Open Access Article
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Expression of Concern: Concordantly fabricated heterojunction ZnO–TiO2 nanocomposite electrodes via a co-precipitation method for efficient stable quasi-solid-state dye-sensitized solar cells
Ahmed Esmail Shalana,
Ahmed Mourtada Elsemana,
Mahmoud Raslya,
Marwa M. Moharama,
Monica Lira-Cantub and
Mohamed M. Rashad*a
aElectronic and Magnetic Laboratory, Advanced Materials Division, Central Metallurgical Research & Development Institute (CMRDI), P.O. Box 87, Helwan, Cairo, Egypt. E-mail: rashad133@yahoo.com; Fax: +202-25010639; Tel: +202-25010640-43
bCentro de Investigació en Nanociència i Nanotecnologia, CIN2 (CSIC-ICN), Campus UAB, Edifici ETSE 2nd Floor, Bellaterra, Barcelona E-08193, Spain
First published on 9th November 2023
Abstract
Expression of concern for ‘Concordantly fabricated heterojunction ZnO–TiO2 nanocomposite electrodes via a co-precipitation method for efficient stable quasi-solid-state dye-sensitized solar cells’ by Ahmed Esmail Shalan et al., RSC Adv., 2015, 5, 103095–103104, DOI: 10.1039/C5RA21822E.
The Royal Society of Chemistry is publishing this expression of concern in order to alert readers that concerns have been raised regarding the reliability of the XPS data in Fig. 5, the IPCE data in Fig. 6 (right) and the Nyquist data in Fig. 7. An investigation is underway, and an expression of concern will continue to be associated with the article until a final outcome is reached.
Laura Fisher
02/11/2023
Executive Editor, RSC Advances
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