Studies on transport mechanism in indium tin oxide (ITO)/p-indium phosphide (InP) solar cells prepared by reactive electron beam evaporation and spray pyrolysis techniques

Author

Subrahmanyam, A. ; Vasu, V. ; Manivannan, P.

Author_Institution

Dept. of Phys., Indian Inst. of Technol., Madras, India

Volume

2

fYear

1994

fDate

5-9 Dec 1994

Firstpage

1922

Abstract

The aim of the present work is to study the effect of process induced defects on the transport mechanism in ITO/InP solar cells. A detailed analyses of electrical properties along with XPS studies have been carried out on ITO/p-InP cells prepared by reactive electron beam evaporation and spray pyrolysis techniques. It is observed that thermionic field emission (TFE) in ITO/p-InP junctions prepared by e beam and tunnelling (below 300 K) and recombination at depletion region (above 300 K) in sprayed junctions are the dominant transport mechanisms. The cells prepared by both the techniques conform to semiconductor-insulator-semiconductor model and the interfacial layer comprises of In₂O₃ and InPO₄ as revealed by XPS data

Keywords

III-V semiconductors; X-ray photoelectron spectra; electron beam deposition; electron-hole recombination; indium compounds; pyrolysis; semiconductor-insulator-semiconductor devices; solar cells; spray coating techniques; thermionic emission; ITO-InP; ITO/InP solar cells; ITO/p-InP junctions; In₂O₃; InPO₄; InSnO-InP; XPS; depletion region recombination; e beam; electrical properties; interfacial layer; process induced defects; reactive electron beam evaporation; semiconductor-insulator-semiconductor model; spray pyrolysis; thermionic field emission; transport mechanism; tunnelling; Electron beams; Gold; Indium phosphide; Indium tin oxide; Laboratories; Photovoltaic cells; Spraying; Temperature; Thermionic emission; Zinc;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on

Conference_Location

Waikoloa, HI

Print_ISBN

0-7803-1460-3

Type

conf

DOI

10.1109/WCPEC.1994.520744

Filename

520744