Pustaka Ilmiah Universitas Padjadjaran

Abstrak

Converting Solar Energy to Electricity Energy using Diffractive and Selective Crystalline Photonics

currently, detrital feasibility of product and its distribution services has more raised. Converting solar energy to electricity energy by use of photovoltaic cell (PV) is key element to get energy supply for our society profitable in the future. By using the rule of photonics is potentially promising to produce PV solar energy of semiconductor material that captures sunlight and changes its energy become BC electrical current. This technology gives advantage by resulting and storing this energy in PV cell structured that comes from a broadband range of sunlight spectral to improve its performance system such as to optimize the PV solar cell efficiency by using selectivity spectral crystalline photonic properties. We required to collect and store this sun energy that could be utilized any time and whenever this energy needed. Researcher at PV’s field is brought up on problem how to increase this conversion process efficiency with cost as cheap as possible Selectivity spectral is the only methods to guide partly solar spectrum that is sorted for specific solar cell. It accords absorption of spectrum particular part by solar cell. Selectivity spectral can be reached by fluorescent concentrator and in photonics structured. Another selectivity spectral technique is angular confinement of the light trapping inside solar cell. On solar cell type with light propagation direction is always near normal direction. Then with change of normal light will give positive effect on internal path length, also ensues to increase absorption into solar cell. By using diffraction grating will add some diffraction order that influences to increase light path length. First, this causes to increase its absorption more than 74%. Second, it causes to raise generating on electricity charging and solar cell efficiency varied to 85%.