Multilayered structuring of thin-film PV modules by ultrafast laser ablation

研究成果: 雜誌貢獻文章

14 引文 (Scopus)

摘要

Due to the growth of thin-film solar photovoltaic (PV) market for renewable energy sources, the development of versatile technique for scribing surface patterns with new record efficiency is crucial. This study presents an ultrafast-laser process for noncontact and chemical-free scribing of thin-film layers in CuInxGa(1- x )Se2 (CIGS)-based PV modules. The proposed ultrafast laser scribing process for single- and multiple-pass patterning was performed using an infrared laser system comprising a femtosecond laser source, galvano-mirror scanner, and high-precision motor driven stage. The interaction between laser beam and three thin films in CIGS-based PV modules was determined by investigating potential film-removal mechanisms, such as geometrical, thermal, mechanical, and optical properties. Well-defined grooves were successfully obtained on thin-film layers by applying pulse energies near the ablation threshold. The experimental results and numerical calculations show that the laser-material interactions indicate that the proposed surface-pattern technique is precise. The energy transfer between the laser beam and thin-film device was affected by introducing an electron-photon coupling variable. The study results show the surface-pattern characteristics of applying an ultrafast laser to thin-film PV modules under controlled process conditions.

原文英語
頁(從 - 到)41-47
頁數7
期刊Microelectronic Engineering
143
DOIs
出版狀態已發佈 - 2015 八月 1

指紋

Ultrafast lasers
Laser ablation
laser ablation
modules
Thin films
scoring
thin films
Laser beams
lasers
Thin film devices
laser beams
Infrared lasers
Ablation
Ultrashort pulses
renewable energy
laser materials
Energy transfer
energy sources
Mirrors
grooves

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

引用此文

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abstract = "Due to the growth of thin-film solar photovoltaic (PV) market for renewable energy sources, the development of versatile technique for scribing surface patterns with new record efficiency is crucial. This study presents an ultrafast-laser process for noncontact and chemical-free scribing of thin-film layers in CuInxGa(1- x )Se2 (CIGS)-based PV modules. The proposed ultrafast laser scribing process for single- and multiple-pass patterning was performed using an infrared laser system comprising a femtosecond laser source, galvano-mirror scanner, and high-precision motor driven stage. The interaction between laser beam and three thin films in CIGS-based PV modules was determined by investigating potential film-removal mechanisms, such as geometrical, thermal, mechanical, and optical properties. Well-defined grooves were successfully obtained on thin-film layers by applying pulse energies near the ablation threshold. The experimental results and numerical calculations show that the laser-material interactions indicate that the proposed surface-pattern technique is precise. The energy transfer between the laser beam and thin-film device was affected by introducing an electron-photon coupling variable. The study results show the surface-pattern characteristics of applying an ultrafast laser to thin-film PV modules under controlled process conditions.",
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KW - Ultra-short laser

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