J
Ji-Wook Jang
Researcher at Ulsan National Institute of Science and Technology
Publications - 87
Citations - 7902
Ji-Wook Jang is an academic researcher from Ulsan National Institute of Science and Technology. The author has contributed to research in topics: Water splitting & Photocurrent. The author has an hindex of 43, co-authored 80 publications receiving 6235 citations. Previous affiliations of Ji-Wook Jang include Helmholtz-Zentrum Berlin & Pohang University of Science and Technology.
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Journal ArticleDOI
Toward practical solar hydrogen production - an artificial photosynthetic leaf-to-farm challenge.
TL;DR: A critical assessment of the key components needed to scale up PEC water splitting systems such as materials efficiency, cost, elemental abundancy, stability, fuel separation, device operability, cell architecture, and techno-economic aspects of the systems are placed on.
Journal ArticleDOI
Single-crystalline, wormlike hematite photoanodes for efficient solar water splitting
Jae Young Kim,Ganesan Magesh,Duck Hyun Youn,Ji-Wook Jang,Jun Kubota,Kazunari Domen,Jae Sung Lee +6 more
TL;DR: In this article, a hematite photoanode showing a stable, record-breaking performance of 4.32 µmW/cm2 photoelectrochemical water oxidation current at 1.23 µmV vs. RHE under simulated 1-sun irradiation was reported.
Single-crystalline, wormlike hematite photoanodes for efficient solar water
splitting Young Kim,Ganesan Magesh,Duck Hyun Youn,Ji-Wook Jang,Jun Kubota,Kazunari Domen,Jae Sung Lee +6 more
TL;DR: The hematitle has a unique single-crystalline “wormlike” morphology produced by in-situ two-step annealing at 550°C and 800°C of β-FeOOH nanorods grown directly on a transparent conducting oxide glass via an all-solution method.
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Phosphate Doping into Monoclinic BiVO4 for Enhanced Photoelectrochemical Water Oxidation Activity
Won Jun Jo,Ji-Wook Jang,Ki-jeong Kong,Hyun Joon Kang,Jae Young Kim,Hwichan Jun,K. P. S. Parmar,Jae Sung Lee +7 more
TL;DR: Phos-phorus is a typical dopant for silicon or germanium to make itan n-type semiconductor, but it has been rarely used as anionic dopants for semiconductor photocatalysts to reduce their band-gap energies.
Journal ArticleDOI
Enabling unassisted solar water splitting by iron oxide and silicon.
Ji-Wook Jang,Chun Du,Yifan Ye,Yongjing Lin,Xiahui Yao,James E. Thorne,Erik Y. Liu,Gregory McMahon,Junfa Zhu,Ali Javey,Jinghua Guo,Dunwei Wang +11 more
TL;DR: It is shown that, by using the prototypical photoanode material of haematite as a study tool, structural disorders on or near the surfaces are important causes of the low photovoltages.