Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Joong Il Jake, Choi"'
Publikováno v:
Current Applied Physics. 50:74-80
Autor:
Jeong Young Park, Jeongjin Kim, Ki-Jeong Kim, Bongjin Simon Mun, Joong Il Jake Choi, Jae-Eun Kim
Publikováno v:
The Journal of Physical Chemistry C. 125:6909-6915
The relationship between nanoscale friction and the surrounding environment has long been a critical issue in the field of nanotribology. Here, we utilized ambient pressure–atomic force microscopy ...
Publikováno v:
ACS Nano. 14:16392-16413
Modern surface science faces two major challenges, a materials gap and a pressure gap. While studies on single crystal surface in ultrahigh vacuum have uncovered the atomic and electronic structures of the surface, the materials and environmental con
Autor:
Joong Il Jake Choi, Zafer Hawash, Luis K. Ono, Yabing Qi, Hyunhwa Lee, Yong-Hoon Kim, Jeong Young Park, Muhammad Ejaz Khan
Publikováno v:
The Journal of Physical Chemistry C. 124:1484-1491
Atomistic characterization of surface termination and the corresponding mechanical properties of single-crystal methylammonium lead tribromide (MAPbBr3) are performed using combined atomic force microscopy (AFM) measurements and density functional th
Autor:
Dong Woo Lee, Dae Sol Kong, Jong Hun Kim, Sang Hyeok Park, Ying Chieh Hu, Young Joon Ko, Chan Bae Jeong, Seoku Lee, Joong Il Jake Choi, Gwan-Hyoung Lee, Minbaek Lee, Jeong Jae Wie, Ki Soo Chang, Jeong Young Park, Jong Hoon Jung
Publikováno v:
Nano Energy. 103:107813
Publikováno v:
Surface Science. 679:180-187
We have studied zirconia films on a Rh(111) substrate with thicknesses in the range of 2–10 monolayers (ML) using scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED). Zirconia was deposited using a UHV-compatible sputter
Autor:
Hyunhwa Lee, Jeong Young Park, Muhammad Ejaz Khan, Yong-Hoon Kim, Ki-Jeong Kim, Yabing Qi, Luis K. Ono, Joong Il Jake Choi, Zafer Hawash
Publikováno v:
Journal of Materials Chemistry A. 7:20760-20766
While organic–inorganic hybrid perovskite solar cells are emerging as promising candidates for next-generation solar cells with fascinating power conversion efficiency, the instability of perovskites remains a significant bottleneck for their comme
Publikováno v:
Nanoscale. 11(13)
We report improved the triboelectric properties of ultraviolet (UV)-irradiated ultrananocrystalline diamond (UNCD) films that were measured using atomic force microscopy (AFM). Fabricated using the chemical vapor deposition (CVD) method, UNCD is an a
Ambient-pressure atomic force microscope with variable pressure from ultra-high vacuum up to one bar
Publikováno v:
Review of Scientific Instruments. 89:103701
We present the design and performance of an ambient-pressure atomic force microscope (AP-AFM) that allows AFM measurements using the laser deflection technique in a highly controlled environment from ultra-high vacuum (UHV) up to 1 bar with various g
Autor:
Joong Il Jake, Choi, Wernfried, Mayr-Schmölzer, Ilaria, Valenti, Paola, Luches, Florian, Mittendorfer, Josef, Redinger, Ulrike, Diebold, Michael, Schmid
Publikováno v:
The Journal of Physical Chemistry. C, Nanomaterials and Interfaces
Nucleation and growth of transition metals on zirconia has been studied by scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. Since STM requires electrical conductivity, ultrathin ZrO2 films grown by oxidation of Pt