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Showing 1–11 of 11 results
Advanced filters: Author: Ji-Sang Park Clear advanced filters

  • 2D semiconductors hold promise for the fabrication of high-density flexible integrated circuits, but they often require high-temperature processing or transfer steps. Here, the authors report the low-temperature ( ≤ 150 °C) fabrication of wafer-scale 3Dintegrated flexible complementary circuits based on 2D semiconductor inks.

    • Taoyu Zou
    • Seongmin Heo
    • Yong-Young Noh
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-10

  • The most-efficient solar cells use Pb-based halide perovskites; however, their toxicity poses environmental and health risks. Here, the authors report an adsorbent that allows for sustainable Pb management in these devices.

    • So Yeon Park
    • Ji-Sang Park
    • Hyun Suk Jung
    Research
    Nature Sustainability
    Volume: 3, P: 1044-1051

  • Structural deformation can modify the optical properties of quantum dots. Here, the author report strain-graded CdSe-ZnSe quantum dots, allowing for spectrally stable and pure emission of photons at accelerated rates with near unity luminescence efficiency.

    • Dongju Jung
    • Jeong Woo Park
    • Wan Ki Bae
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-10

  • Achieving uniform Li plating in solid-state batteries is key for their practical application. Here, the authors integrate a silver-doped lithium argyrodite layer in initially anode-free all-solid-state batteries, promoting uniform lithium plating and cell operation under a low stack pressure of 2 MPa through silver exsolution.

    • Seung Ho Choi
    • Chang Hoon Baek
    • Jang Wook Choi
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-9

  • Colloidal semiconductor core-shell nanocrystals are sought after for photonic applications. Here, the authors report coherent heteroepitaxial growth of Ag(In,Ga)S2 core-shell nanocrystals with near-unity photoluminescence quantum yield across almost the full visible range.

    • Hak June Lee
    • Seongbin Im
    • Wan Ki Bae
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-11

  • The efficiency of Hematite (α-Fe2O3) photo-anodes is thought to be limited by ultrafast lattice distortions or polarons. Here, we use an optical-control method with photocurrent detection to track small polarons in real time and demonstrate that they impact photoelectrochemical cell activity

    • Ernest Pastor
    • Ji-Sang Park
    • Artem A. Bakulin
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • Control of electron and hole concentrations in semiconductors is a longstanding challenge. Now, by managing defect populations, a p–n homojunction solar cell has been fabricated, opening a new avenue for metal halide perovskite devices.

    • Ji-Sang Park
    • Aron Walsh
    News & Views
    Nature Energy
    Volume: 4, P: 95-96

  • Using hybrid density-functional calculations, we present period-doubling reconstructions of a 90° partial dislocation in GaAs, for which the periodicity of like-atom dimers along the dislocation line varies from one to two, to four dimers. The electronic properties of a dislocation change drastically with each period doubling, suggesting a new passivation strategy by biasing the competition between these phases through the tuning of the carrier density in the dislocation.

    • Ji-Sang Park
    • Bing Huang
    • William E McMahon
    ResearchOpen Access
    NPG Asia Materials
    Volume: 7, P: e216