You are here

Low-cost and Flexible Transparent Electrodes Based on Ag–ZTOF (Zn–Sn–O–F) Amorphous Composites Through Ink-jet Printing

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0018834
Agency Tracking Number: 237214
Amount: $150,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: 09b
Solicitation Number: DE-FOA-0001771
Solicitation Year: 2018
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-07-02
Award End Date (Contract End Date): 2019-04-01
Small Business Information
4601 Indiana Street
Golden, CO 80403-1848
United States
DUNS: 048742175
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Thomas Kodenkandath
 (303) 279-4501
Business Contact
 Nick Hazen
Phone: (303) 279-4501
Research Institution
 National Renewable Energy Laboratory
 David Ginley
15013 Denver West Parkway
Golden, CO 80401-3305
United States

 (303) 384-6473
 Federally Funded R&D Center (FFRDC)

Sn-doped In2O3 (ITO) is the industry standard and most widely used transparent conducting electrode (TCE) because of its good electrical and optical properties. However, ITO has a number of disadvantages: ITO is not a suitable TCE for next-generation, high-efficiency, flexible OLEDs, because of its inappropriate work function, difficulty in creating desired patterns, low stability, delaminantion due to fracturing on flexible substrates, high cost, and the need to process at high temperatures, which limits the high speed manufacture of integrated ITO substrates. Therefore, there is a critical need to develop low-cost TCE as an alternative to ITO for next-generation OLEDs. The US Department of Energy’s (DOE) TCE 2020 cost-target is <$8/m2, with a sheet resistance of <10 ohms/sq, and a transmittance of >90% at 550 nm. Currently, ITO used as the conventional TCE costs >$20/m2. Hazen, in collaboration with NREL, proposes to demonstrate low-cost (indium free) TCE based on silver metal–zinc tin oxyfluoride (Ag–ZTOF) amorphous composites using novel metal–organic (MO) precursors through inkjet printing (IJP) and low-temperature processing. IJP is a contactless, direct patterning process ideal for depositing TCE as a roll-to-roll (R2R) process. Our proposal combines innovations in materials, chemistry, and deposition methods to develop low-cost TCE applicable to many advanced technologies. The Hazen–NREL team will perform the following tasks: (1) Develop and demonstrate Metal-Organic (MO) precursors for Ag–ZTOF composite films; (2) Demonstrate spin-coated Ag–ZTOF composite films processed at <325°C with a sheet of resistance of <10 ohms/sq, and a transmittance of >90% at 550 nm; and (3) Demonstrate IJP of Ag–ZTOF composite films on flexible substrates with the same electrical and optical properties, and perform cost–modeling to show viabilityfor<$10/m2 production.

* Information listed above is at the time of submission. *

US Flag An Official Website of the United States Government