1. Principles of Solar cell
태양전지 재료별 분류
Fig. 1-1 재료별 태양전지 분류
1) 실리콘계 태양전지
결정 실리콘 태양전지는 1954년 벨 연구소의 피어슨 등이 발명해 전력용으로 처음 실용화된 태양전지이다. 가장 긴 사용실적을 가진 태양전지이며 주택용 태양광발전 시스템이나 인공위성용 전원 등
1. 태양광 발전의 특징
태양광 산업은 무한정 무공해의 자원을 활용하여 전기를 생성하는 신재생 에너지원으로 1990년대 이후 기후변화협약에 따른 환경문제가 범세계적으로 심각하게 대두됨에 따른 삶의 질을 향상시킬 수 있는 환경 친화적 에너지 기술로서, 태양광을 받아 전기를 발생하는 태양전
semiconductor, IC, nuclear fusion reactor and etcetera. Recently, high vacuum is especially used in aerospace industry and process of solar cell.[1]
Ultra High Vacuum
Definition.
Ultra high vacuum region is defined as the pressure lower than 10 to the minus 8.
Generally, there are three steps to make Ultra high vacuum (UHV), Roughing pump, High vacuum pump and Ultra high vacuum pump. Aft
compoundsemiconductor CuInS2 thin films with non-stoichiometry composition. CuInS2 thin film was well made at the heat treatment 200[℃] of SLG/Cu/In/S stacked elemental layer which was prepared by thermal evaporator, and chemical composition of the thin film was analyzed nearly as the proportion of 1 : 1 : 2.
Physical properties of the thin film were investigated at various fabrication condit
High optical transmittance
Wide optical band gap
High electrical conductivity
Low cost
Non-toxicity
Good stability
Requirement of low temperature
Why is Wide band gap energy good?
It can be a very effective optoelectronic devices
There are many III-V and II-VI compoundsemiconductors with high bandgaps. The only high bandgap materials in…
group IV are diamond