Search Results - "Cho, Doo Hee"

Improvement in the photon-induced bias stability of Al–Sn–Zn–In–O thin film transistors by adopting AlOx passivation layer by Yang, Shinhyuk, Cho, Doo-Hee, Ryu, Min Ki, Park, Sang-Hee Ko, Hwang, Chi-Sun, Jang, Jin, Jeong, Jae Kyeong

“…This study examined the impact of the passivation layer on the light-enhanced bias instability of Al–Sn–Zn–In–O (AT–ZIO) thin film transistors. The suitably…”
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The formation of an optically functional nano-lens array by substrate surface treatment by Park, Young-Sam, Cho, Doo-Hee

“…Recently, a nano-lens array (NLA) technology has been developed to greatly enhance light extraction efficiencies and color stabilities of red, green and blue…”
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Random nano-structures as light extraction functionals for organic light-emitting diode applications by Shin, Jin-Wook, Cho, Doo-Hee, Moon, Jaehyun, Joo, Chul Woong, Park, Seung Koo, Lee, Jonghee, Han, Jun-Han, Cho, Nam Sung, Hwang, Joohyun, Huh, Jin Woo, Chu, Hye Yong, Lee, Jeong-Ik

“…•Using dewetted Ag droplets, we have fabricated a random scattering layer (RSL) and applied it as an OLED light extraction structure.•OLEDs with the RSL showed…”
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A Light Scattering Layer for Internal Light Extraction of Organic Light-Emitting Diodes Based on Silver Nanowires by Lee, Keunsoo, Shin, Jin-Wook, Park, Jun-Hwan, Lee, Jonghee, Joo, Chul Woong, Lee, Jeong-Ik, Cho, Doo-Hee, Lim, Jong Tae, Oh, Min-Cheol, Ju, Byeong-Kwon, Moon, Jaehyun

“…We propose and fabricate a random light scattering layer for light extraction in organic light-emitting diodes (OLEDs) with silver nanodots, which were…”
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Organic wrinkles for energy efficient organic light emitting diodes by Moon, Jaehyun, Kim, Eunhye, Park, Seung Koo, Lee, Keunsoo, Shin, Jin-Wook, Cho, Doo-Hee, Lee, Jonghee, Joo, Chul Woong, Cho, Nam Sung, Han, Jun-Han, Yu, Byoung-Gon, Yoo, Seunghyup, Lee, Jeong-Ik

“…[Display omitted] •We have synthesized a new type of liquid prepolymer, which spontaneously forms wrinkles upon UV light exposure.•We have demonstrated our…”
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Transparent Al-Zn-Sn-O thin film transistors prepared at low temperature by Cho, Doo-Hee, Yang, Shinhyuk, Byun, Chunwon, Shin, Jaeheon, Ryu, Min Ki, Park, Sang-Hee Ko, Hwang, Chi-Sun, Chung, Sung Mook, Cheong, Woo-Seok, Yoon, Sung Min, Chu, Hye-Yong

“…We have fabricated transparent bottom gate thin film transistors (TFTs) using Al-doped zinc tin oxide (AZTO) as active layers. The AZTO active layer was…”
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Proton conducting, composite sulfonated polymer membrane for medium temperature and low relative humidity fuel cells by Shin, Dong Won, Kang, Na Rae, Lee, Kang Hyuck, Cho, Doo Hee, Kim, Ji Hoon, Lee, Won Hyo, Lee, Young Moo

“…Inorganic-organic composite membranes are fabricated using zirconium acetylacetonate nanoparticles and biphenol-based sulfonated poly(arylene ether sulfone) as…”
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Fab-compatible nano-lens array integration for optically efficient flexible top-emitting organic light-emitting diodes by Kwon, Jungyun, Kim, Jehan, Park, Young-Sam, Cho, Doo-Hee, Kwon, O Eun, Lee, Kang Me, Lee, Hee Chul, Cho, Nam Sung, Yu, Byounggon

“…This work extends the kinds of organic materials that can form nano-lens arrays (NLAs). We have previously addressed fabrication of a…”
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Swelling agent adopted decal transfer method for membrane electrode assembly fabrication by Cho, Doo Hee, Lee, So Young, Shin, Dong Won, Hwang, Doo Sung, Lee, Young Moo

“…The decal transfer method is regarded as an effective membrane electrode assembly (MEA) fabrication method for industrial processes due to the improved…”
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Effect of crosslinking on the durability and electrochemical performance of sulfonated aromatic polymer membranes at elevated temperatures by Shin, Dong Won, Lee, So Young, Kang, Na Rae, Lee, Kang Hyuck, Cho, Doo Hee, Lee, Moon Joo, Lee, Young Moo, Suh, Kyung Do

“…End-group crosslinked sulfonated poly(arylene sulfide nitrile) (XESPSN) membranes are prepared to investigate the effect of crosslinking on the properties of…”
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Impact of device configuration on the temperature instability of Al-Zn-Sn-O thin film transistors by Jeong, Jae Kyeong, Yang, Shinhyuk, Cho, Doo-Hee, Park, Sang-Hee Ko, Hwang, Chi-Sun, Cho, Kyoung Ik

“…We compared the effect of the temperature on the device stability of Al-Zn-Sn-O (AZTO) thin film transistors (TFTs) with top gate and bottom gate…”
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Luminescence enhancement of OLED lighting panels using a microlens array film by Han, Jun-Han, Moon, Jaehyun, Cho, Doo-Hee, Shin, Jin-Wook, Chu, Hye Yong, Lee, Jeong-Ik, Cho, Nam Sung, Lee, Jonghee

“…The enhancement of the luminance of organic light-emitting diode (OLED) panels with various areas (2.25-6084 mm 2 ) using a microlens array (MLA) film was…”
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Outcoupling Efficiency Analysis of OLEDs Fabricated on a Wrinkled Substrate by Park, Jun-Hwan, Chu, Woo-Sung, Oh, Min-Cheol, Lee, Keunsoo, Moon, Jaehyun, Park, Seung Koo, Cho, Hyunsu, Cho, Doo-Hee

“…Enhancement of outcoupling efficiency of OLEDs by using a buckled or wrinkled substrate has been recently reported by several groups, while an optical analysis…”
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The Optical Effects of Capping Layers on the Performance of Transparent Organic Light-Emitting Diodes by Jin Woo Huh, Jaehyun Moon, Joo Won Lee, Doo-Hee Cho, Jin-Wook Shin, Jun-Han Han, Joohyun Hwang, Chul Woong Joo, Jeong-Ik Lee, Hye Yong Chu

“…In transparent organic light-emitting diodes (TOLEDs), the asymmetry in the optical paths causes difference between the bottom and top emitting lights, both in…”
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Improved Device Performances in Phosphorescent Organic Light-Emitting Diodes by Microcavity Effects by Joo, Chul Woong, Moon, Jaehyun, Hwang, Joohyun, Han, Jun-Han, Shin, Jin-Wook, Cho, Doo-Hee, Huh, Jin Woo, Chu, Hye Yong, Lee, Jeong-Ik

“…In order to improve the external quantum efficiency of organic light-emitting diodes (OLEDs), we purpose an anode which has a structure of indium tin oxide…”
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Luminance enhancement of top-emitting blue organic light emitting diodes encapsulated with silicon nitride thin films by a double-layer nano-structure by Cho, Doo-Hee, Park, Young-Sam, Choi, Sukyung, Cho, Hyunsu, Kwon, Byoung-Hwa, Shin, Jin-Wook, Cho, Nam Sung

“…Even though it is in high demand to introduce a nano-structure (NS) light extraction technology on a silicon nitride to be used as a thin film encapsulation…”
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Long-lived electrochromic device with multilevel bistability based on portable film-type polymer electrolytes by Ah, Chil Seong, Song, Juhee, Kim, Tae-Youb, Han, Jisu, Sung, Chihun, Cho, Doo-Hee, Cheon, Sanghoon, Cho, Seong M., Ryu, Hojun

“…Long-lived electrochromic devices (ECDs) with multilevel bistability based on a portable film-type polymer electrolyte (PFPE) were fabricated and their optical…”
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Nondestructive Readout Operation of Oxide-Thin-Film-Transistor-Based 2T-Type Nonvolatile Memory Cell by YOON, Sung-Min, BYUN, Chun-Won, YANG, Shinhyuk, KO PARK, Sang-Hee, CHO, Doo-Hee, JUNG, Soon-Won, KANG, Seung-Youl, HWANG, Chi-Sun

“…A two-transistor-type nonvolatile memory cell composed of one-access and one-memory thin-film transistors (TFTs) was demonstrated. ZnO and poly(vinylidene…”
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Flexible integrated OLED substrates prepared by printing and plating process by Cho, Doo-Hee, Kwon, O Eun, Park, Young-Sam, Yu, Byoung Gon, Lee, Jonghee, Moon, Jaehyun, Cho, Hyunsu, Lee, Hyunkoo, Cho, Nam Sung

“…We developed a cost-effective process to fabricate a flexible integrated organic light-emitting diode (OLED) substrate using a screen printing, an electroless…”
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Transparent Oxide Thin-Film Transistors Composed of Al and Sn-doped Zinc Indium Oxide by CHO, Doo-Hee, YANG, Shinhyuk, BYUN, Chunwon, MIN KI RYU, KO PARK, Sang-Hee, HWANG, Chi-Sun, SUNG MIN YOON, CHU, Hye-Yong

“…We have fabricated the transparent bottom gate thin-film transistors (TFTs) using Al and Sn-doped zinc indium oxide (AT-ZIO) as an active layer. The AT-ZIO…”
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