Toward new energy storage devices: Electrochemical and photovoltaic performance of SnSe/Fe, SnSe/Ni nanospherical composites

被引：9
作者：
Dar, Mohd Arif [1 ]
Mala, Nazir Ahmad [1 ]
Govindarajan, D. [1 ]
Dar, G. N. [2 ]
Siva, C. [3 ]
Rather, Aafaq A. [4 ]
Ahamed, S. Rafi [5 ]
机构：
[1] Annamalai Univ, Dept Phys, Annamalainagar 608002, Tamil Nadu, India
[2] Univ Kashmir, Dept Phys, Srinagar, Jammu & Kashmir, India
[3] SRM Inst Sci & Technol, Coll Engn & Technol, Dept Phys & Nanotechnol, SRM Nagar, Kattankulathur 603203, Tamil Nadu, India
[4] Symbiosis Stat Inst, Symbiosis Int, Pune 411004, India
[5] AMET Univ, Dept Phys, 135 Kanathur, Chennai 603112, India
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2023年 / 148卷
关键词：
Co; -precipitation; Photovoltaic; Specific capacitance; Powerconversion efficiency; EFFICIENT COUNTER ELECTRODES; SENSITIZED SOLAR-CELLS; OXIDE THIN-FILMS; GRAPHENE; NANOPARTICLES; NANOSTRUCTURES; NANOHYBRID; GROWTH; FOAM; COST;
D O I：
10.1016/j.inoche.2022.110318
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Nanospherical composites (NSC) of SnSe/Fe and SnSe/Ni were synthesized by co-precipitation technique and analyzed for supercapacitor (SC) and photovoltaic material for energy storage devices. The XRD confirms the orthorhombic crystal structure of SnSe/Fe and SnSe/Ni NSC. The morphology analysis shows that SnSe/Fe and SnSe/Ni NSC change spherical shapes into ball-like structures. The direct energy bandgap values of SnSe, SnSe/ Fe and SnSe/Ni NSC are 2.8 eV, 2.6 eV and 2.1 eV, respectively. The SnSe/Ni electrode exhibited the highest specific capacitance of 1253 F/g at the scan rate of 10 mV/s which is higher than SnSe/Ni (935 F/g) and pure SnSe (703 F/g) electrodes, respectively. Additionally, SnSe/Ni electrodes shows excellent energy density values 25 Ws/g than SnSe/Ni (17.5Ws/g) and pure SnSe (12.5 Ws/g) electrodes, corresponding to power density 2.5 W/ g, respectively. Under stimulated solar light irradiation with an intensity of 1.5 AM, the dye-sensitized solar cells (DSSCs) based on NiSnSe hybrid counter electrode (CE) achieves a power conversion efficiency (PCE) of 10.30 % which is higher than that of FeSnSe, SnSe and conventional platinum (Pt) CEs, respectively.
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页数：10
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