LIQUID MIXTURE FOR FORMING AN ABSORPTION LAYER
A ternary solvent system of alcohols addresses issues in inkjet printing of solar cell absorption layers by ensuring homogeneous film formation and preventing nozzle clogging, enhancing printing efficiency and reducing environmental and health risks.
DE102025134705B3Active Publication Date: 2026-05-28HANWHA Q CELLS GMBH
Patent Information
- Application Number
- DE102025134705
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2026-05-28
- Estimated Expiration
- 2045-08-29
AI Technical Summary
Technical Problem
Conventional inkjet printing of absorption layers for solar cells faces issues such as inhomogeneous film formation, nozzle clogging, use of toxic solvents, low solubility, and poor film-forming properties, leading to uneven coverage and printing difficulties.
Method used
A liquid mixture comprising a ternary solvent system of miscible alcohols, tailored to optimize viscosity, polarity, and volatility, is used for inkjet printing, forming a stable solution with organic precursor materials, preventing printhead clogging and enabling rapid drying.
Benefits of technology
The solution ensures homogeneous film deposition, prevents nozzle clogging, reduces health and environmental risks, and enhances printing efficiency with high throughput and quality.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 00000000_0000_ABST
Abstract
A liquid mixture (100) for forming an absorption layer (210) on at least one substrate (200) for a solar cell (400) is disclosed. The liquid mixture (100) comprises: at least one polar solvent mixture; and an organic precursor material dissolved in the polar solvent mixture; wherein the polar solvent mixture comprises various alcohols, including at least a first alcohol, a second alcohol, and a third alcohol; wherein the liquid mixture (100) is inkjet printable for forming the absorption layer (210) on the substrate (200) by means of an inkjet printer (300).
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Citation Information
Patent Citations
Ink-jet printing ink, display panel and preparation method thereof
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Composition for printing electronic device and use thereof in electronic device
WO2017080317A1
CN000114163873A