열화학기상증착법을 이용한 Si 기판 위의 $SnO_2$ 나노와이어 제작 및 물성평가

이득희,박현규,이삼동,정순욱,김상우,Lee, Deuk-Hee,Park, Hyun-Kyu,Lee, Sam-Dong,Jeong, Soon-Wook,Kim, Sang-Woo 한국결정성장학회 2007 한국결정성장학회지 Vol.17 No.3

Vapor liquid solid 기구에 의한 열화학기상증착법을 이용하여 Si (001) 기판 위에 $SnO_2$ 나노와이어를 성장시켰다. Au 박막 (3 nm)을 성장을 위한 촉매로 사용하여 Si(001) 기판 이에 순수 SnO powder (purity, 99.9%)를 반응 원료로 대기압 하 $950{\sim}100^{\circ}C$ 온도 범위, $750{\sim}800\;sccm$ 아르곤 분위기에서 $SnO_2$ 나노와이어를 성장시켰다. X-ray diffraction 분석을 통해 성장한 $SnO_2$ 나노와이어가 tetragonal rutile 구조임을 확인하였고, transmission electron microscopy 분석을 통해 단일 나노와이어의 결정 특성을 분석하였다. 또한, 상온 photoluminescence 분석을 통해 나노와이어 샘플로부터 600 nm 부근에서 나타나는 defect level 천이에 의한 넓은 emission band를 확인함으로써 성장한 나노와이어 $SnO_2$임을 확인하였다. Single-crystalline $SnO_2$ nanowires were successfully grown on Si(001) substrates via vapor-liquid-solid mechanism in a thermal chemical vapor deposition. Large quantity of $SnO_2$ nanowires were synthesized at temperature ranges of $950{\sim}1000^{\circ}C$ in Ar atmosphere. It was found that the grown $SnO_2$ nanowires are of a tetragonal rutile structure and single crystalline by diffraction and transmission electron microscopy measurements. Broad emission located at about 600 m from the grown nanowires was clearly observed in room temperature photoluminescence measurements, indicating that the emission band originated from defect level transition into $SnO_2$ nanowires.

휘트먼의 정치의식과 노예문제

이득희 신영어영문학회 2006 신영어영문학회 학술발표회 자료집 Vol.2006 No.1

倫理經營需壓과 開放體制 實驗 (Ⅱ)

李得熙 건국대학교 1972 學術誌 Vol.14 No.1

This thesis, the second part of the study and research in the real field, first analyzing comprehensively and basically the causes of crisis in the phase of modern management, and secondly intend to find the feasible direction and method of dealing with the causes. 1. As a human being, and himself observer's dimension or operator's dimension, operating and adapting to the object of cognizance in an active and dynamic way, I intend to comprehend how to they cognize and receive the objects, and how to function and operate to it, and finally to modelize the functional process of real phenomenon symbolizing the phenomena of solar system and quantum mechanics. 2. The writer made an attempt to comprehend the causes of crisis of modern management, generalizing the contemporary general situation which came from the standing logical contradiction in comparsion with the theories of the proper structure and functional aspects of real phenomenon. 3. By analyzing the innate intention of human being which is contained in the inner side of open free consciousness of contemporary people and of its functional process, also seeking the way to detonate and extend its revealation, I stressed the proper direction of the ethical system so as to find the proper management system appropriate to the innate intention of human being which can be induced by the mutual supplement. 4. And tracing the function and the role of proper management system which occures under the close relationship with the open ethical system, by analyzing and classifying the controlling departments of management, I intend to find the concrete method fur its realization utilizing system model. And simultaneously I intend to suggest the available direction, based on the study of analysis resulted from the various experiments at the real field, to abreast with the world-wide level to which our country cannot be delayed.

倫理經營需壓과 開放體制實驗(Ⅲ)

李得熙,鄭旻溶 건국대학교 1974 學術誌 Vol.17 No.1

1.Modern civilization has been greatly influenced by western thought, in particular by western materialism. We intend to study this as it has developed historically and to compare it with eastern thought. Modern people strongly challenge a value system which is only external and has exhausted itself. The challenge is both actual and latent. We want to see clearly where modern man should go in order to harmonize the productivity and morality so proper to him by seeking those elements which will raise man to an open value system. 2.We seek the direction in which we can adapt creatively and more effectively to our times-times in which the dynamic elements of reality have been activated and compressed by time, space and the awakening of human consciousness. We want to examine closely the traditional consciousness of our people by tracing and penetrating the internal psychological elements of innate instincts which have been repressed and nullified. Thereby we hope to systematize these value elements so that they can harmonize complementary productivity and morality which proceeds from our innate vitality.

廢棄自然皮革을 利用한 新製品의 시스템的 開發

李得熙,玄義泰,鄭旻溶 건국대학교 1976 學術誌 Vol.20 No.1

고성능 박막 열전소재 및 열전소자 기술동향

이득희,김진상 한국세라믹학회 2012 세라미스트 Vol.15 No.4

펄스 레이져 증착법으로 성장한 ZnO 박막의 마이크로 PL 특성 분석

이득희,임재현,김상식,이상렬,Lee, Deuk-Hee,Leem, Jae-Hyeon,Kim, Sang-Sig,Lee, Sang-Yeol 한국전기전자재료학회 2009 전기전자재료학회논문지 Vol.22 No.9

We described the growth of undoped ZnO thin films and their optical properties changing with a various growth temperature. The undoped ZnO thin films were grown on $c-Al_2O_3$ substrates using pulsed laser deposition (PLD) at room temperature, 200, 400, and $600^{\circ}C$, respectively. Field emission microscopy (FE-SEM) measurements showed that the grain size of undoped ZnO thin films are increasing as a increase of growth temperature. In addition, we were investigated that the structural and optical properties of undoped ZnO thin films by x-ray diffraction (XRD) and photoluminescence (PL) studied. Also, we could confirmed that the exciton luminescence was strongly related to charge trap by grain boundary of the samples using micro-PL measurement.

수술실 환경에서의 로봇 및 IT기술의 융합 적용

이득희 대한기계학회 2013 기계저널 Vol.53 No.11

生産行動의 基在構造

李得熙,鄭旻溶 건국대학교 1980 學術誌 Vol.24 No.2

This study intends to pursue the essence of value systems which enable us to enhance productivity and elasticity of management based on maximum Co-operation of the majority. For this purpose 1.We made an attempt to comprehend the characteristics of the modern manufacturing enterprise by analyzing the developing processes of industrial society since the modernization of western society. That is, as each functional area of productive activity is divided and specialized by industrialization and production order, the value systems and social institutions have been transformed little by little according to the ruing class; and social relations according to the dominance of functional elements of production; Capital, market, and manufacturing (labor, engineering). 2.We intend to understand the fundamental structure of the psychological attributes of human-beings and its manifestation mechanism. In adapting oneself to the external world, man superposed with flesh, spirit, and soul has an instinctive propensity to achieve harmonious stability and growth of humanity, productivity, and religiousity. And its achievement can be supported by individual purity and subjectivity. 3.Finally, we intend to suggest the available direction of the production system which can result in the harmonious development of these three attributes of man. Only when the dependency of a moral oriented open system surpassed that of a money oriented closed system, not only individual truth-oriented consciousness and creativity (or power of Research and Development) is activated and complemented mutually, but also in social aspects, promotion of Gross National Moral (G NM) and increment of economic elasticity is arhieved complementarily and extended.

Substitution mechanism of Ga for Zn site depending on deposition temperature for transparent conducting oxides

이득희,김경원,전윤수,김상식,이상렬 한국물리학회 2012 Current Applied Physics Vol.12 No.6

High quality transparent conductive gallium-doped zinc oxide (GZO) thin films were deposited on glass substrates using rf-magnetron sputtering system at the temperature ranging from room temperature (RT) to 500 ℃. The temperature-dependence of Ga doping effect on the structural, optical and electrical properties in ZnO has been investigated. For the GZO thin films deposited at over 200 ℃, (103) orientation was strongly observed by X-ray diffraction analysis, which is attributed to the substitution of Ga elements into Zn site. X-ray photoelectron spectroscopy measurements have confirmed that oxygen vacancies were generated at the temperature higher than 300 ℃. This might be due to the effective substitution of Ga3þ for Zn site at higher temperature. It was also found that the optical band gap increases with deposition temperature. The optical transmittance of GZO thin films was above 87% in the visible region. The GZO thin films grown at 500 ℃ showed a low electrical resistivity of 4.50 × 10-4 U cm,a carrier concentration of 6.38 × 1020 cm-3 and a carrier mobility of 21.69 cm2/V.