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 language | American English |
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Pages | 483-486 |
Number of pages | 4 |
DOIs | |
State | Published - 1997 |
Event | Proceedings of the 1997 IEEE 26th Photovoltaic Specialists Conference - Anaheim, CA, USA Duration: 29 Sep 1997 → 3 Oct 1997 |
Conference
Conference | Proceedings of the 1997 IEEE 26th Photovoltaic Specialists Conference |
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City | Anaheim, CA, USA |
Period | 29/09/97 → 3/10/97 |
Bibliographical note
For preprint version, including full text online document, see NREL/CP-520-22959NREL Publication Number
- NREL/CP-520-24972