Reducing Losses in Perovskite Large Area Solar Technology: Laser Design Optimization for Highly Efficient Modules and Minipanels

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

The perovskite solar era has demonstrated 25.5% efficiency in only 10 years of research, reaching the performance levels of other photovoltaics technologies such as Si and GaAs, showing potentially low-cost manufacturing and process versatility. However, these results are achieved only on small area cells, with an active area equal or lower to 0.1 cm 2. The upscaling development of perovskite solar technology requires the use of additional processes to reduce losses encountered for large areas; for this reason, laser processing becomes necessary to design connected cells into modules. In this work, cell-to-module losses in perovskite solar modules are reduced by optimizing the laser design, establishing a relationship between geometrical fill factor, cell area width, and P1–P2–P3 laser parameters. Upscaling the process from 2.5 × 2.5 to 10 × 10 cm 2 an efficiency of 18.71% and 17.79% is achieved on active area of 2.25 and 48 cm 2 respectively, with only 5% relative losses when scaling from to minimodule to module size. A minipanel is fabricated on 20 × 20 cm 2, showing 11.9% stabilized efficiency and 2.3 W on an active area of 192 cm 2, among the highest reported in literature so far at this size.

Details

Original languageEnglish
Article number2103420
Pages (from-to)1-12
Number of pages12
JournalAdvanced energy materials
Volume12
Issue number12
Publication statusPublished - 5 Feb 2022
Peer-reviewedYes

External IDs

Scopus 85124453529
unpaywall 10.1002/aenm.202103420
Mendeley e83d8d2d-5bd9-39e3-8815-f6f8e1ceb445

Keywords

DFG Classification of Subject Areas according to Review Boards

Subject groups, research areas, subject areas according to Destatis

Sustainable Development Goals

Keywords

  • P1–P2–P3 processes, geometrical fill factor, laser and design optimization, laser parameters, perovskite solar modules, perovskite solar panels, upscaling