Hanyang University · Engineering
Professor Jinsub Park's research lab specializes in the design, synthesis, and application of advanced oxide-based nanomaterials, particularly zinc- and tin-oxide systems, for optoelectronic and photonic devices. The lab focuses on developing high-performance UV photodetectors, light-emitting diodes (LEDs), and nonlinear optical structures through innovative nanostructuring, phase control, and core-shell heterostructure engineering. Key research directions include enhancing device performance via surface polarity engineering, defect control, and light management using microsphere monolayers and grating structures.
Figures are computed from collected data and may differ slightly.
Metal–semiconductor–metal UV photodetectors consisting of transferable zinc-tin-oxide (ZTO) microsphere (MS) monolayers with different phases and sizes are reported. From the experimental results, the crystallized Zn2SnO4 (c-ZTO)-MS-monolayer-based photodetectors present higher performance than amorphous ZnSnO3 (a-ZTO)-based photodetectors. The external quantum efficiencies of the a-ZTO- and c-ZTO-MS-based UV photodetectors are 16.7% (at 320 nm) and 580.9% (at 310 nm), respectively. Moreover, th
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