| 摘要 |
A solar cell includes a backside reflection layer containing a high-k dielectrics. The backside reflection layer includes a reflection film containing HfO<SUB>2</SUB> or ZrO<SUB>2</SUB> and a backside passivation layer containing of HfSixOy, ZrSixOy or SiO<SUB>2</SUB>, which are formed on a rear side of a substrate onto which solar rays are input. Thus, the solar cell exhibits excellent optical trapping for solar rays and low recombination rate of carriers on the rear side. Also, since the reflection film and the backside passivation layer have excellent thermal stability, it is possible to form electrodes by applying various processes such as thermal treatment. |
