Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Young-Ahn Lee"'
Publikováno v:
Applied Surface Science. 481:1011-1017
We report the dramatic manipulation of an oxide interface in Al2O3/WO3 from insulating to metallic state by creating a two-dimensional conducting path. The WO3 thin film is deposited on the SiO2 grown Si substrate using radio frequency magnetron sput
Publikováno v:
Applied Surface Science. 440:1244-1251
Polarons have been suggested to explain the mechanism of the coloration of WO3 induced by UV light. However, despite the many experimental results that support small polarons as a key mechanism, direct observation of the carrier dynamics of polarons
Publikováno v:
Surface Science. 665:43-50
CO oxidation over Pd/WO 3 films prepared on a glass substrate has been examined at the substrate temperature of 150 – 250 °C and pressures less than 1 Torr with a stoichiometric mixture of CO and O 2 . Under the given reaction condition, the chemi
Publikováno v:
Sensors and Actuators B: Chemical. 238:111-119
H2 is a fuel with advantages that include being recyclable, abundant, and environmentally friendly. It has been intensively studied as an attractive renewable energy carrier. However, H2 detection is a necessary safety concern, because the fuel is ex
Autor:
Seung-Ik Han, Hyungtak Seo, Hyun You Kim, Young-Ahn Lee, Le Thai Duy, Ranveer Singh, Hyesung An, Jucheol Park
Publikováno v:
Sensors and Actuators B: Chemical. 330:129378
Nanostructuring of catalysts, such as Pd, is of interest for exploiting their unique surface properties cost-effectively for various applications, especially high-dose hydrogen sensing and storage. Although various Pd modifications have been reported
Publikováno v:
RSC Adv.. 5:9028-9034
Hydrogen gas sensing is a crucial issue in various hydrogen related areas due to its explosive nature. Here, we report an efficient gasochromic and optical hydrogen sensor based on an ultrathin layer of copper sulfide (CuS) incorporated with palladiu
Autor:
Hyungtak Seo, Jucheol Park, Duck-Kyun Choi, Ki-Joon Jeon, Myeong-Ho Kim, Young-Ahn Lee, Jeong Won Kim, Seungbae Ahn, Jinseo Kim
Publikováno v:
ACS nano. 9(10)
The photochemical tunability of the charge-transport mechanism in metal-oxide semiconductors is of great interest since it may offer a facile but effective semiconductor-to-metal transition, which results from photochemically modified electronic stru
Publikováno v:
Scientific Reports
SCIENTIFIC REPORTS(4)
SCIENTIFIC REPORTS(4)
The extended application of graphene-based electronic devices requires a bandgap opening in order to realize the targeted device functionality. Since the bandgap tuning of pristine graphene is limited to 360 meV, the chemical modification of graphene
Publikováno v:
Scientific Reports; 7/11/2014, p1-7, 7p