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Up and Down Conversion of Photons with modified Perturb and Observe MPPT technique for Efficient Solar Energy Generation
- Source :
- Energy Procedia. 117:786-793
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Despite many decades of research on the photovoltaic cells, still it is a great struggle to get efficiencies more than 25%. Transmission of low energy photons & thermalization of high energy photons are the two losses which form the backbone of the Shockley – Queisser limit. In this paper, a way to diminish both these losses along with modified Perturb and Observe MPPT method, which will boost the overall efficiency up to 35% is demonstrated. At first Singlet Exciton Fission is utilized as a down converting process for photons with energy greater than silicon bandgap of 1.12 eV in which a single high energy photon fissions into two photons of half the energy. Then, Triplet-Triplet Annihilation (TTA) is utilized as an up converting process for photons with energy less than 1.12 eV & wavelength more than 1100 nm in which two low-energy photons get converted into a single high-energy photon of twice the energy and finally Modified Perturb & Observe MPPT method with ZVS technique is used to reduce the DC to DC converter losses.
- Subjects :
- 010302 applied physics
Physics
Photon
Annihilation
business.industry
Photovoltaic system
Physics::Optics
02 engineering and technology
021001 nanoscience & nanotechnology
Solar energy
01 natural sciences
Maximum power point tracking
Thermalisation
0103 physical sciences
Optoelectronics
Quantum efficiency
0210 nano-technology
business
Energy (signal processing)
Subjects
Details
- ISSN :
- 18766102
- Volume :
- 117
- Database :
- OpenAIRE
- Journal :
- Energy Procedia
- Accession number :
- edsair.doi...........a1e5822336fd34879bfa12784ba3fef4