Analysis of emitter photocurrent collection efficiency in short emitter solar cells

Author

Hitchcock, C. ; Borrego, J.M.

Author_Institution

Dept. of Electr. Comput. & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA

fYear

1993

fDate

10-14 May 1993

Firstpage

670

Lastpage

674

Abstract

In this paper the authors consider the collection of photocarriers in solar cells with shallow emitters. The problem is analyzed using the Boltzmann transport equation to describe the motion of carriers and is solved for the case of elastic collisions. The results indicate that the drift-diffusion theory with infinite recombination velocity assumed at the surface is a poor approximation whereas with a realistic finite value for surface recombination velocity the solution agrees well with the Boltzmann solution

Keywords

Boltzmann equation; diffusion in solids; electron-hole recombination; minority carriers; photoconductivity; semiconductor device models; solar cells; Boltzmann transport equation; carriers motion; drift-diffusion theory; elastic collisions; emitter photocurrent collection efficiency; infinite recombination velocity; photocarriers; short emitter solar cells; surface recombination velocity; Boltzmann equation; Boundary conditions; Electron emission; Motion analysis; Particle scattering; Photoconductivity; Photonic band gap; Photovoltaic cells; Radiative recombination; Spontaneous emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference, 1993., Conference Record of the Twenty Third IEEE

Conference_Location

Louisville, KY

Print_ISBN

0-7803-1220-1

Type

conf

DOI

10.1109/PVSC.1993.347012

Filename

347012