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您的检索式：作者名="Bongho Lee"
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| 1 | Cyanide-bridged W~ⅤMn~Ⅲ single-chain magnet based on an octacoordinate [W(CN)_6(phen)]^- anion显示文摘Reaction of unique [W(CN)6(phen)]- with a magnetically anisotropic Mn Schiff base yielded a WⅤ(5d)-MnⅢ(3d) bimetallic compound with a linear chain structure. The magnetic properties of the chain complex feature a ferrimagnetic behavior as well as slow magnetic relaxation typical for a single-chain magnet. | LEE JinWuk LIM KwangSoo YOON JungHee RYU DaeWon KOO BongHo KOH EuiKwan HONG ChangSeop | 2012 | Science China Chemistry2012，55，6： | 2 |
| 2 | Multifunctional Ir–Ru alloy catalysts for reversal-tolerant anodes of polymer electrolyte membrane fuel cells显示文摘To address the problem of fuel starvation in fuel-cell electric vehicles,which causes cell voltage reversal and results in cell failure when repeated continuously,we developed a reversal-tolerant anode(RTA) to promote water oxidation in preference to carbon corrosion.Graphitized carbon-supported Ir-Ru alloys with different compositions are employed as RTA catalysts in an acidic polyol solution and are shown to exhibit composition-dependent average crystallite sizes of <5.33 nm.The adopted approach allows the generation of relatively well-dispersed Ir-Ru alloy nanoparticles on the carbon support without severe agglomeration.The activity of IrRu_(2)/C for the hydrogen oxidation reaction is 1.10 times that of the stateof-the-art Pt/C catalyst.Cell reversal testing by simulation of fuel starvation reveals that the durability of IrRu_(2)/C(~7 h) significantly exceeds that of the conventional Pt/C catalyst(~10 min) and is the highest value reported so far.Thus,the developed Ir-Ru alloy catalyst can be used to fabricate practical RTAs and replace Pt catalysts in the anodes of polymer electrolyte membrane fuel cells. | Seung Woo Lee Bongho Lee Chaekyung Baik Tae-Yang Kim Chanho Pak | 2021 | Journal of Materials Science & Technology2021，，1： | 0 |
| 3 | Schottky barrier modulation of bottom contact SnO_(2) thin-film transistors via chloride-based combustion synthesis显示文摘The enhanced carrier flow at the interface between Au and SnO_(2)semiconductors,which initially form Schottky contacts,is realized using chloride-based combustion synthesis.Chloride-based combustion sys-tems can achieve chlorine(Cl)doping effects as well as conversion to crystalline SnO_(2)films at clearly lower temperatures(∼250℃)than conventional precursors.Due to the Cl doping effect,the high carrier concentration can induce thin potential barriers at the metal/semiconductor(MS)junctions,resulting in carrier injection by tunneling.As a result,compared to conventional SnO_(2)thin-film transistors,the de-vices fabricated by combustion synthesis exhibit significantly improved electrical performance with field-effect mobility of 6.52 cm 2/Vs(∼13 times),subthreshold swing of 0.74 V/dec,and on/offratio of∼10^(7)below 300℃.Furthermore,because of the enhanced tunneling carriers induced by the narrowed barrier width,the Schottky barriers are significantly reduced from 0.83 to 0.29 eV(65%decrease)at 250℃and from 0.42 to 0.17 eV(60%decrease)at 400℃.Therefore,chloride-based combustion synthesis can con-tribute to developing SnO_(2)-based electronics and flexible devices by achieving both high-quality oxide films and improved current flow at the MS interface with low-temperature annealing. | Bongho Jang Junhee Lee Hongki Kang Jaewon Jang Hyuk-Jun Kwon | 2023 | Journal of Materials Science & Technology2023，，17： | 0 |
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