Current relaxation in MJ SCs and its influence on IV curve formation in presence of light coupling

3rd International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures (Saint Petersburg OPEN 2016)

Filimonov, E.D.^1 ; Kozhukhovskaia, S.A.^1 ; Emelyanov, V.M.^1 ; Mintairov, M.A.^1 ; Shvarts, M.Z.^1

Ioffe Institute, St. Petersburg

194021, Russia^1

关键词: Fill factor;    High efficient;    I;    V curve;    IV characteristics;    Light couplings;    P-n junction;    Reemission process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/741/1/012091/pdf
DOI  :  10.1088/1742-6596/741/1/012091

来源: IOP

【 摘 要 】

In the work, a procedure for simulating I-V characteristics of multijunction solar cells (MJ SCs) with accounting for the processes of current relaxation determined by the luminescent coupling between separate p-n junctions has been considered. The effect of the mentioned above processes on the I-V characteristic shape was investigated. It has been shown that, in the case of well pronounced reemission processes in high- efficient MJ SCs, in recording their I-V characteristics, variation of fill factor and rise of the open circuit voltage values being registered take place.