Ⅰ. 개요
기존의 경제에서 진입장벽, 경쟁력 요인이었던 유통/판매망의 중요성이 인터넷과 전자상거래과 더불어 상대적으로 감소되면서 유통/판매망 구축을 위한 막대한 고정비용이 절감될 수 있다. 이에 따라, 시장독점 가능성이 작아지고 따라서 진입장벽도 낮아지게 된다. 그러나 기술적인 진입
Single junction structure
Poor efficiency(<30%)
Conversion rate ~ # of photon
Multi-layer structure
high efficiency(2times of 1st type)
Conversion rate ~ # of photon
Use photon energy
Very high(1hv → 2e)
Theoretical level
Dye electrons are excited by solar energy absorption
They are injected into the conduction band of TiO2
Get to counter-electrode (cathode) through the exter
Playtex tampons is more round and softer; furthermore, its products are coated with pearls. When customers therefore use Playtex tampon products, they can inject it more easily than tempo.
As for the price, the price range of Playtex is higher than tampon products. The price of Tempo per unit is 350 won: The price of Playtex per unit is 435 won. This mean Playtex are 1.4 times more expensive th
V 3.30 (ASCII)
This is the Semi-Official ASCII Version of the Lion King Script,
originally cast into textual form by the legendary Phil "Leopold Stokowski"
Pollard, of JMU, and re-edited several times into the form you see here by
Brian Tiemann (FDCMuck Timon) of Caltech. This is your guarantee of
quality, that what you see here on your screen is as close to what was
presented in the movie as is
Purpose
If you refer to a book as an introduction to a particular subject, you mean that it explains the basic facts about that subject.
Organic Solar cell
태양에너지를 전기에너지로 변환시키는 유기태양전지의 원리 및 특성 이해.
유기태양전지의 효율성 향상 방안 탐색
Direction of Idea
Replacing the electrode by using multi-layer matirials.