English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Silicon heterojunction (SHJ) solar cells with an interdigitated back-contact(IBC) exhibit high conversion efficiencies of up to 25.6%. However, due to thesophisticated back-side pattern of the doped layers and electrode structuremany processing and patterning steps are required. A simplification of thepatterning steps could ideally increase the yield and/or lower the productioncosts. We propose a patterning approach for IBC SHJ solar cells free of anyphoto-lithography with the help of laser-induced forward transfer (LIFT) of theindividual layer stacks to create the required back-contact pattern. Theconcept has the potential to lower the number of processing steps significantlywhile at the same time giving a large degree of freedom in the processingconditions optimization of emitter and BSF since deposition of theintrinsic/doped layers and processing of the wafer are all independent fromeach other.

A concept for Lithography-free patterning of silicon heterojunction back-contacted solar cells by laser processing