Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Youngwoon Yoon"'
Autor:
Bongsoo Kim, Youngwoon Yoon, Nara Shin, Hui Jun Yun, Hae Jung Son, Yun-Hi Kim, Sang Yong Ju, Soon Ki Kwon
Publikováno v:
Macromolecules. 48:3890-3899
It is important to develop new donor (D)–acceptor (A) type low band gap polymers for highly stable polymer solar cells (PSCs). Here, we describe the synthesis and photovoltaic properties of two D–A type low band gap polymers. The polymers consist
Autor:
Yong-Young Noh, Hae Jung Son, Bongsoo Kim, Youngwoon Yoon, Won-Tae Park, Dongkyun Seo, Kyungwon Kwak, Benjamin Nketia-Yawson, Hyo Sang Lee
Publikováno v:
Advanced Materials. 27:3045-3052
High-mobility and low-voltage-operated organic field-effect transistors (OFETs) are demonstrated by the design of a new fluorinated benzothiadiazole-based conjugated polymer with fluorinated high-k polymer dielectrics. A record-breaking high hole mob
Autor:
Hyunjung Kim, Doh Kwon Lee, Minwoo Jung, Wonsuk Cha, Jin Young Kim, Min Jae Ko, Dongkyun Seo, Kyungwon Kwak, Ajeong Kim, Bongsoo Kim, Youngwoon Yoon, Hae Jung Son
Publikováno v:
Dyes and Pigments. 115:23-34
The fused dithieno[2,3- d :2′,3′- d ′]benzo[1,2- b :4,5- b ′]dithiophene (DTBDT) structure was coupled with diketopyrrolopyrrole (DPP) moieties to generate highly planar bis(2,5-bis(2-ethylhexyl)-3,6-di(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-
Autor:
Seon Kyoung Son, Bongsoo Kim, Youngwoon Yoon, Hae Jung Son, Hyunjung Kim, Min Jae Ko, Youngjong Kang, Boseok Kang, Jeong Ho Cho, Kilwon Cho, Woonggi Kang, Jong Yong Choi, Wonsuk Cha
Publikováno v:
ACS Applied Materials & Interfaces. 7:6002-6012
Bottom-contact bottom-gate organic field-effect transistors (OFETs) are fabricated using a low band gap pDTTDPP-DT polymer as a channel material and single-layer graphene (SLG) or Au source/drain electrodes. The SLG-based ambipolar OFETs significantl
Autor:
Han Sup Lee, Bongsoo Kim, Youngwoon Yoon, Chi Won Ahn, Young Min Song, Jaehoon Jung, Kiwoon Choi, Il-Suk Kang, Min Jae Ko, Gil Ju Lee
Publikováno v:
Advanced Optical Materials. 5
Autor:
Doh-Kwon Lee, Do-Hoon Hwang, Hae Jung Son, Min Jae Ko, BongSoo Kim, Nam-Gyu Park, Tae In Ryu, Honggon Kim, Youngwoon Yoon, Ji-Hoon Kim, Jin Young Kim
Publikováno v:
Macromolecules. 47:6270-6280
We synthesized a series of push–pull-type copolymers by copolymerizing an electron-deficient diketopyrrolopyrrole with three electron-donating benzodithiophene (BDT) moieties. PDPPDTT, which incorporated a dithienothiophene (DTT), showed a higher p
Autor:
Bongsoo Kim, Youngwoon Yoon, Hyunjung Kim, Hae Jung Son, Minwoo Jung, Wonsuk Cha, Doh Kwon Lee, Woonggi Kang, Jeong Ho Cho, Sukjae Jang
Publikováno v:
ACS Applied Materials & Interfaces. 6:6589-6597
We characterized the electrical properties of a field-effect transistor (FET) and a nonvolatile memory device based on a solution-processable low bandgap small molecule, Si1TDPP-EE-C6. The small molecule consisted of electron-rich thiophene-dithienos
Autor:
Hae Jung Son, Youngwoon Yoon, Honggon Kim, Doh-Kwon Lee, Soon-Ki Kwon, So Min Park, Chan Woo Jeon, Bong-Soo Kim, Min Jae Ko, Jin Young Kim, Yun-Hi Kim
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 52:796-803
Low bandgap polymers with dithienylquinoxaline moieties based on 6H-phenanthro[1,10,9,8-cdefg]carbazole were synthesized via the Suzuki coupling reaction. Alkoxy groups were substituted at two different positions on the phenyl groups of the quinoxali
Autor:
Il Kang, Bongsoo Kim, Youngwoon Yoon, Nara Shin, Yun-Hi Kim, Min Jae Ko, Hae Jung Son, Youn Su Kim, Seul Ong Kim, Kyungkon Kim, Honggon Kim, Hui Jun Yun, Soon Ki Kwon
Publikováno v:
Macromolecules. 46:3861-3869
We report the synthesis, characterization, and solar cell properties of new donor–acceptor-type low band gap polymers (POBDTPD and PEBDTPD) that incorporate dialkoxybenzodithiophene (BDT) as the donor and N-octyl-2,7-dithia-5-azacyclopenta[a]pental
Autor:
Jerome Carnis, Hanju Lee, Youngwoon Yoon, Harutyun Melikyan, Kiejin Lee, Barry Friedman, Arsen Babajanyan
Publikováno v:
Thin Solid Films. 534:503-507
The conducting channel in a pentacene organic thin-film transistor (OTFT) under light illumination was visualized by using a near-field scanning microwave microscope (NSMM). The increase in conductivity due to the photogeneration effect was caused by