The Future in Every Drop: Inkjet-Printed Silver for Next-Gen Solar Cells
Printed Silver Project
A robust, low-temperature manufacturing process was developed that uses metal-organic decomposition (MOD) inks, inkjet printing, and plasma treatment to create highly conductive electrodes on flexible substrates for solar cells and other applications, like OLEDs.
This project combines R&D expertise and industrial needs to develop cost-effective, scalable photovoltaic solutions.
This integrated method opens up new possibilities for rapidly commercializing advanced, lightweight solar modules.
The Solar TAP Logo printed with the ink developed
in the Printed Silver Project. (Copyright HZB)
Project details
Key Achievements
Within the transfer projekt particle-free MOD inks with optimal viscosity and surface tension for industrial inkjet printheads were developed. Utilizing these inks high-resolution electrode patterns with minimal sheet resistance and excellent mechanical stability were demonstrated. A low-temperature plasma treatment that maintains substrate integrity while ensuring high electrical conductivity and a reproducible fabrication process suitable for scaling to large-area flexible PV modules were developed.
Linking Science and Industry
This project bridges R&D and industry by using HZB’s / Humboldt University’s expertise in ink formulation, materials science, and additive manufacturing alongside OrelTech’s specialization in metallurgical inks. INURU’s industrial know-how enables the transfer of laboratory-scale processes to high-throughput production lines. Through close collaboration, the partners develop a cost-effective and energy-efficient method of manufacturing flexible solar cell electrodes, reducing both material waste and production complexities.
Future Outlook
Further research aims to extend the technology to additional metal inks (e.g., copper, gold) for specialized and cost-reduced PV applications and hybrid electronics. Potential follow-up projects include optimizing roll-to-roll production setups and exploring advanced substrate materials, bringing printed solar cell technology toward broader commercial adoption.
The SolarTAP Logo printed with the ink developed in the PrintedSilver Project. (Copyright: HZB)
Added Value
for the Industrial Partner
- Accelerated product development cycle through direct access to R&D.
- Multiple available manufacturing methods that reduce material usage and production costs.
for Research
- Access to industrial grade metal-organic inks
- Validation of inkjet printing and plasma treatment as a reliable, low-temperature electrode fabrication process.
- Opportunities to collaborate across disciplines and develop further innovations in printed electronics.
for Society
- Accelerated product development cycle through direct access to R&D.
- Novel manufacturing methods that reduce material usage and production costs.
- Enhanced competitiveness in the fast-growing flexible electronics and solar market.
Further Information
Contact PI at HGF:
Prof. Dr. Emil List-Kratochvil
Solar TAP
+49 (0)30 2093 82522
emil.list-kratochvil(at)hu-berlin.de
