蒸氣反應法에 依한 螢光物質의 Photoluminescence : ZnS:Mn,Cl 및 ZnS:Cu,Cl을 中心으로 on the Performance of ZnS:Mn,Cl and ZnS:Cu, Cl

손련규 安東大學 1979 安東大學 論文集 Vol.1 No.1

The study on the luminous phenomena of fluorescent substances investigated by B. Gudden, R. W.Phol, and R. Tomascheck in 1920`s made rapid progress since 1952 and was at the peak in 1960`s. EL-Lamp developed by C. W. Jerome of the Sylvania Co. and EL-panel inserted with fluorescent substances have come into the market now. They are applied to various uses such as computers, various kinds of electronic fluorescent counting panel, electronic watches and Laser oscillation. They also have made a great contribution to the development of electronic industry along with an active research in the field of electronic luminescence. The purpose of this study is to manufacture a PL fluorescent body with the matrix of ZnS fluorescent material: 1) Manufacturing PL-cell by synthesizing PL-powder of ZnS:Mn, Cl and ZnSrCu, Cl. 2) The main purpose of this study is the solution of basic technical problems such as the way to synthesize fluorescent material in the laboratory, the introduction of impure material, manufacturing transparent membrane, and formation of thin film by investigating and comparing the luminous characteristics of PL-cell of thin film type. The results of the experiment to accomplish the above purposes are as follows: 1) Co-activator Cl of PL powder did not take a direct role in luminescence. According to the increase or decrease of the amount of main activator Cu with the mixture of 10% ZnS, color band moved from blue to green color, and from orange to yellow color in accordance with the increase or decrease of the amount of Mn. 2) Inner temperature of the electric furnace in forming the thin film was suitable at 550-600℃ and H2S-gas pressure was effective within l0mmHg. 3) H2S-gas required in vapor reaction was continnously supplied by the stored H2S-gas of deliquesced cryogen of dry ice and aceton generated by Kipp. Equip. 4) In ZnS, main powder for PL, the degree of pulverization and the problem of heat treatment was technically required in view of the growth of crystal particle and the efficiency of luminescence.

內部形 EL의 製作 및 發光調査

손련규 安東初級大學 1978 安東初級大學 論文集 Vol.1 No.1

The luminescence of flourescent materials by the electric field was researched in 1920, and G. Destriau after O.W. Lossew also studied the luminescence of flourescent materials mixed with a dielectric by A.C. electric fluid in 1936. This experiment was the first one and since then it has been continued and applied to Lamp(EL-Lamp), Amplifier(Light-Amp), X-ray(an image Amp. set), Panel(dial of electron manufacture). And these have contributed much to producing Laser Oscillation. The object of this research is as follows : 1) Making the transparent conductive electrode with thin film and investigating its electric and optical properties. 2) Making the intrinsic EL-cell that contacted with electrode at the Ness-glass doped with mixed EL-powder and investigating the relation to its luminescence by adding voltage and frequency. The results of this experiment, were found as follows : 1) The quantity of activator Cu to ZnS : Cu powder is appropriate to ~ 10^(-3)gm/mol. ZnS or so. 2) ZnS : Cu, C1 powder has oxidation in the air and this powder should be bake with the N_(2) or H_(2)S gas flowed in the electric furnace. 3) In this state, ZnS : Mn, C1 cell has the color of bright yellow and ZnS : Cu. C1 the orange color, but the intensity of luminescence was related to a certain frequency and voltage applied. 4) PL cell did not indicate EL-effect but EL cell showed PL-effect without fail.

MIS型 Al/p-Si 太陽電池의 製作과 特性에 관한 硏究

손련규,노경석 安東大學 1987 安東大學 論文集 Vol.9 No.1

The fabrication procedure and properties of the Al/p-Si MIS solar ceil was developed to the photo-lithography and anti-reflective coating method. The optimum temperature for oxide growing of Al/p-Si solar cells was found to be about 450℃ for 20 minutes oxygen flow time. The best results showed that V_(oc)=0.52V, J_(sc)=23.5mA, and FF=0.65, which represent that the conversion efficiency is 11% at the cell area 0.722㎠.

眞空蒸着 및 噴霧法에 依한 SIS型 太陽電池의 製作과 特性調査

손련규 安東大學 1982 安東大學 論文集 Vol.4 No.1

Earth energy has so limitedly burying underground that One should to investigation new energy for the substitution of earth energy. Our mankind was going to find the lasting Solar Energy that could convert into the electric energy. These researches was continued by Becquerel(1839), Adam & Day(1877) and Grondahl(1933). In 1954, Chopin, Fuller and Pearson team invented solar cell initially. This study is the fabrication of SnO_(2)/n-Si solar cell by vacuum evaporation and spray pyrolysis methods and investigation of it`s properties. SnO_(2) thin film was deposited on the (100) surface of Si single crystal by spray pyrolysis method and the interfacial oxide growing of this cell was get to be about 800c.c/min, 500℃ for 5 min. with O2-gas flowing. The best cell, under AM-1 (98mW/cm2) after A. R coating, have the short circuit photo-current density (Isc), open circuit voltage (Voc), fill factor (F.F) and energy conversion efficiency (h) were 40. 0mA/cm2, 0.40V, 0.678, 11.069% respectively.

傳導性 電極의 製作과 物理的 特性 : SnO2 薄膜을 中心으로

손련규 安東大學 1981 安東大學 論文集 Vol.3 No.1

The Electro-Conducting glass that was found by Littleton (1931) and invented by McMaster (1947) is closely relation to fabricate of EL cells and Solar-cells. Its electric conductivity and light transparency depend on the phenomena of EL-cells and the efficiency of Solar cells. The fabrication of transparent and conductive electrode was improved by D. Curie (1952), R. K. Orthuber (l954) and B. Kazan (1960). Now-a-days, We are using ① Vacuum deposition, ② Sputtering, ③ Spray and ④ CVD method respectively to fabricate thin films on substrates. In this report, I made n type SnO2 thin film by the Spray Pyrolysis Method for low costs and simple equipments. We can get wonderful results by l0c. c/min. flow speed for l~2min. on 450~500℃ for 1~1.5 hr. in electric furnace. As the result, its specific resistance was 2×10-3 Ω-cm at 1,500~2,000A thickness and light transparency was more than 80%.

HCP 裝置에 依한 高密 Ar, He Plasma의 焦點形成

손련규 安東大學 1986 安東大學 論文集 Vol.8 No.1

새로운 고출력 plasma발생용 HCP (hypocycloidal pinch)장치에 의한 밀한 plasma는 이 장치의 중심 양전극 (양극과 음극) 사이에 전류 sheet에 의해서 축부분에 고밀 (Ne>10 (18)/㎤), 고온 (Te~1KeV)의 초점이 형성되며, 이때 발생되는 plasma X-선은 micron이하의 사진식각 (submicron lithography)용 광원으로 사용될 수 있음이 검토된다. A new type of high power hypocycloidal pinch (HCP) apparatus consisting of two disk electrodes was investigated as a possible soft X-ray source for a submicron lithography. Dense plasma foci are produced on the axis by collapse of the current sheets which compress and heat the plasma. The density and the temperature of the plasma focus reach Ne (density)〉10(18-20el)/㎤ and Te (temperature)~I KeV when the energy of 20 KJ is applied on the HCP device.

Spray方法에 의한 Cd2SnO4 薄膜의 物理的 特性

손련규,노경석 安東大學 1986 安東大學 論文集 Vol.8 No.1

Cd_(2)SnO_(4) transparent conducting films were deposited on the pyrex glass plate by spray pyrolysis method. The dependence of their electrical, optical and structural properties were investigated. The optimum conditions were such that substrate temperature was above 410℃, InCl3 doping rate was 8 wt%, the values of sheet resistance and transmittance of the films in visible region fabricated under these optimum conditions were 80Ω/□ and 90~94% respectively.

氣相反應法에 依한 II~IV族 化合物의 Photoluminescence 調査

손련규 安東大學 1984 安東大學 論文集 Vol.6 No.1

The main powder of PL are obtained by firing at 800~1,000˚C for l~3hrs in electric furnace, and the co-activators and activators used are Cl (NaCl)and Mn (MnCl_(2),4H_(2)O) Cu (CuCl_(2),2H_(2)O). X-ray analysis of PL-powders shows the crystal structure by the diffractive image of (110), (211) and (311) phases. The PL-Cell made by mixed these main co-activator and activator are observed the photoluminescence spectrum by varying the firing time and temperature, and modifying the ratio of the activators. The Orange band spectrum of ZnS: Mn, Cl cell are shift to long wavelength (6,000Å) more then ZnS: Cu, Cl cell (5, 500Å).

電場發光現像에 關한 初期硏究와 Gudden-Pohl 및 Dechene 效果

손련규 安東大學 1990 安東大學 論文集 Vol.12 No.1

After 1920 year, many others have been extensively studied and successfully interpreted about luminescence phenomena, but some of observations on the electroluminescence phenomena are not yet well understood and will have to be the subject of further experimentation for some time to come. Until now, though some have been reported for CdS, systematic experiments on electro-photoluminescence have not yet been carried out on single crystal specimens of ZnS. Such experiments are certainly needed to complete our picture of these phenomena. Their interpretation should become a straightforwared matter when the electrical luminescence phenomena which occdur without optical stimulus are more thoroughly understood. Further references to electro-photoluminescance can be found in an extensive bibliography prepared by H.F.Ivey.

한국전력의 개발과 전망에 관한 고찰 (1)

손련규 安東敎育大學 1970 論文集 Vol.3 No.1

The core element of the prosperity of the modern country is dependent on the exploitation of the boundless electric power. Above of all, our electric service has been endeavouring to achieve the desired purpose in spite of the difficulties since the Liberation, but the demand and the industrial development increasing by the accelerative speed has exceeded the supply, and couldn't but avoid the poverty of that in our poor resources. In this way, when we recognize that the electric service shall be the motive power of the industrial restoration, we must make still more efforts for the development, and to the best of our ability, through the analysis, examination, and studying in detail for the new prontier concerning the generation of the electric power growing day by day, we shall be able to approach to the cultural life's level of the advanced countries. In the consideration of the twenty years passed by after the interruption of the electricity from the North Korea, innumerable painful experiences made the free Koreans feel the necessity of it heartly, but we are beyond to reach the world level and we are yet wondering of the underdeveloped countries. However, according to the resolution of the Atomic Power Committee in Jan. 12, 1968, they reported that we shall be able to constructct the Atomic Power Plant-1.5 million KW in total from 1974 between 1976, and in the prospect of the second five-year plan for the development of the electric power, I want to expect a bright vision of the territorial reconstruction and unification which is a national long-cherished desire, and especially I wish an excellent science-tradition will be achieved in my loving fatherland Korea for-the eternal development of the atomic power. And I wish again an everlasting science-tradition, which can be restored by the spirit of the Poenix on the miserable disasters of war and the racial sufferings, to be achieved in this country. I have endeavoured to get the abundant and exact data many years, but I am sorry I couldn't gather the more main materials extensively. Only I am happy if this little studying will be contributed in the future and analysis about the service of the Korean electric power.