Effect of concentration of MoS2 on the TCO-Pt free polyaniline nano-rod based counter electrode for dye sensitised solar cell application

Document Type

Article

Publication Date

8-24-2022

Abstract

The concentration effect of molybdenum disulphide (MoS2) on the catalytic activity of polyaniline (PANi)-based counter electrode (CE) was investigated for cost-effective replacement of both transparent conducting oxide (TCO) and platinum (Pt) for dye-sensitised solar cell application (DSSC). Simple chemical mixing is employed to introduce 0.5 wt%, 2 wt%, 5 wt%, 7 wt% and 9 wt% MoS(2 )nanoparticles in the optimised thickness of PANi matrix. The drop-casting method is used to achieve a uniform layer on a normal glass substrate. Morphology and structural composition were studied using scanning electron microscopy and X-ray diffraction. Fourier transform infrared was used to identify redox-active functionalities. Electrochemical impedance spectroscopy and cyclic voltammetry were employed to study electron transfer and catalytic activity. Finally, I-V testing was carried out using asun simulator. Aremarkable 9.02% efficiency has been exhibited by PANi-7 wt% MoS2 nanocomposite CE-based DSSC which is 9.73% higher compared to TCO-Pt CE-based DSSC.

Keywords

Molybdenum, Disulphide, Polyaniline, Chemical mixing, Counter electrode, DSSC

Publication Title

Materials Technology

Divisions

mechanical,umpedac

Funders

UM Power Energy Dedicated Advanced Centre (UMPEDAC),Higher Institution Centre of Excellence (HICoE) Program Research Grant, UMPEDAC - 2020 (MOHE HICOE - UMPEDAC), Ministry of Education Malaysia, University of Malaya (Grant No: TOP100UMPEDAC & RU003-2020)

Volume

37

Issue

10

Publisher

TAYLOR & FRANCIS LTD

Publisher Location

2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND

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