Large area, screen printed silicon solar cells with selective emitter made by laser overdoping and RTA spin-on glasses

U. Besi-Vetrella, L. Pirozzi, E. Salza, G. Ginocchietti, F. Ferrazza, L. Ventura, A. Slaoui, J.C. Muller

Research output: Contribution to conferencePaper

19 Citations (Scopus)

Abstract

In this paper we describe our work on a new solar cells fabrication process, based on the use of Rapid Thermal Diffusion (RTD) from spin-on techniques, laser assisted treatments to get selective emitter structures, and screen-printing. The homogeneous lightly doped emitter is first made by rapid thermal diffusion from a P-doped Spin-On Glass (SOG) film. Laser overdoping of contact regions follows, to form the selective emitter structure, by writing the grid pattern using a laser beam. Finally, screen-printing is used to get the contacts; proper solutions have been developed for optical realignment to laser pattern, with a resolution of about 10 microns. We have first prepared several batches of small area solar cells, made by using these processes separately, with the aim to study the influence of the main laser and dopant parameters on cell performances. Our further step has been to use all the processes together. Large area devices preparation is in progress.
Original languageEnglish
DOIs
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 IEEE 26th Photovoltaic Specialists Conference - , Unknown
Duration: 1 Jan 1997 → …

Conference

ConferenceProceedings of the 1997 IEEE 26th Photovoltaic Specialists Conference
CountryUnknown
Period1/1/97 → …

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

Besi-Vetrella, U., Pirozzi, L., Salza, E., Ginocchietti, G., Ferrazza, F., Ventura, L., ... Muller, J. C. (1997). Large area, screen printed silicon solar cells with selective emitter made by laser overdoping and RTA spin-on glasses. Paper presented at Proceedings of the 1997 IEEE 26th Photovoltaic Specialists Conference, Unknown. https://doi.org/10.1109/PVSC.1997.654047