Mismatched front and back gratings for optimum light trapping in ultra-thin crystalline silicon solar cells
| Autor: | Matthew S. Branham, Selcuk Yerci, Gang Chen, Yi Huang, Svetlana V. Boriskina, Jonathan K. Tong, Wei-Chun Hsu |
|---|---|
| Přispěvatelé: | Massachusetts Institute of Technology. Department of Mechanical Engineering, Chen, Gang, Hsu, Wei-Chun, Tong, Jonathan K., Branham, Matthew Sanders, Huang, Yi, Yerci, Selcuk, Boriskina, Svetlana V |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Photovoltaic system Front (oceanography) 02 engineering and technology Trapping Grating 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Optics law 0103 physical sciences Solar cell Optoelectronics Direct and indirect band gaps Crystalline silicon Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology business |
| Zdroj: | Prof. Gang Chen |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2016.04.055 |
| Popis: | The implementation of a front and back grating in ultra-thin photovoltaic cells is a promising approach towards improving light trapping. A simple design rule was developed using the least common multiple (LCM) of the front and back grating periods. From this design rule, several optimal period combinations can be found, providing greater design flexibility for absorbers of indirect band gap materials. Using numerical simulations, the photo-generated current (Jph) for a 10-μm-thick crystalline silicon absorber was predicted to be as high as 38 mA/cm2, which is 11.74% higher than that of a single front grating (Jph=34 mA/cm2). United States. Department of Energy. Office of Science. Basic Energy Sciences (Award No. DE-SC0001299/DE-FG02-09ER46577 for fundamental Research in Light Management) United States. Department of Energy (Sunshot Initiative, Award No. DE-EE0005320 for high-efficiency thin-film c-Si PV cell design) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect