Haejun Yu
Seoul National University
19 Papers
52 Citations
Haejun Yu is an academic researcher from Seoul National University. The author has contributed to research in topics: Perovskite (structure) & Perovskite solar cell. The author has an hindex of 15, co-authored 19 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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Paintable Carbon-Based Perovskite Solar Cells with Engineered Perovskite/Carbon Interface Using Carbon Nanotubes Dripping Method.
TL;DR: An attempt to enhance the performance of the paintable carbon-based PSCs is made using a modified solvent dripping method that involves dripping of the carbon nanotubes (CNTs), which is dispersed in chlorobenzene solution, results in increased open circuit voltage and fill factor, providing better contact at the perovskite/carbon interfaces.
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A highly stable and efficient carbon electrode-based perovskite solar cell achieved via interfacial growth of 2D PEA2PbI4 perovskite
TL;DR: In this paper, an innovative method to post-treat a carbon electrode with phenylethylammonium iodide (PEAI) for the growth of a two-dimensional (2D) perovskite at the interface between the perovsite and carbon layers was presented.
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Superfast Room-Temperature Activation of SnO2 Thin Films via Atmospheric Plasma Oxidation and their Application in Planar Perovskite Photovoltaics.
Haejun Yu,Hye-In Yeom,Jong Woo Lee,Kisu Lee,Doyk Hwang,Juyoung Yun,Jaehoon Ryu,Jungsup Lee,Sohyeon Bae,Seong Keun Kim,Jyongsik Jang +10 more
TL;DR: These findings motivate the use of a plasma strategy to fabricate various metal oxide TFs using the sol-gel route, achieving a superior PCE of 19.56% in P-SnO2 -based PSCs.
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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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