Structural properties of perovskite films on zinc oxide nanoparticles-reduced graphene oxide (ZnO-NPs/rGO) prepared by electrophoretic deposition technique

Ayi Bahtiar, Euis Siti Nurazizah, Efa Latiffah, R. Risdiana, Yukio Furukawa

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Perovskite solar cells highly believed as next generation solar cells to replace currently available inorganic silicon solar cells due to their high power conversion efficiency and easy processing to thin films using solution processing techniques. Performance and stability, however still need to be improved for mass production and widely used for public electricity generation. Perovskite solar cells are commonly deposited on Titanium Dioxide (TiO2) film as an effective electron transport layer (ETL). We used Zinc Oxide nanoparticles (ZnO-NPs) as ETL in perovskite solar cells due to the low temperature required for crystallization and can be formed into different shapes of nanostructures. However, perovskite film can easily degrade into insulating lead iodide due to deprotonation of the methylammoniumcation at the surface of ZnO-NPs, in particular when it stored in ambient air with high relative humidity. The degradation of perovskite layer is therefore needed to be overcome. Here, we capped ZnO-NPs with reduced graphene oxide (rGO) to overcome the degradation of perovskite film where ZnO-NPs is synthesized by sol-gel method. The average nanoparticle size of ZnO is 15 nm. ZnO-NPs and ZnO-NPs-rGO films are prepared using electrophoretic deposition technique, which can produce large area with good homogeneity and high reproducibility. The stability of perovskite layer can significantly be improved by capping ZnO with rGO, which is indicated by absence of color change of perovskite after storage for 5 (five) days in ambient air with relative humidity above 95%. Moreover, the X-Ray Diffaction peaks of perovskite film are more preserved when deposited on ZnO/rGO film than using only ZnO film. We strongly believe, by capping ZnO film with rGO, both the performance and stability of perovskite solar cells can be improved significantly.

本文言語English
ホスト出版物のタイトル1st International Conference and Exhibition on Powder Technology Indonesia, ICePTi 2017
編集者I Made Joni, Camellia Panatarani
出版社American Institute of Physics Inc.
ISBN(電子版)9780735416192
DOI
出版ステータスPublished - 2018 2 9
イベント1st International Conference and Exhibition on Powder Technology Indonesia, ICePTi 2017 - Jatinangor, Indonesia
継続期間: 2017 8 82017 8 9

出版物シリーズ

名前AIP Conference Proceedings
1927
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other1st International Conference and Exhibition on Powder Technology Indonesia, ICePTi 2017
CountryIndonesia
CityJatinangor
Period17/8/817/8/9

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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