Conversion Efficiency Improvement in GaAs Solar Cells:Conclusions

Conclusions

This analysis presented the light reflection loss about 2 % with the optimum nano- gratings having height of *300 nm and period of *830 nm, which is *28 % lower than that of flat type substrates. The light reflection was calculated using the FDTD method. The simulated results show that the light reflection of a rectangular shaped grating structure is *30 %, however, the light reflection becomes *2 % for a triangular (conical or perfect cone) shaped nano-grating structure, because the refractive index changes gradually in several steps and reduces the light reflection. It is also noticed that for the intermediate structures (such as, trape- zoidal and parabolic shaped nano-gratings), the light reflection is lower than the rectangular shaped nano-grating structure but higher than the triangular shaped nano-grating structure. The simulated results confirm that the reduction of light reflection in solar cell will increase the conversion efficiency of GaAs solar cells. Therefore, it is confirmed that the triangular (or conical) shaped nano-grating structure is an excellent alternative AR coating for the high efficiency GaAs solar cells.

Acknowledgments This research is supported by the Centre for Smart Grid and Sustainable Power Systems, the undergraduate and postgraduate research students who worked with us in this research project, and the Faculty of Science and Engineering, Curtin University, Perth, Australia.

Related posts:

Transient-Suppression Devices:Crowbar Devices and Characteristics of Arcs
Batteries and fuel cells:Fuel cells.
The ac synchronous motor
Fuses and protection relays:Fuses
Measurements and instrumentation:Installation notes
Direct-Current Voltage Testing of Electrical Equipment:Electrical Switchgear and Circuit Breakers
Engine installation:Marine engines
AN INTRODUCTION TO ELECTRICITY GENERATION:A BRIEF POLITICAL DIVERSION
COAL-FIRED POWER PLANTS:EMISSION CONTROL FOR COAL-FIRED POWER PLANTS
HYDROPOWER:GENERATORS
GEOTHERMAL POWER
The Current Situation and Perspectives on the Use of Hydropower for Electricity Generation:France
The Current Situation and Perspectives on the Use of Geothermal Energy for Electricity Generation:Ic...
Conversion Efficiency Improvement in GaAs Solar Cells:Simulation Results and Discussion
Conversion Efficiency Improvement in GaAs Solar Cells:Minimum Light Reflection for Different Nano-gr...

Leave a comment

Your email address will not be published. Required fields are marked *