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A POSTECH-KAIST joint research team has successfully developed a technique to reach near-unity efficiency of SHEL by using an artificially-designed metasurface.
Professor Junsuk Rho of POSTECH s departments of mechanical engineering and chemical engineering, and Ph.D. candidate Minkyung Kim and Dr. Dasol Lee of Department of Mechanical Engineering in collaboration with Professor Bumki Min and Hyukjoon Cho of the Department of Mechanical Engineering at KAIST have together proposed a technique to enhance the SHEL with near 100% efficiency using an anisotropic metasurface. For this, the joint research team designed a metasurface that transmits most light of one polarization and reflects the light from the other, verifying that the SHEL occurs in high-frequency region. These research findings were recently published in the February issue of Laser and Photonics Reviews, an authoritative journal in optics.
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High‐Efficiency Solution‐Processed Two‐Terminal Hybrid Tandem Solar Cells Using Spectrally Matched Inorganic and Organic Photoactive
Inorganic perovskite‐based solar cells (PSCs) are making steady progress toward commercialization, thanks to the recent development of inorganic PSCs that exhibit remarkably improved power conversion efficiency (PCE) of 18.04%, close to 20%. This confirms the viability of PSC technology for transition to commercial-scale manufacture.
Professor Sung-Yeon Jang and his research team in the School of Energy and Chemical Engineering at UNIST demonstrated the low‐temperature solution‐processed two‐terminal hybrid tandem solar cell devices based on spectrally matched inorganic perovskite and organic bulk heterojunction (BHJ). By matching optical properties of front and back cells using CsPbI
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IMAGE: Schematic diagram of a nickel-based 3D nanohelix electrocatalyst system doped with oxophilic transition metal atoms.
Incorporation of oxophilic transition metals into the nickel-based nanohelixes with abundant surface active sites optimizes the. view more
Credit: POSTECH
To resolve the energy crisis and environmental issues, research to move away from fossil fuels and convert to eco-friendly and sustainable hydrogen energy is well underway around the world. Recently, a team of researchers at POSTECH has proposed a way to efficiently produce hydrogen fuel via water-electrolysis using inexpensive and readily available nickel as an electrocatalyst, greenlighting the era of hydrogen economy.
A POSTECH research team led by Professor Jong Kyu Kim and Ph.D. candidate Jaerim Kim of the Department of Materials Science and Engineering and a team led by Professor Jeong Woo Han and Ph.D. candidate Hyeonjung Jung of the Department of Chemical Engineering have join
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IMAGE: A bladder assembloid, a reconstituted organoid with three tissue layers of the human bladder. view more
Credit: Kunyoo Shin (POSTECH)
Organoids are organ-like tissues derived from stem cells that are grown in labs, often referred to as miniature organs. Because they can imitate the structure and function of human organs, it is considered as the next-generation technology for creating artificial organs or developing new drugs. Recently, a research team in Korea introduced a new concept of mini-organs called assembloid that surpasses these organoids to structurally and functionally recapitulate human tissues. These findings were announced on December 17 (KST) in