Invention Publication
- Patent Title: Indirect Liftoff Mechanism for High-Throughput, Single-Source Laser Scribing for Perovskite Solar Modules
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Application No.: US18244767Application Date: 2023-09-11
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Publication No.: US20240088314A1Publication Date: 2024-03-14
- Inventor: Austin FLICK , Reinhold H. DAUSKARDT
- Applicant: The Board of Trustees of the Leland Stanford Junior University
- Applicant Address: US CA Stanford
- Assignee: The Board of Trustees of the Leland Stanford Junior University
- Current Assignee: The Board of Trustees of the Leland Stanford Junior University
- Current Assignee Address: US CA Stanford
- Main IPC: H01L31/0463
- IPC: H01L31/0463 ; B23K26/0622 ; B23K26/40 ; H01L31/0224 ; H01L31/05

Abstract:
A vertically selective liftoff scribing process is provided. One application is the fabrication of solar cells and solar modules. The basis of this technology is absorption of an indirectly focused laser beam in the front electrode material of the device, which enables removal of this layer (e.g., a P1 scribe) or removal of layers above the front electrode while leaving the front electrode intact (e.g., a P2 or P3 scribe). The laser fluence can be selected to choose between these alternatives, and further fine tuning is possible depending on details of the device structure.
Public/Granted literature
- US12237432B2 Indirect liftoff mechanism for high-throughput, single-source laser scribing for perovskite solar modules Public/Granted day:2025-02-25
Information query
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