CIGS Films via Nanoparticle Spray Deposition: Attempts at Densifying a Porous Precursor

Douglas L. Schulz, Calvin J. Curtis, Alan Cram, Jeffrey L. Alleman, Alice Mason, Richard J. Matson, John D. Perkins, David S. Ginley

Research output: Contribution to conferencePaperpeer-review

8 Scopus Citations

Abstract

This report summarizes our recent efforts to produce large-grained CIGS materials from porous nanoparticle precursor films. In our approach, a nanoparticle colloid is first prepared via low-temperature solution synthesis. Next, a thin precursor film is prepared by spray deposition of this colloid onto a heated substrate. Post-processing of these precursors is performed to induce phase formation and grain growth. Various colloids have been sprayed onto substrates such as molybdenum/glass and CdS/SnO2/glass. Post-processing treatments under controlled gas ambients have been performed according to both standard and rapid-thermal annealing (RTA) approaches. Morphology, phase formation, and chemical composition of these nanoparticle-derived films have been characterized using SEM, XRD, Raman, and AES. Although the majority of the approaches employed did not produce large-grained materials, CIGS colloid sprayed onto CdS/SnO2/glass substrates heated at 225 °C produced films with a dense morphology as-deposited.

Original languageAmerican English
Pages483-486
Number of pages4
DOIs
StatePublished - 1997
EventProceedings of the 1997 IEEE 26th Photovoltaic Specialists Conference - Anaheim, CA, USA
Duration: 29 Sep 19973 Oct 1997

Conference

ConferenceProceedings of the 1997 IEEE 26th Photovoltaic Specialists Conference
CityAnaheim, CA, USA
Period29/09/973/10/97

Bibliographical note

For preprint version, including full text online document, see NREL/CP-520-22959

NREL Publication Number

  • NREL/CP-520-24972

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