Jongmin Roh
Seoul National University
11 Papers
25 Citations
Jongmin Roh is an academic researcher from Seoul National University. The author has contributed to research in topics: Nanoparticle & Aqueous solution. The author has an hindex of 9, co-authored 11 publications.
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Papers
Hexagonal β-NaYF4:Yb3+, Er3+ Nanoprism-Incorporated Upconverting Layer in Perovskite Solar Cells for Near-Infrared Sunlight Harvesting
TL;DR: This result suggests that the hexagonal β-NaYF4:Yb(3+), Er(3+) nanoprisms expand the absorption range of the PSC via upconversion photoluminescence, leading to an enhancement of the photocurrent.
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Dual-Functional CeO2:Eu3+ Nanocrystals for Performance-Enhanced Dye-Sensitized Solar Cells
TL;DR: The size of the CeO2:Eu3+ nanocrystals (300-400 nm), as well as their mirrorlike facets, significantly improved the diffuse reflectance of visible light and exhibited a power conversion efficiency increase of 8.36%, an increase of 14%, compared with conventional TiO2 nanoparticle-based DSSCs.
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Size-controlled SiO2 nanoparticles as scaffold layers in thin-film perovskite solar cells
TL;DR: In this article, the authors investigated the effects of scaffold layers comprised of SiO2 NPs that were 15, 30, 50, 70, and 100 nm in diameter on the properties of perovskite films.
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Large Grain-Based Hole-Blocking Layer-Free Planar-Type Perovskite Solar Cell with Best Efficiency of 18.20%
Haejun Yu,Jaehoon Ryu,Jong Woo Lee,Jongmin Roh,Kisu Lee,Juyoung Yun,Jungsup Lee,Yun Ki Kim,Doyk Hwang,Jooyoun Kang,Seong Keun Kim,Jyongsik Jang +11 more
TL;DR: This work successfully fabricated highly efficient hole-blocking layer (HBL)-free PSCs through vigorously interrupting penetration of hole-transport material (HTM) into fluorine-doped tin oxide by a large grain based-CH3NH3PbI3 (MAPbI 3) film, thereby obtaining a PCE of 18.20%.
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Low temperature aqueous phase synthesis of silver/silver chloride plasmonic nanoparticles as visible light photocatalysts
TL;DR: A one pot and environmentally benign synthetic route for plasmonic photocatalytic Ag@AgCl nanoparticles in a PVA-dissolved aqueous solution system and a plausible growth mechanism of metallic silver during the reduction process is proposed.
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