Effect of Carbon Nanotubes on the performance of Perovskite Solar Cells

Rebecca Emmanuel Mfon, Ayomide Hassan Labulo, Zakiya Al Amri, Stanley Esaduwha and Jamilu Labaran
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Rebecca Emmanuel Mfon: Federal University of Lafia, Nigeria
Ayomide Hassan Labulo: Federal University of Lafia, Nigeria
Zakiya Al Amri: University of Technology and Applied Sciences, Sultanate of Oman
Stanley Esaduwha: Federal College of Education, Nigeria
Jamilu Labaran: Federal University of Lafia, Nigeria

European Journal of Energy Research, 2022, vol. 2, issue 4, 62-68

Abstract: Perovskite solar cells (PSCs) made with metal halide are affordable and can give better efficiency values than older versions but their low efficiency values is still a concern. Two Perovskite solar cells were fabricated and one had Multi wall Carbon nanotube (MWCNT) in its design. The effect of the Multi-wall Carbon nanotube (MWCNT) on their performance and power conversion were studied. MWCNT and m-TiO2 materials were characterised using UV-vis spectroscopy and their optical energy band gap values were obtained. The TiO2 showed a prominent peak at 319 nm with absorbance 0.5 and its optical energy bandgap of 2.59 eV falls in the visible region showing it is a clean energy source with implications for solar energy conversion. The MWCNT has 2.19 eV and showed multiple peaks. A prominent peak at 329 nm with absorbance 0.6 which was blue shifted and a peak at 517 nm with absorbance 0.3 was red-shifted. The PSC with the MWCNT in the light had a fill factor of 0.53 but 0.47 was obtained for the PSC without the MWCNT. The PSC with MWCNT had power conversion efficiency (PCE) of 40.1 % in the dark, a value which was 2.7 % higher than the PCE of 37.4 % obtained for the same cell in light. Furthermore, the PSC without the MWCNT in the dark had a fill factor of 0.87 while the PSC with MWCNT in the dark had a fill factor was 0.51. The PSC with MWCNT had better power conversion efficiency when in the dark than in light.

Keywords: Fill factor; hole transport material; multiwall carbon nanotube; perovskites; power conversion efficiency (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:epw:energy:v:2:y:2022:i:4:id:7083

DOI: 10.24018/ejenergy.2022.2.4.83

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