Light trapping enhancement via structure design

• DOI: 10.1142/s021797922050040x
• Publication Date: 2020-02-28T16:37:49Z
• Authors: Minyu Bai; Huan Liu; Fei Xie; Jijie Zhao; Weiguo Liu; Huikai Xie
• Keywords: Reflection; Pillar; Ray; Quantum Efficiency

Light trapping is of great importance in many applications including photodetectors and solar cells. Silicon-based structures hybrid devices were designed studied to reduce reflection, thus enhance light trapping. The typical pillar array was analyzed concerning the radius distance between pillars first. result showed that reflection could be reduced from range 0.35–0.45 0–0.3 with wavelength 400 700 nm. What should noted optimal size for changed when varied. Furthermore, structure increase results random quantum dots (QDs) covering coated two-dimensional (2D) material an effective way confine under 0.1, promoting