Production and characterization of organic solar cells

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)540-548
Journal / PublicationWorld Journal of Engineering
Volume15
Issue number4
Online published6 Aug 2018
Publication statusPublished - 2018
Externally publishedYes

Abstract

Purpose: A study was carried out on the production of a bulk-heterojunction organic solar cell in a laboratory scale using a blend of poly (3-hexylthiophene) (P3HT) and [6, 6] phenyl (C-61) butyric acid methyl ether (PCBM).
Design/methodology/approach: Four inverted geometry organic solar cells were prepared based on 1:1 ratio of P3HT to PCBM and subjected to post annealing at different temperatures of 32, 120, 130 and 140ºC. Solar cells were fabricated with structure: glass/ITO/P3HT:PCBM/PEDOT:PSS/Au and characterized using Keithley 2400 series source meter and a multimeter interfaced to a computer system with a LabVIEW software, which showed both dark and illumination I-V characteristic curves. Four reference cells were also fabricated with structure: Soda Lime glass/P3HT:PCBM and annealed at different temperatures of 32, 120, 130 and 140ºC.
Findings: The third organic solar cell prepared, Sample CITO, had the best performance with power conversion efficiency (PCE) of 2.0281 %, fill factor (FF) of 0.392, short circuit current (ISC) of -0.0133 A and open circuit voltage (VOC) of 0.389 V. Annealing of active layer was found to improve cell morphology, fill factor and power conversion efficiency. Annealing of the active layer at 140ºC resulted in a decrease of the PCE to 2.01 %.
Research limitations/implications: These findings are in good agreement with previous investigation in literature which reported that best annealing temperature for a 1:1 ratio blend of active material is 130ºC. Ultra-violet visible spectra on reference cells showed that Sample CITO had wider absorption spectra with peak absorbance at a wavelength of 508 nm.
Originality/value: This research is purely original.

Research Area(s)

  • solar cells, PCBM, Inverted geometry organic solar cell (IOSC), P3HT, Production and characterization

Citation Format(s)

Production and characterization of organic solar cells. / Uyanga , Kindness A. M. ; Okwu, Modestus Okechukwu ; Adeoye, A. O.; Ogbeide, S. E. .

In: World Journal of Engineering, Vol. 15, No. 4, 2018, p. 540-548.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review