Search Results - "Hahn, Yoon‐Bong"

Highly stable and Efficient Perovskite Solar Cells Based on FAMA‐Perovskite‐Cu:NiO Composites with 20.7% Efficiency and 80.5% Fill Factor by Wang, Yousheng, Mahmoudi, Tahmineh, Hahn, Yoon‐Bong

“…To solve critical issues related to device stability and performance of perovskite solar cells (PSCs), FA0.026MA0.974PbI3−yCly‐Cu:NiO (formamidinium…”
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SrTiO3/Al2O3‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency by Mahmoudi, Tahmineh, Wang, Yousheng, Hahn, Yoon‐Bong

“…For practical use of perovskite solar cells (PSCs) the instability issues of devices, attributed to degradation of perovskite molecules by moisture, ions…”
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Ultra thin NiO nanosheets for high performance hydrogen gas sensor device by Nakate, Umesh T., Ahmad, Rafiq, Patil, Pramila, Yu, Y.T., Hahn, Yoon-Bong

“…[Display omitted] •Unstacked & ultra thin 2-D NiO nano sheets synthesis via hydrothermal route.•High response and good selectivity towards H2 gas at 250…”
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Recent advances in nanowires-based field-effect transistors for biological sensor applications by Ahmad, Rafiq, Mahmoudi, Tahmineh, Ahn, Min-Sang, Hahn, Yoon-Bong

“…Nanowires (NWs)-based field-effect transistors (FETs) have attracted considerable interest to develop innovative biosensors using NWs of different materials…”
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Nonenzymatic flexible field-effect transistor based glucose sensor fabricated using NiO quantum dots modified ZnO nanorods by Jung, Da-Un-Jin, Ahmad, Rafiq, Hahn, Yoon-Bong

“…[Display omitted] •A non-enzymatic flexible FET based glucose biosensor was fabricated.•Grown ZnO NRs between source-drain were modified with NiO QDs by…”
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ZnO nanorods array based field-effect transistor biosensor for phosphate detection by Ahmad, Rafiq, Ahn, Min-Sang, Hahn, Yoon-Bong

“…[Display omitted] •Growth of ZnO nanorods on substrate via low-temperature aqueous route.•Functionalization of ZnO NRs with pyruvate oxidase to detect…”
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Wide Linear-Range Detecting Nonenzymatic Glucose Biosensor Based on CuO Nanoparticles Inkjet-Printed on Electrodes by Ahmad, Rafiq, Vaseem, Mohammad, Tripathy, Nirmalya, Hahn, Yoon-Bong

“…Inkjet-printed copper oxide nanoparticles (CuO NPs) on silver electrodes were used to fabricate the nonenzymatic glucose biosensor. The inkjet-printed CuO NPs…”
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Solution Process Synthesis of High Aspect Ratio ZnO Nanorods on Electrode Surface for Sensitive Electrochemical Detection of Uric Acid by Ahmad, Rafiq, Tripathy, Nirmalya, Ahn, Min-Sang, Hahn, Yoon-Bong

“…This study demonstrates a highly stable, selective and sensitive uric acid (UA) biosensor based on high aspect ratio zinc oxide nanorods (ZNRs) vertical grown…”
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Highly Efficient Non-Enzymatic Glucose Sensor Based on CuO Modified Vertically-Grown ZnO Nanorods on Electrode by Ahmad, Rafiq, Tripathy, Nirmalya, Ahn, Min-Sang, Bhat, Kiesar Sideeq, Mahmoudi, Tahmineh, Wang, Yousheng, Yoo, Jin-Young, Kwon, Dae-Wook, Yang, Hwa-Young, Hahn, Yoon-Bong

“…There is a major challenge to attach nanostructures on to the electrode surface while retaining their engineered morphology, high surface area, physiochemical…”
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Fabrication of highly sensitive uric acid biosensor based on directly grown ZnO nanosheets on electrode surface by Ahmad, Rafiq, Tripathy, Nirmalya, Jang, Na Keum, Khang, Gilson, Hahn, Yoon-Bong

“…•The ZnO nanosheets were directly synthesized on the electrode surface by solution process.•Used successfully for the fabrication of uric acid biosensor.•The…”
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Highly stable hydrazine chemical sensor based on vertically-aligned ZnO nanorods grown on electrode by Ahmad, Rafiq, Tripathy, Nirmalya, Ahn, Min-Sang, Hahn, Yoon-Bong

“…[Display omitted] •Development of high-performance hydrazine chemical sensor electrodes.•ZnO NRs on Ag electrode provided high surface and easy substrate…”
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Deposition of nanomaterials: A crucial step in biosensor fabrication by Ahmad, Rafiq, Wolfbeis, Otto S., Hahn, Yoon-Bong, Alshareef, Husam N., Torsi, Luisa, Salama, Khaled N.

“…[Display omitted] •Nanomaterials deposition onto a conductive electrode is a crucial step for obtaining improved performance from the constructed…”
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A Highly Sensitive Nonenzymatic Sensor Based on Fe2O3 Nanoparticle Coated ZnO Nanorods for Electrochemical Detection of Nitrite by Ahmad, Rafiq, Ahn, Min‐Sang, Hahn, Yoon‐Bong

“…Monitoring of nitrite is needed for the management of nitrite contamination and to ensure the welfare of environment and human health. Hence, it is important…”
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Fabrication of a solution-gated transistor based on valinomycin modified iron oxide nanoparticles decorated zinc oxide nanorods for potassium detection by Ahn, Min-Sang, Ahmad, Rafiq, Bhat, Kiesar Sideeq, Yoo, Jin-Young, Mahmoudi, Tahmineh, Hahn, Yoon-Bong

“…[Display omitted] There are considerable interests to detect and monitor the abnormal level of minerals in water for avoiding/preventing any toxic effects…”
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Low-Temperature Synthesis of Flower-Shaped CuO Nanostructures by Solution Process:  Formation Mechanism and Structural Properties by Vaseem, Mohammad, Umar, Ahmad, Kim, Sang Hoon, Hahn, Yoon-Bong

“…Flower-shaped CuO nanostructures have been prepared by the simple solution process at 100 °C using copper nitrate, NaOH, and hexamethylenetetramine (HMTA) for…”
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Wide linear-range detecting high sensitivity cholesterol biosensors based on aspect-ratio controlled ZnO nanorods grown on silver electrodes by Ahmad, Rafiq, Tripathy, N., Hahn, Yoon-Bong

“…We have fabricated highly sensitive and wide linear-range detecting cholesterol biosensors based on zinc oxide nanorods (ZnO NRS). We report, for the first…”
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High performance cholesterol sensor based on ZnO nanotubes grown on Si/Ag electrodes by Ahmad, Rafiq, Tripathy, Nirmalya, Kim, Sang Hoon, Umar, Ahmad, Al-Hajry, A., Hahn, Yoon-Bong

“…Zinc oxide nanotube (ZNT) arrays were grown on Si/Ag substrate by one-step chemical process in an aqueous solution and further used as a working electrode to…”
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Direct growth of GaN layer on carbon nanotube-graphene hybrid structure and its application for light emitting diodes by Seo, Tae Hoon, Park, Ah Hyun, Park, Sungchan, Kim, Yong Hwan, Lee, Gun Hee, Kim, Myung Jong, Jeong, Mun Seok, Lee, Young Hee, Hahn, Yoon-Bong, Suh, Eun-Kyung

“…We report the growth of high-quality GaN layer on single-walled carbon nanotubes (SWCNTs) and graphene hybrid structure (CGH) as intermediate layer between GaN…”
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Fabrication of ZnO Nanowires Using Nanoscale Spacer Lithography for Gas Sensors by Ra, Hyun-Wook, Choi, Kwang-Sung, Kim, Jin-Hwan, Hahn, Yoon-Bong, Im, Yeon-Ho

“…Sensitive nanowires: ZnO nanowire arrays are fabricated by nanoscale spacer lithography, a top‐down paradigm consisting of photolithography, ZnO atomic‐layer…”
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Graphene and its derivatives for solar cells application by Mahmoudi, Tahmineh, Wang, Yousheng, Hahn, Yoon-Bong

“…Graphene has played the role of game-changer for conductive transparent devices indebted to its unique two dimensional (2D) structures and gained an…”
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