• Korean Journal of Metals and Materials
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• v.49 no.2
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• pp.187-191
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• 2011

In order to obtain a suitable back contacting electrode for $Cu(InGa)Se_2$-based photovoltaic devices, a molybdenum thin film was deposited using a chemical vapor transport (CVT) during the hydrogen reduction of $MoO_3$ powder. A $MoO_2$ thin film was successfully deposited on substrates by using the CVT of volatile $MoO_3(OH)_2$ at $550^{\circ}C$ for 60 min in a $H_2$ atmosphere. The Mo thin film was obtained by reduction of $MoO_2$ at $650^{\circ}C$ in a $H_2$ atmosphere. The Mo thin film on the substrate presented a low sheet resistance of approximately $1{\Omega}/sq$.

• Journal of the Korean Vacuum Society
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• v.4 no.2
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• pp.150-155
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• 1995

Mo 단결정 표면에 황을 흡착시켜 형성된 상층구조를 AES와 LEED로써 연구하였다. 황의 피복률은 sulfur gun으로부터 생성되는 S2 flux로써 조절하였으며, 여러 가지 흡착된 황의 상층구조를 LEED로써 관찰하였다. 황화된 Mo 표면에서 탈산소반응(HDO)의 모델 분자로서, Furan의 흡착과 반응을 승온반응분광법(TPRS)으로 조사하였다. 낮은 온도에서 Furan 분자의 헤테로 원자는 직접 이탈하여 안정한 기체상의 반응 생성물인 일산화탄소를 형성하였으며, 이 반응은 Mo의 (100) 및 (110)면에서 각각 깨끗한 표면 및 황화된 표면에 관계없이 일어났다. 이를 바탕으로 Mo 표면에서 Furan의 분해반응에 대한 메카니즘을 제안하였다.

• Proceeding of EDISON Challenge
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• 2015.03a
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• pp.373-377
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• 2015

이 연구에서는 원자 궤도 함수 기반 DFT 전자구조 계산을 이용해서 최근 각광받고 있는 이차원 물질인 MoS2 monolayer의 S 자리와 Mo 자리에 각각 전자가가 다른 원자를 치환하였을 때의 도핑 특성을 Density of States (DOSs)와 밴드구조 등의 전자구조를 통해 분석해 보았다. S자리에 Cl, Si, I, B, C, Mo 자리에는 Hf, Ta, 그리고 Re을 치환해 보았으며 계산 결과 S자리에 Cl을 치환했을 때 가장 얕은 acceptor level (VBM으로부터 0.08 eV)이 형성되었으며, Mo자리에 Re를 치환했을 때에는 resonant state를 형성하였다. 또한 Mo자리에 Ta를 치환했을 ? 가장 얕은 donor level (CBM으로부터 0.02 eV)가 형성되었다.

• Journal of the Korean Institute of Telematics and Electronics
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• v.21 no.3
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• pp.13-18
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• 1984

This paper suggests an algorithm which can perform microoperations (MO'S) in parauel by considering concurrency of MO'S and resource allocation in horizontal microprogams. The algorithm can be obtained the result which reduces execution time and the space of control memory in microprogrammed digital systems by minimizing the total number of microinctructions by combining MO'5, which can be performed in paiallel by assigning a weight to each MO in the SLM (straight line microprogram), into a microinstruction.

• Proceedings of the Korean Vacuum Society Conference
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• 2016.02a
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• pp.336-336
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• 2016

We have investigated magneto-transport properties in a MoS2 lateral spin-valve structures for different ferromagnetic CoFe electrode shapes and MoS2 channel lengths. For these devices, high quality and large-scale MoS2 thin films were synthesized through sulfurization of epitaxial MoO3 films and these sulfurized-MoO3 thin films properties are in good agreements with measurements on exfoliated MoS2 film. Magneto-transport measurements show a clear rectangular magnetoresistance signal of 0.16% and a spin polarization of 0.00012%. By using the one-dimensional spin diffusion equation, we extracted the spin diffusion length and coefficient, finding them to be 12 nm and $1.44{\times}10-3cm2/s$, respectively. These small values of magnetoresistance and spin polarization could be enhanced by appeasement of conductivity mismatch between the ferromagnet and semiconductor interface.

• Tribology and Lubricants
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• v.7 no.1
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• pp.46-54
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• 1991

As the additives of engine oil, Mo-DTP and Zn-DTP were studied by experimental works. These additives were added to the engine oil with various ratios, which was an attempt to find out the best ratio at which the wear and friction can be reduced effectively; Mo-DTP is belived to be able to decrease the frictioh of the sliding metal, while Zn-DTP is known as a very stable additive for oxidation at high temperature in addition to the good antiwear property. This study showed that the optimum addition ratio of Mo-DTP and Zn-DTP is 3:2. This oil made it possible to slide steel with minimum wear and low friction over various lovels of load at moderate temperature. But as the oil temperature increased, the wear slid with Mo-DTP oil was increased more. The reason of this result was that Mo-DTP deteriorated the property of oil at high temperature by the higher oxidation and viscosity of Mo-DTP oil than that of Zn-DTP oil.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.8 no.2
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• pp.167-172
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• 2007

In the case of gear oil which is used under severe running condition in automotive, the various additives is used fur increasing the ability of enduring against seizure. In this paper, the wear and friction characteristics observed using the Falex friction and wear test machine in adding the $MoS_2$ to auto gear oil. As the result of experimentation, the friction and wear characteristics is the most excellent in adding concentration range of the $MoS_2\;2.5{\sim}5wt.%$.

• Journal of the Korean Institute of Telematics and Electronics A
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• v.28A no.1
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• pp.85-90
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• 1991

MoSi$_2$ was formed by RTA (Rapid Thermal Annealing at 600-1200$^{\circ}C$) under Ar ambient from the Mo-Si mixture film which was deposited on single and poly-Si substrates. The MoSi$_2$ film was investigated by SEM, X-ray diffractometer, four-points probe and AES profile. It was found that the resistivity, the surface roughness, and the formation temperature of MoSi$_2$ were independent on the type of Si substrates. The formation of MoSi$_2$ started from 800$^{\circ}C$ and the phse transformation was completed at 1000$^{\circ}C$. The stable MoSi$_2$ with the resistivity of 74${\mu}{\Omega}$-cm was formed at 1200$^{\circ}C$.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.5 no.6
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• pp.491-494
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• 2004

[ $H_2$ ] uptake into $Pt/MoO_{3}$ was enhanced with an increased calcination temperature. Selective CO pulse chemisorption demonstrated that free Pt surface area was decreased as calcination temperature was increased. Characteristic techniques were dedicated to elucidate the closer contact at adlineation sites between Pt and $MoO_3$ substrates. Calcination resulted in supplying the hydrogen access into more $MoO_3$ particles and controlling the kinetics of hydrogen uptake.

• 한국균학회소식:학술대회논문집
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• 2015.11a
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• pp.23-23
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• 2015

Rice blast disease caused by M. oryzae is the most devastating fungal disease in rice. During the infection process, M. oryzae secretes a large number of glycosyl hydrolase (GH) proteins into the apoplast to digest host cell wall and assist fungal ingress into host tissues. In this study, we identified a novel M. oryze arabinofuranosidase B (MoAbfB) which is secreted during fungal infection. Live-cell imaging exhibited that fluorescent labeled MoAbfB was highly accumulated in fungal invasive structures such as appressorium, tips of penetration peg, biotrophic interfacial complex (BIC), as well as invasive hyphal tip. Deletion of MoAbfB mutants extended biotrophic phase followed by enhanced disease severity, whereas, over-expression of OsMoAbfB mutant induced rapid defense responses and enhanced rice resistance to M. oryzae infection. Furthermore, exogenous treatment of MoAbfB protein showed inhibition of fungal infection via priming of defense gene expression. We later found that the extract of MoAbfB degraded rice cell wall fragments could also induce host defense activation, suggesting that not MoAbfB itself but oligosaccharides (OGs) derived from MoAbfB dissolved rice cell wall elicited rice innate immunity.