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Laser-based patterning for monolithic interconnection of thin-film tandem solar modules
Thin-film tandem solar cells using perovskite and Copper Indium Gallium Selenide (CIGS) photovoltaic ab-sorbers have shown excellent efficiencies on small area cells (< 1 cm2), and show potential to surpass single-junction efficiency limits. The transition from cell to module level of these exciting technologies requires mono-lithic interconnection, were small cell strips are connected in series through patterning approach (see Figure). At Empa, we have utilized laser-based patterning to realize CIGS and perovskite single-junction mini-modules. We want to develop similar patterning approach for high-efficiency thin-film tandem architecture with perov-skite-CIS material system.
Keywords: Tandem solar cell
Laser patterning
Solar Modules
Perovskite
CIGSe
This project aims to investigate possible interconnection schemes and optimize laser-patterning process to realize monolithic interconnection for perovskite-CIS 2T tandem module.
This project aims to investigate possible interconnection schemes and optimize laser-patterning process to realize monolithic interconnection for perovskite-CIS 2T tandem module.
During the course of project, the student will:
• Explore advanced thin-film photovoltaic perovskite, CIS and tandem solar cell technologies.
• Understand laser ablation mechanism on perovskite and CIS material systems.
• Optimize laser patterns for perovskite and CIS solar modules with optoelectronic characterizations.
• Building on the acquired expertise to develop a process for monolithic 2 terminal perovskite-CIS tan-dem modules. We are looking for students in the field of Physics/Process/Material/Electrical engi-neering willing to work in a motivated, multi-disciplinary team performing cutting edge science in the field of thin film photovoltaics. The candidate is dedicated to analytical instrumental based work with a strong focus to applied research.
During the course of project, the student will: • Explore advanced thin-film photovoltaic perovskite, CIS and tandem solar cell technologies. • Understand laser ablation mechanism on perovskite and CIS material systems. • Optimize laser patterns for perovskite and CIS solar modules with optoelectronic characterizations. • Building on the acquired expertise to develop a process for monolithic 2 terminal perovskite-CIS tan-dem modules. We are looking for students in the field of Physics/Process/Material/Electrical engi-neering willing to work in a motivated, multi-disciplinary team performing cutting edge science in the field of thin film photovoltaics. The candidate is dedicated to analytical instrumental based work with a strong focus to applied research.