http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
습식텍스쳐를 이용한 단결정 실리콘 광학적 · 전기적 특성 연구
한규민(Han Kyu-min),유진수(Yoo Jin-su),유권종(Yoo Kwon-jong),이희덕(Lee Hi-deok),최성진(Choi Sung-jin),권준영(Kwon Jun-young),이준신(Yi Jun-sin) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.4
The presence of ultrasonic wave in caustic cleaning process enhances the remove pollutants, and more homogeneous, textured structure. The silicon wafers, cleaning in Deconex OF 145 solution (0.5~2wt %) with DIW under ultrasonic environment for 5 min. The presence of uniform thin layer of SiO2 on c-Si surface enhances etching rate in the caustic etching mixture solution of NaOH (1.5 wt %), DI water and IPA (6 wt %) at 90℃ for 20 min and results in a fine, more homogeneous and small textured structure.
습식텍스쳐를 이용한 삼결정 실리콘 광학적.전기적 특성 연구
한규민(Han, Kyu-Min),유진수(Yoo, Jin-Su),유권종(Yoo, Kwon-Jong),이희덕(Lee, Hi-Deok),최성진(Choi, Sung-Jin),권준영(Kwon, Jun-Young),김기호(Kim, Ki-Ho),이준신(Yi, Jun-Sin) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.06
Two different wet etching solutions, NaOH 40% and Acid, were used for etching in tri-crystalline Silicon(Tri-Si) solar cell fabrication. The wafers etched in NaOH40% solution showed higher reflectance compared to the wafers etched in Acid solution after SiN_x deposition. In light current-voltage results, the cells etched in Acid solution exhibited higher short circuit current and open circuit voltage than those of the cells etched in NaOH 40% solution. We have obtained 16.70% conversion efficiency in large area(156cm²) Tri-Si solar cells etched in Acid solution.
습식텍스쳐를 이용한 다결정 실리콘 광학적ㆍ전기적 특성 연구
한규민(Kyumin Han),유진수(Jinsu Yoo),유권종(Kwonjong Yoo),이희덕(Hideok Lee),최성진(Sungjin Choi),권준영(Junyoung Kwon),김기호(Kiho Kim),이준신(Junsin Yi) 한국태양에너지학회 2009 한국태양에너지학회 학술대회논문집 Vol.2009 No.11월
Multi-crystalline silicon surface etching without grain-boundary delineation is a challenging task for the fabrication of high efficiency solar cell. The use of sodium hydroxide - sodium hypochlorite (NaOH40% + NaOCl 12%) solution for texturing multi-crystalline silicon wafer surface in solar cell fabrication line is reported in this article. in light current-voltage results, the cells etched in NaOH 40% + NaOCl 12% = 1:2 exhibited higher short circuit current and open circuit voltage than those of the cells etched in NaOH 40% + NaOCl 12% = 1:1 solution. we have obtained 15.19% conversion efficiency in large area(156㎠) multi-Si solar cells etched in NaOH 40% + NaOCl 12% = 1:1 solution.
한규민(Han Kyumin),고종현(Ko Jonghyun),정원대(Jung Wondea),강정석(Kang Jungseok) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
In order to prevent railway accidents due to human errors which have been recognized to be the most important cause in the railway accidents, human errors should have been controlled based on systematical analysis of the human errors, and countermeasures should be derived to reduce human error probability. Among several factors inducing human errors, task load (or task complexity) is representative. In order to reduce the human error, a systematic analysis should be undertaken to evaluate task load. In this study, task load according to task types of railway worker who are a safety critical staff have been quantitatively analyzed based on NASA-TLX(Task Load Index).
레이저를 이용한 결정질 실리콘 태양전지의 Double Texturing 제조 및 특성
권준영,한규민,최성진,송희은,유진수,유권종,김남수,Kwon, Jun-Young,Han, Kyu-Min,Choi, Sung-Jin,Song, Hee-Eun,Yoo, Jin-Soo,Yoo, Kwon-Jong,Kim, Nam-Soo 한국재료학회 2010 한국재료학회지 Vol.20 No.12
In this paper, double texturization of multi crystalline silicon solar cells was studied with laser and reactive ion etching (RIE). In the case of multi crystalline silicon wafers, chemical etching has problems in producing a uniform surface texture. Thus various etching methods such as laser and dry texturization have been studied for multi crystalline silicon wafers. In this study, laser texturization with an Nd:$YVO_4$ green laser was performed first to get the proper hole spacing and $300{\mu}m$ was found to be the most proper value. Laser texturization on crystalline silicon wafers was followed by damage removal in acid solution and RIE to achieve double texturization. This study showed that double texturization on multi crystalline silicon wafers with laser firing and RIE resulted in lower reflectance, higher quantum yield and better efficiency than that process without RIE. However, RIE formed sharp structures on the silicon wafer surfaces, which resulted in 0.8% decrease of fill factor at solar cell characterization. While chemical etching makes it difficult to obtain a uniform surface texture for multi crystalline silicon solar cells, the process of double texturization with laser and RIE yields a uniform surface structure, diminished reflectance, and improved efficiency. This finding lays the foundation for the study of low-cost, high efficiency multi crystalline silicon solar cells.
이영석(Young-seok Yi),한규민(Kyu-min Han),김경해(Kyung-hae Kim),이준신(Jun-sin Yi) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.10
높은 효율의 태양전지의 개발은 태양전지 상용화에 꼭 필요한 일이다. 고효율 태양전지 개발을 위해 태양전지 시뮬레이션 프로그램인 PC1D를 이용하여 현재 많이 사용되고 있는 p-n 접합형 실리콘 태양전지의 변환효율에 영향을 주는 요소들, 특히 웨이퍼 표면의 texturing과 doping 농도를 변화시켜 최적의 요건을 찾고자하였다. texture depth = 3㎛, texture angle = 80°, base의 비저항 = 0.1Ω · ㎝, emitter doping 농도 = 5e+18㎝?³ 에서 20.37%의 고효율을 얻을 수 있다.
고종현(Ko Jonghyun),한규민(Han Kyumin),정원대(Jung Wondea) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
Railway accidents/incidents occur because of many reasons. Human error by the railway staff or personnel takes a major part of those reasons. In order to reduce and prevent railway accidents/incidents, appropriate measures should be developed to remove root causes induced in human error. A systematic study for analysing causes of human errors and for developing an effective management is necessary. Detailed analysis of the railway traffic signaller"s tasks should be preferentially performed for this purpose. This paper introduces the results of analysis for the types and characteristics of the railway traffic signaller"s tasks. As a result of the analysis, the railway traffic signaller"s tasks can be decomposed into 24 tasks in total, and also be divided into the general task and the emergency task. The railway traffic signaller"s tasks are characterized to require continual confirmation and observation activities, and sometimes immediate decision and action.
다문화 가족 대상 가정방문 양육지원 프로그램 개발을 위한 델파이 연구
손현미 ( Son Hyunmi ),홍윤경 ( Hong Yunkyung ),한규민 ( Han Gyumin ) 부산대학교 간호과학연구소 2021 글로벌 건강과 간호 Vol.11 No.1
Purpose: This study was conducted to identify essential components of home-visit parenting support programs for multicultural families with young children. Methods: The Delphi method was used with a group of experts to validate the elements. The instrument was developed through focus group interviews and a literature review. We derived 33 draft items on the degree of performance and importance of programs (Domain I), and eight draft items on the need for and urgency of improvement of programs (Domain II). Using surveys comprising items rated on a five-point Likert scale and open-ended items, we conducted two rounds of the Delphi method with 36 and 29 experts, respectively. The content validity ratio (CVR) and Kendall’s W for agreement were calculated for the experts’ opinions. Results: Items with a CVR value of less than .31 in the first Delphi survey were not excluded from the second round to confirm consensus in the latter. As a result of the second Delphi, three items in Domain I and one item in Domain II showed a CVR of .33 or less. Finally, 23 items were derived in Domain I and seven in Domain II. All Kendall’s W values were statistically significant. Conclusion: It is necessary to develop appropriate teaching aids that reflect the needs of the subjects and considers their literacy levels. In addition, it is necessary to expand the target of these programs to multicultural families. This study can be used as a basis for planning and executing programs and services for multicultural families.
권준영(Kwon Jun-young),유진수(Yoo Jin-su),유권종(Yoo Kwon-jong),한규민(Han Kyu-min),최성진(Choi Sung-jin),김남수(Kim Nam-su) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.4
This paper, laser edge isolation for crystalline silicon solar cell was tested. Existing methods to plasma etching and wet etching to proceed with the separation process, but the material damage aspect ratio greater problems in the aspects of the laser separation process can reduce a lot of time there can be an inline assembly line, this has the advantage. Nd: YV04 laser were used wavelength 532㎚ reduced by Green laser used. In addition, the shorter the wavelength of the laser thermal effect due to the lower load receives a clean surface was obtained.