Theoretical investigation of nano-muffin and inverted nano-pyramid surface textures for energy harvesting in very thin c-Si solar cells

Wang P, Azimi S, Breese MB, Peters M (2014)

Publication Type: Conference contribution

Publication year: 2014

Journal

Materials Research Society Symposium - Proceedings Materials Research Society

Publisher: Materials Research Society

Book Volume: 1638

Conference Proceedings Title: Materials Research Society Symposium Proceedings

Event location: USA

DOI: 10.1557/opl.2014.244

Abstract

Nano-scale surface textures have been developed as photon management schemes for crystalline silicon (c-Si) solar cells with very thin absorber layers to compensate for light absorption losses. This paper investigates the optical properties of periodic nano-muffin and inverted nano-pyramid surface textures, simulated using the Rigorous Coupled Wave Analysis (RCWA) method. Obtained results are compared against those of a planar silicon film with equal thickness. The simulation results demonstrate that nano-muffin and inverted nano-pyramid surface textures with a small aspect ratio are able to achieve substantial absorption enhancement over a broadband wavelength range. Further investigation indicates that nano-muffin surface textures could trap light by concentrating light within a volume close to the texture (micro-lensing effect). With such nano-scale textures, light trapping similar to that of much larger scale textures can be achieved. Copyright © 2014 Materials Research Society.

Involved external institutions

Nanyang Technological University (NTU) SG Singapore (SG) National University of Singapore (NUS) SG Singapore (SG)

How to cite

APA:

Wang, P., Azimi, S., Breese, M.B., & Peters, M. (2014). Theoretical investigation of nano-muffin and inverted nano-pyramid surface textures for energy harvesting in very thin c-Si solar cells. In Materials Research Society Symposium Proceedings. USA: Materials Research Society.

MLA:

Wang, Puqun, et al. "Theoretical investigation of nano-muffin and inverted nano-pyramid surface textures for energy harvesting in very thin c-Si solar cells." Proceedings of the 2013 MRS Fall Meeting, USA Materials Research Society, 2014.

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