Epitaxial Cu2ZnSnS4 Thin Film on Si (111) 4 degree Substrate

Ning Song, Matthew Young, Fangyang Liu, Pete Erslev, Samual Wilson, Steven P. Harvey, Glenn Teeter, Yidan Huang, Xiaojing Hao, Martin A. Green

Research output: Contribution to journalArticlepeer-review

38 Scopus Citations

Abstract

To explore the possibility of Cu2ZnSnS4 (CZTS)/Si based tandem solar cells, the heteroepitaxy of tetragonal Cu2ZnSnS4 thin films on single crystalline cubic Si (111) wafers with 4° miscut is obtained by molecular beam epitaxy. The X-ray θ-2θ scan and selected area diffraction patterns of the CZTS thin films and Si substrates, and the high resolution transmission electron microscopy image of the CZTS/Si interface region demonstrate that the CZTS thin films are epitaxially grown on the Si substrates. A CZTS/Si P-N junction is formed and shows photovoltaic responses, indicating the promising application of epitaxial CZTS thin films on Si.

Original languageAmerican English
Article number252102
Number of pages5
JournalApplied Physics Letters
Volume106
Issue number25
DOIs
StatePublished - 22 Jun 2015

Bibliographical note

Publisher Copyright:
© 2015 AIP Publishing LLC.

NREL Publication Number

  • NREL/JA-5K00-64513

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