Low-temperature processed TiOx/Zn1-xCdxS nanocomposite for efficient MAPbIxCl1-x Perovskite and PCDTBT:PC70BM polymer solar cells

Binh Duong, Khathawut Lohawet, Tanyakorn Muangnapoh, Hideki Nakajima, Narong Chanlek, Anirudh Sharma, David A. Lewis, Pisist Kumnorkaew

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    The majority of high-performance perovskite and polymer solar cells consist of a TiO2 electron transport layer (ETL) processed at a high temperature (>450 °C). Here, we demonstrate that low-temperature (80 °C) ETL thin film of TiOx:Zn1-xCdxS can be used as an effective ETL and its band energy can be tuned by varying the TiOx:Zn1-xCdxS ratio. At the optimal ratio of 50:50 (vol%), the MAPbIxCl1-x perovskite and PCBTBT:PC70BM polymer solar cells achieved 9.79% and 4.95%, respectively. Morphological and optoelectronic analyses showed that tailoring band edges and homogeneous distribution of the local surface charges could improve the solar cells e°ciency by more than 2%. We proposed a plausible mechanism to rationalize the variation in morphology and band energy of the ETL.

    Original languageEnglish
    Article number980
    JournalPolymers
    Volume11
    Issue number6
    DOIs
    Publication statusPublished - 3 Jun 2019

    Bibliographical note

    '© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).'

    Keywords

    • Electron transport layer
    • Perovskite
    • Polymer
    • Scanning Kelvin probe microscopy
    • Solar cells
    • TiO
    • ZnCdS

    Fingerprint Dive into the research topics of 'Low-temperature processed TiO<sub>x</sub>/Zn<sub>1-x</sub>Cd<sub>x</sub>S nanocomposite for efficient MAPbIxCl<sub>1-x</sub> Perovskite and PCDTBT:PC<sub>70</sub>BM polymer solar cells'. Together they form a unique fingerprint.

  • Cite this