Electric Power of Solar Cells from Shadows to Indoors

Yeon Hyang Sim, Min Ju Yun, Luthfan Fauzan, Hyekyoung Choi, Dong Yoon Lee, Seung I. Cha Korea Electrotechnology Research Institute, Changwon, --, Korea

Dim light, such as indoor light or shadows, is a harsh condition for solar cells for power generation. Therefore solar cells should collect all the light around the solar cells as much as possible, and for this purpose, we focused on the differences from sunlight; diffused and scattered light. In this situation, the power output depends on the angle of incident light, which causes differences in reflectance. In addition, artificial light has a different light spectrum than sunlight and can affect the energy conversion of solar cells. In this paper, we present a prediction model under artificial light and demonstrate its application using wireless sensor communication.