Double-layered ZnO nanostructures for efficient perovskite solar cells

Khalid Mahmood, Bhabani S. Swain, Aram Amassian

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


To date, a single layer of TiO2 or ZnO has been the most successful implementations of any electron transport layer (ETL) in solution-processed perovskite solar cells. In a quest to improve the ETL, we explore a new nanostructured double-layer ZnO film for mesoscopic perovskite-based thin film photovoltaics. This approach yields a maximum power conversion efficiency of 10.35%, which we attribute to the morphology of oxide layer and to faster electron transport. The successful implementation of the low-temperature hydrothermally processed double-layer ZnO film as ETL in perovskite solar cells highlights the opportunities to further improve the efficiencies by focusing on the ETL in this rapidly developing field. This journal is
Original languageEnglish (US)
Pages (from-to)14674-14678
Number of pages5
Issue number24
StatePublished - Nov 6 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by the National Research Foundation of Korea (NRF). Part of this work was supported by a Collaborative Research Grant from the Office of Competitive Research Funds at KAUST and by the Career Development SABIC Chair held by AA.

ASJC Scopus subject areas

  • General Materials Science


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