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  1. No Access

    Article

    Efficient vertical charge transport in polycrystalline halide perovskites revealed by four-dimensional tracking of charge carriers

    Fast diffusion of charge carriers is crucial for efficient charge collection in perovskite solar cells. While lateral transient photoluminescence microscopies have been popularly used to characterize charge di...

    Changsoon Cho, Sascha Feldmann, Kyung Mun Yeom, Yeoun-Woo Jang… in Nature Materials (2022)

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    Article

    Photon recycling in halide perovskite solar cells for higher efficiencies

    The efficiency of halide perovskite solar cells has progressed rapidly through a series of major breakthroughs. Currently, a certified efficiency of 25.2% has been achieved for a solar cell using a polycrystal...

    Seungmin Lee, Kwang Choi, Chang Ha Min, Mun Young Woo, Jun Hong Noh in MRS Bulletin (2020)

  3. No Access

    Article

    Steps toward efficient inorganic–organic hybrid perovskite solar cells

    Crystalline silicon dominates the solar panel industry today but remains relatively expensive to manufacture. If devices could be fabricated from inexpensive materials by a simple solution process without the ...

    Jun Hong Noh, Sang Il Seok in MRS Bulletin (2015)

  4. No Access

    Article

    Effects of Surface Oxide on the Nitridation Behavior of Aluminum Particles

    A detailed transmission electron microscopy study coupled with electron energy loss spectroscopy was conducted on AlN formed by the direct nitridation of Al particles under nitrogen atmosphere. The nitridation...

    Sung-Hoon Kim, Jae-Hong Noh, Jae-Pyoung Ahn… in Metallurgical and Materials Transactions A (2015)

  5. No Access

    Article

    Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells

    Organolead trihalide perovskite materials have been successfully used as light absorbers in efficient photovoltaic cells. Two different cell structures, based on mesoscopic metal oxides and planar heterojuncti...

    Nam Joong Jeon, Jun Hong Noh, Young Chan Kim, Woon Seok Yang… in Nature Materials (2014)

  6. No Access

    Article

    Enhanced photovoltaic properties of overlayer-coated nanocrystalline TiO2 dye-sensitized solar cells (DSSCs)

    TiO2 dye-sensitized solar cells (DSSCs) coated with various oxide layers were fabricated via a screen printing method and the effects of the oxide layers on the photovoltaic properties were systematically investi...

    ** Young Kim, Sangwook Lee, Jun Hong Noh, Hyun Suk Jung… in Journal of Electroceramics (2009)

  7. No Access

    Article

    Electrical and optical properties of epitaxial and polycrystalline undoped and Al-doped ZnO thin films grown by pulsed laser deposition

    Undoped and Al-doped (1.6%) ZnO films were prepared on (0001) sapphire and fused silica substrates using a pulsed laser deposition technique. The ZnO films on sapphire substrates were epitaxially grown, while ...

    Jun Hong Noh, Jae-Sul An, ** Young Kim, Chin Moo Cho… in Journal of Electroceramics (2009)

  8. No Access

    Article

    Dielectric properties of nanocrystalline TiO2 prepared using spark plasma sintering

    Ultra fine rutile powders (below 50 nm) were prepared via the sol-gel process and bulk type TiO2 specimens were fabricated using spark plasma sintering (SPS). The TiO2 specimen sintered at a low temperature (720∘

    Jun Hong Noh, Kug Sun Hong, Hyun Suk Jung, Jung-Kun Lee in Journal of Electroceramics (2006)

  9. No Access

    Article

    Influence of stress on structural and dielectric anomaly of Bi2(Zn1/3Ta2/3)207 thin films

    Bi2(Zn1/3Ta2/3)2O7 (BZT) thin films were grown on the (111) oriented Pt/TiOx/SiO2/Si substrates using a pulsed laser deposition (PLD) technique. BZT thin films deposited at an oxygen partial pressure of 400 mTorr...

    Jun Hong Noh, Hee Bum Hong, Kug Sun Hong in MRS Online Proceedings Library (2006)