Control of ablation depth and surface structure in P3 scribing of thin-film solar cells by a picosecond laser

Xin Zhao, Yunfeng Cao, Qiong Nian, Gary Cheng, Yung C. Shin

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

In this paper, precise P3 scribing of thin-film solar cells (AZO/CIGS/Mo/Glass) via a picosecond laser is investigated. A parametric study is carried out for P3 scribing to study the effects of laser fluence and overlap ratio on ablation depth and slot quality, supported by the numerical prediction using a two-temperature model. The optimum scribing conditions are determined, and the potential processing speed is increased. Laser induced periodic surface structures are also presented after the scribing process, which can potentially enhance the absorption of the cell surface and consequently increase the cell efficiency.

Original languageEnglish (US)
Article number031007
JournalJournal of Micro and Nano-Manufacturing
Volume2
Issue number3
DOIs
StatePublished - Sep 1 2014
Externally publishedYes

ASJC Scopus subject areas

  • Process Chemistry and Technology
  • Industrial and Manufacturing Engineering
  • Mechanics of Materials

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