Nwankwo, U. and Ngqoloda, Siphelo and Nkele, Agnes C. and Arendse, Christopher J. and Ozoemena, Kenneth I. and Ekwealor, A. B. C. and Rajan, Jose and Maaza, Malik and Ezema, Fabian I. (2020) Effects of alkali and transition metal-doped TiO2 hole blocking layers on the perovskite solar cells obtained by a two-step sequential deposition method in air and under vacuum. RSC Advances, 10 (22). pp. 13139-13148. ISSN 2046-2069. (Published)
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Abstract
Planar perovskite solar cells (PPSCs) have received great attention in recent years due to their intriguing properties, which make them a good choice for photovoltaic applications. In this work, the effect of alkali and transition metal-doped TiO2 (cesium-doped TiO2 (Cs-TiO2) and yttrium-doped TiO2 (Y-TiO2)) compact layers on the optical, structural and the photovoltaic performance of the PPSCs have been investigated. The perovskite layer syntheses were carried out by depositing a lead iodide (PbI2) layer via spin-coating; converting PbI2 into methyl ammonium iodide (CH3NH3PbI3) by chemical vapor deposition (CVD) and spin-coating at 60 min and 60 s conversion times respectively. The as-deposited PPSCs were studied layer-by-layer using an X-ray diffractometer, scanning electron microscope, and UV-vis diffuse reflectance, transmittance and absorbance. The power conversion efficiency for stable processed perovskite solar cells were 3.61% and 12.89% for air and vacuum processed, respectively.
| Item Type: | Article |
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| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Ammonium iodide; Chemical vapor deposition; Coatings; Iodine compounds |
| Subjects: | H Social Sciences > H Social Sciences (General) T Technology > T Technology (General) |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Pn. Hazlinda Abd Rahman |
| Date Deposited: | 28 Oct 2021 06:56 |
| Last Modified: | 28 Oct 2021 06:56 |
| URI: | http://umpir.ump.edu.my/id/eprint/29866 |
| Download Statistic: | View Download Statistics |
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