Cu₂O/Cuコアシェルナノ構造太陽電池のナノワイヤ密度が変換効率に与える影響

抄録

Currently, solar cells aremainlymade fromSi.However, due to the high cost and the limited resources of Si, new materials for solar cells are still needed. It has been proved that Cu₂O solar cells have a high theoretical energy conversion efficiency with a very low cost. However, the actual efficiency of Cu₂O solar battery is much lower than theoretical value. In this research, Cu₂O/Cu core-shell NWs are fabricated on the surface of the solar cell by the AAO template method to increase light receiving area. As a result, we succeed in fabricating Cu₂O/Cu core-shell NWs. The surface area of the solar cell is increased to about 151 times, which improve the solar energy conversion efficiency. And, we also find that the density of NWarrays effects the solar energy conversion efficiency.