Author(s):
1. Yiannis Tripanagnostopoulos, Physics Dept, University of Patras, Patra 26504, Greece
2. Eleni Karantagli, Dept of Materials Science, University of Patras, Patra 26504, Greece
3. Mihail Sigalas, Dept of Materials Science, University of Patras, Patra 26504, Greece

Abstract:
A theoretical study has been performed, aiming to achieve PV cell improvements in optical performance for high solar radiation rays incidence angles. The Rigorous Coupled-Wave Analysis (RCWA) methodology was used, by which the reflection, transmission and absorption of light incident at any angle on a pc-Si solar cell can be calculated. The method divides the structure into layers parallel to the surface and uses a Fourier decomposition of the possibly complex refractive index of each layer. It can treat grating either on the SiN or the Si and it can also treat nanoparticles at the top surface of pc-Si solar cell. One of the advances of RCWA is that it can directly treat the layers of structures without additional computational burden. In the present study, gratings in the SiN and/or Si PV surface are examined, to optimize them minimizing optical reflection at high incident angles. The effect of slope and azimuth angles of incident solar rays to electricity output was studied, to determine the limits of effective PV module orientation regarding electrical output.

Key words:
PV cell, PV performance, solar radiation, high incidence, angles of solar rays,PV cell,PV performance,solar radiation,high incidence,angles of solar rays

Thematic field:
SYMPOSIUM A - Science of matter, condensed matter and physics of solid states

Date of abstract submission:
11.06.2015.

Conference:
Contemporary Materials 2015 - Savremeni Materijali

Abstract