Comparative study of nickel selenide, iron selenide and platinum on triiodide reduction for dye-sensitized solar cells

In this work, nickel selenide (NiSe2) and iron selenide (FeSe2) were synthesized by a simple and mild hydrothermal method. The selenides were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), field-emission scanning electron microscopy (FESEM) and high-resolution...

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Bibliographic Details
Main Authors: Razamin, N.A.Y (Author), Winie, T. (Author), Woo, H.J (Author)
Format: Article
Language:English
Published: Elsevier B.V. 2022
Series:Optical Materials: X
Subjects:
Online Access:View Fulltext in Publisher
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LEADER 03297nam a2200589Ia 4500
001 10.1016-j.omx.2021.100119
008 220124s2022 CNT 000 0 und d
020 |a 25901478 (ISSN) 
245 1 0 |a Comparative study of nickel selenide, iron selenide and platinum on triiodide reduction for dye-sensitized solar cells 
260 0 |b Elsevier B.V.  |c 2022 
490 1 |a Optical Materials: X 
650 0 4 |a % reductions 
650 0 4 |a Catalyst activity 
650 0 4 |a Charge transfer 
650 0 4 |a Comparatives studies 
650 0 4 |a Corrosion resistance 
650 0 4 |a Counter electrode 
650 0 4 |a Counter electrodes 
650 0 4 |a Cyclic voltammetry 
650 0 4 |a Dimethylformamide 
650 0 4 |a Dye- sensitized solar cells 
650 0 4 |a Dye-sensitized solar cells 
650 0 4 |a Electrochemical impedance spectroscopy 
650 0 4 |a Electrodes 
650 0 4 |a Energy dispersive spectroscopy 
650 0 4 |a Energy dispersive X ray spectroscopy 
650 0 4 |a FeSe2 
650 0 4 |a Field emission microscopes 
650 0 4 |a High resolution transmission electron microscopy 
650 0 4 |a Iron compounds 
650 0 4 |a Mild hydrothermal method 
650 0 4 |a Nickel compounds 
650 0 4 |a NiSe2 
650 0 4 |a Organic solvents 
650 0 4 |a Polyelectrolytes 
650 0 4 |a Potassium hydroxide 
650 0 4 |a Scanning electron microscopy 
650 0 4 |a Selenides 
650 0 4 |a Selenium compounds 
650 0 4 |a Simple++ 
650 0 4 |a Solar power generation 
650 0 4 |a Solid electrolytes 
650 0 4 |a Synthesised 
650 0 4 |a X ray diffraction 
650 0 4 |a X- ray diffractions 
856 |z View Fulltext in Publisher  |u https://doi.org/10.1016/j.omx.2021.100119 
856 |z View in Scopus  |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120908259&doi=10.1016%2fj.omx.2021.100119&partnerID=40&md5=d1c21965343ab8c23db3dfb663857c24 
520 3 |a In this work, nickel selenide (NiSe2) and iron selenide (FeSe2) were synthesized by a simple and mild hydrothermal method. The selenides were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), field-emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM). XRD and EDX studies show the compositions of the products. The NiSe2 presents an irregular flaky-like structure whereas the FeSe2 forms a non-uniform rods structure. The catalytic effects of NiSe2 and FeSe2 in comparison to Pt were examined by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The FeSe2 exhibits the highest catalytic activity and the lowest charge transfer resistance, followed by Pt and NiSe2. The photovoltaic and long-run performance of dye-sensitized solar cells (DSSCs) with poly(ε-caprolactone) (PCL)-dimethylformamide (DMF)-potassium iodide (KI) gel polymer electrolytes were investigated with respect to NiSe2, FeSe2 and Pt counter electrodes. The efficiencies attained for NiSe2, FeSe2 and Pt counter electrodes are 6.05, 7.20 and 6.99%, respectively. The FeSe2 demonstrates better corrosion resistance to the iodide/triiodide (I−/I3−) electrolyte than Pt. © 2021 The Author(s) 
700 1 0 |a Razamin, N.A.Y.  |e author 
700 1 0 |a Winie, T.  |e author 
700 1 0 |a Woo, H.J.  |e author 
773 |t Optical Materials: X