Photovoltaic efficiency enhancement through thermal up-conversion
Nicholas J. Ekins‐DaukesExperimental Solid State Physics, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BW, United KingdomIan BallardExperimental Solid State Physics, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BW, United KingdomC. CalderExperimental Solid State Physics, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BW, United KingdomK.W.J. BarnhamExperimental Solid State Physics, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BW, United KingdomG. HillEPSRC III-V Facility, Department of Electronic Engineering, University of Sheffield, Sheffield S1 3JD, United KingdomJ.S. RobertsEPSRC III-V Facility, Department of Electronic Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
2003en
ABI
Аннотация
Anti-Stokes emission is observed experimentally from a series of quantum well p–i–n structures and is attributed to a quasithermal equilibrium being established between the quantum well and barrier material. A device is described whereby the anti-Stokes emission from a quantum well p–i–n structure can be used to increase the short-circuit current of a second conventional solar cell, essentially coupling sub-band-gap sunlight to the ambient thermal reservoir. For a GaAs p/n cell at 300 K, this effect is calculated to raise the one-sun power conversion efficiency from 30.0% to 31.3%. Greater efficiency increases are possible if a thermal gradient is established across the structure.
Ҳали таржима қилинмаган
Идентификаторлар
Иқтибослар ва манбалар
2 та иқтибос0 та фойдаланилган манба