skip to main content

Title: Direct-Write Contacts for Solar Cells

We report on our project to develop inkjet printable contacts for solar cells. Ag, Cu, and Ni metallizations were inkjet printed with near vacuum deposition quality. Thick, highly conducting lines of Ag and Cu demonstrating good adhesion to glass, Si, and PCB have been printed at 100-200 C in air and N2, respectively. Ag grids were inkjet-printed on Si solar cells and fired through silicon nitride AR layer at 850 C resulting in 8% cells. Next-generation multicomponent inks (including etching agents) have also been developed with improved fire-through contacts leading to higher cell efficiencies. The approach developed can be easily extended to other conductors such as Pt, Pd, and Au, etc. In addition, PEDOT-PSS polymer-based conductors were inkjet-printed with the conductivity as good or better than those of polymer-based conductors.
Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
860930
Report Number(s):
NREL/CP-520-37080
TRN: US200524%%375
DOE Contract Number:
AC36-99-GO10337
Resource Type:
Conference
Resource Relation:
Related Information: Presented at the 2004 DOE Solar Energy Technologies Program Review Meeting, 25-28 October 2004, Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102005-2067; NREL/CD-520-37140)
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; ADHESION; AIR; DEPOSITION; ETCHING; GLASS; SILICON NITRIDES; SOLAR CELLS; SOLAR ENERGY PV; INKJET PRINTABLE CONTACTS; SOLAR CELLS; POLYMER-BASED CONDUCTORS; MULTICOMPONENT; MULTIFUNCTIONAL; Solar Energy - Photovoltaics