Zobrazeno 1 - 10
of 319
pro vyhledávání: '"Won Kook, Choi"'
Publikováno v:
Electronic Materials, Vol 4, Iss 4, Pp 139-147 (2023)
In this work, we report the first attempt to investigate the dependence of thioacetamide (TAA) on the size of ZnO nanoparticles (NPs) in forming ZnS nanostructures from ZnO. Size-controlled B(blue)_, G(green)_, and Y(yellow)_ZnO quantum dots (QDs) an
Externí odkaz:
https://doaj.org/article/73c1d65963264265b6298e5910cc07bc
Autor:
Hyunjin Cho, Ji-Yeon Kim, Dong Su Shin, Joo Song Lee, Jaeho Shim, In-Ho Lee, Won Kook Choi, Namhee Kwon, Soohyung Park, Mehmet Suha Yazici, Young Jae Park, Ju Hee You, Seok-Ho Seo, Donghee Park, Dong Ick Son
Publikováno v:
Advanced Sensor and Energy Materials, Vol 3, Iss 1, Pp 100088- (2024)
A solar-driven photoelectrochemical (PEC) cell is emerging as one of the promising clean hydrogen generation systems. Engineering of semiconductor heterojunctions and surface morphologies of photoelectrodes in a PEC cell has been a primitive approach
Externí odkaz:
https://doaj.org/article/b8995042624c4b1797322e1bbca6c7e2
Autor:
Su Yeon Kwon, Byungsoo Kang, Jong Hyeon Won, Chae Young Lee, Kahee Hwang, Hong Hee Kim, Donghee Park, Won Kook Choi, In Soo Kim, Gee Yeong Kim, Yoon Hee Jang, Phillip Lee, Sang Hyuk Im, Taehee Kim
Publikováno v:
Advanced Materials Interfaces, Vol 10, Iss 10, Pp n/a-n/a (2023)
Abstract Air fabrication of efficient and stable perovskite solar cells with substantial reproducibility is of importance for commercialization of perovskite solar cells. There has been little consensus on which halide is the best selection for thin
Externí odkaz:
https://doaj.org/article/c69c1ba347e249c78dbbea299b78c21c
Publikováno v:
Advanced Photonics Research, Vol 3, Iss 4, Pp n/a-n/a (2022)
Blue‐light emissive type II ZnO@5‐amino‐2‐naphthalene sulfonic acid (ANSA) core–shell quantum dots (QDs) is first fabricated. Green luminescence (GL) of 2.25 eV of ZnO QDs disappears at the threshold excitation wavelengths (λex) > 400 nm d
Externí odkaz:
https://doaj.org/article/66d9563ff98442d78babcb1086891d05
Publikováno v:
Advanced Energy & Sustainability Research, Vol 2, Iss 12, Pp n/a-n/a (2021)
A structure of flexible glass/flexible transparent conducting electrode (TCE) comparable with the conventional glass/indium tin oxide (ITO) substrate is proposed by combining an Ag NW + PEDOT:PSS hybrid TCE (h‐TCE) with triple‐layer a‐SiNx:H/n
Externí odkaz:
https://doaj.org/article/978eef4030ac46339991d5054a6e29a1
Autor:
Da Young Lee, Hong Hee Kim, Ji-Hyun Noh, Keun-Yong Lim, Donghee Park, In-Hwan Lee, Won Kook Choi
Publikováno v:
Nanomaterials, Vol 12, Iss 12, p 2038 (2022)
The widely used ZnO quantum dots (QDs) as an electron transport layer (ETL) in quantum dot light-emitting diodes (QLEDs) have one drawback. That the balancing of electrons and holes has not been effectively exploited due to the low hole blocking pote
Externí odkaz:
https://doaj.org/article/e7df98fb63d0469baa393f7b438b0622
Enhancing Performance of 1-aminopyrene Light-Emitting Diodes via Hybridization with ZnO Quantum Dots
Publikováno v:
JOURNAL OF SENSOR SCIENCE AND TECHNOLOGY. 31:238-243
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd62c0217bb62fee9c75390742d702c1
https://doi.org/10.46670/jsst.2022.31.4.238
https://doi.org/10.46670/jsst.2022.31.4.238
Publikováno v:
RSC Advances. 12:4113-4119
The extrapolated T50 at 100 cd m−2 for the a-SiNx:H/SiOxNy/hybrid SiOx (ASH)-encapsulated QD-LEDs is estimated to be 9804 h, which is compatible to that of 12112 h for glass lid encapsulated QD-LEDs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0743123d8d81fd92631074834772a72
https://doi.org/10.1039/d1ra07712k
https://doi.org/10.1039/d1ra07712k
Publikováno v:
AIP Advances, Vol 8, Iss 8, Pp 085113-085113-7 (2018)
Highly dispersible nanospring single-walled carbon nanotubes (NS-CNTs) were incorporated in a P(VDF-TrFE) copolymer with up to 15 wt.% of nanofiller. The relative dielectric constant (K) of the polymer nanocomposite at 1 kHz was greatly enhanced from
Externí odkaz:
https://doaj.org/article/f139fd78d776421d9138249968b2b51e
Autor:
Sangwon Eom, Won Kook Choi, Young Ran Park, Youngjong Kang, Hyosung Choi, Hong Hee Kim, Bo Ram Lee
Publikováno v:
Journal of Materials Chemistry C. 9:3608-3619
Efficiency roll-off is a significant issue in blue light-emitting diodes (LEDs), but its origin still remains controversial. We report CsPbBr3−xClx/PbBry (or PbCly) (core/shell) quantum dot LEDs exhibiting the emission peak spanning from λpeak = 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f04edde34cb769c5b18bf111def6d6a4
https://doi.org/10.1039/d0tc05514j
https://doi.org/10.1039/d0tc05514j