when stressed or cleaved…”
Get full text

Highly Reduced Phase Transition Hysteresis of Vanadium Dioxide Thin Films in Multilayer Structure with Titanium Dioxide by Allabergenov, Bunyod, Yun, Sanghun, Kutliev, Uchkun, Choi, Byeongdae

“…Herein, we present the electrical, structural, and optical characteristics of pristine VO2, VO2/TiO2, and TiO2/VO2/TiO2 thin films deposited on a conventional…”
Get full text

Brightness enhancement of a direct-current-driven electroluminescent device prepared with zinc-sulfide powder by Lee, Wonhee, Lyu, Hong-Kun, Cho, Hui-Sup, Lee, Seong Eui, Choi, Byeongdae

“…In this paper, we report an improved luminous efficiency of a direct-current-driven electroluminescent (EL) device using ZnS powder by controlling electron and…”
Get full text

Electrical characterization of a-InGaZnO thin-film transistors with Cu source/drain electrodes by Jeong, Jaewook, Jun Lee, Gwang, Kim, Joonwoo, Choi, Byeongdae

“…We analyzed the effects of Cu source/drain (S/D) electrodes on the performance of a-InGaZnO (a-IGZO) thin-film transistors (TFTs). Owing to the Cu migration,…”
Get full text

Enhancement of frequency modulation response time for polymer-dispersed liquid crystal by Shim, Hyunseok, Lyu, Hong-Kun, Allabergenov, Bunyod, Garbovskiy, Yuriy, Glushchenko, Anatoliy, Choi, Byeongdae

“…Through the ferroelectric nanoparticles of BaTiO 3 (BTO) doping, the response time for the frequency modulation of the polymer-dispersed liquid crystal (PDLC)…”
Get full text

Red photoluminescence and blue-shift caused by phase transformation in multilayer films of titanium dioxide and zinc sulfide by Choi, Byeongdae, Shim, Hyunseok, Allabergenov, Bunyod

“…The most versatile methods for altering the properties and behavior of materials involve a phase transformation in the solid state. In this article, we report…”
Get full text

Enhanced blue photoluminescence realized by copper diffusion doping of ZnO thin films by Allabergenov, Bunyod, Chung, Seok-Hwan, Jeong, Soon Moon, Kim, Sungjin, Choi, Byeongdae

“…ZnO thin films with blue photoluminescence (PL) have been fabricated through Cu diffusion doping. A CuO sub(x)-ZnO mixture, and Cu/ZnO double layer, films were…”
Get full text

Efficiency Improvement in a Powder‐Based Flexible Electroluminescence Device using Ag Nanothin‐Film‐Coated Transparent Electrodes by Yun, Sanghun, Lee, Soo-Keun, Allabergenov, Bunyod, Park, Jong Chun, Moon, SoYeon, Lee, Seong Eui, Choi, Byeongdae

“…Powder‐based electroluminescent (EL) technology is one of the promising candidate technologies for flexible lighting and digital signage implementation. In…”
Get full text

Control of Polymorphic Properties of Multivalent Vanadium Oxide Thin Films by Allabergenov, Bunyod, Yun, Sanghun, Cho, Hui-Sup, Lyu, Hong-Kun, Choi, Byeongdae

“…In this study, V x O y thin films were deposited on borosilicate glass substrates using direct current (DC) magnetron sputtering. The optoelectronic…”
Get full text

Electrically tunable birefringence of a polymer composite with long-range orientational ordering of liquid crystals by Choi, Byeongdae, Song, Seongkyu, Jeong, Soon Moon, Chung, Seok-Hwan, Glushchenko, Anatoliy

“…We report an optical film with electrically tunable birefringence in which the liquid crystals (LCs), mixed with the host polymer, form long-range ordering…”
Get full text