Graphene-Si3N4 nanocomposite blended polymer counter electrode for low-cost dye-sensitized solar cells

Fadzai Lesley Chawarambwa; Tika Erna Putri; Min Kyu Son; Kunihiro Kamataki; Naho Itagaki; Kazunori Koga; Masaharu Shiratani

doi:10.1016/j.cplett.2020.137920

Graphene-Si₃N₄ nanocomposite blended polymer counter electrode for low-cost dye-sensitized solar cells

Fadzai Lesley Chawarambwa, Tika Erna Putri, Min Kyu Son, Kunihiro Kamataki, Naho Itagaki, Kazunori Koga, Masaharu Shiratani

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

In this study equal weights of graphene and Si₃N₄ nanoparticles were mechanically mixed with PEDOT:PSS to a form uniform solution. Graphene-Si₃N₄/PEDOT:PSS (GNP-Si₃N₄/PEDOT:PSS) composite films were prepared by spin coating on transparent conducting glass as low-cost counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The electrocatalytic property of the GNP-Si₃N₄/PEDOT:PSS CE was characterized by cyclic voltammetry and electrochemical impedance spectroscopy. Finally, a DSSC based on GNP-Si₃N₄/PEDOT:PSS CE containing 100 mg GNP-Si₃N₄ achieved and an efficiency of 5.24% under simulated solar irradiation of 100 mW cm⁻². This is comparable to the performance of the Pt CE which had a cell efficiency of 5.37%.

Original language	English
Article number	137920
Journal	Chemical Physics Letters
Volume	758
DOIs	https://doi.org/10.1016/j.cplett.2020.137920
Publication status	Published - Nov 2020

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/j.cplett.2020.137920

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title = "Graphene-Si3N4 nanocomposite blended polymer counter electrode for low-cost dye-sensitized solar cells",

abstract = "In this study equal weights of graphene and Si3N4 nanoparticles were mechanically mixed with PEDOT:PSS to a form uniform solution. Graphene-Si3N4/PEDOT:PSS (GNP-Si3N4/PEDOT:PSS) composite films were prepared by spin coating on transparent conducting glass as low-cost counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The electrocatalytic property of the GNP-Si3N4/PEDOT:PSS CE was characterized by cyclic voltammetry and electrochemical impedance spectroscopy. Finally, a DSSC based on GNP-Si3N4/PEDOT:PSS CE containing 100 mg GNP-Si3N4 achieved and an efficiency of 5.24% under simulated solar irradiation of 100 mW cm−2. This is comparable to the performance of the Pt CE which had a cell efficiency of 5.37%.",

author = "Chawarambwa, {Fadzai Lesley} and Putri, {Tika Erna} and Son, {Min Kyu} and Kunihiro Kamataki and Naho Itagaki and Kazunori Koga and Masaharu Shiratani",

year = "2020",

month = nov,

doi = "10.1016/j.cplett.2020.137920",

language = "English",

volume = "758",

journal = "Chemical Physics Letters",

issn = "0009-2614",

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TY - JOUR

T1 - Graphene-Si3N4 nanocomposite blended polymer counter electrode for low-cost dye-sensitized solar cells

AU - Chawarambwa, Fadzai Lesley

AU - Putri, Tika Erna

AU - Son, Min Kyu

AU - Kamataki, Kunihiro

AU - Itagaki, Naho

AU - Koga, Kazunori

AU - Shiratani, Masaharu

PY - 2020/11

Y1 - 2020/11

N2 - In this study equal weights of graphene and Si3N4 nanoparticles were mechanically mixed with PEDOT:PSS to a form uniform solution. Graphene-Si3N4/PEDOT:PSS (GNP-Si3N4/PEDOT:PSS) composite films were prepared by spin coating on transparent conducting glass as low-cost counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The electrocatalytic property of the GNP-Si3N4/PEDOT:PSS CE was characterized by cyclic voltammetry and electrochemical impedance spectroscopy. Finally, a DSSC based on GNP-Si3N4/PEDOT:PSS CE containing 100 mg GNP-Si3N4 achieved and an efficiency of 5.24% under simulated solar irradiation of 100 mW cm−2. This is comparable to the performance of the Pt CE which had a cell efficiency of 5.37%.

AB - In this study equal weights of graphene and Si3N4 nanoparticles were mechanically mixed with PEDOT:PSS to a form uniform solution. Graphene-Si3N4/PEDOT:PSS (GNP-Si3N4/PEDOT:PSS) composite films were prepared by spin coating on transparent conducting glass as low-cost counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The electrocatalytic property of the GNP-Si3N4/PEDOT:PSS CE was characterized by cyclic voltammetry and electrochemical impedance spectroscopy. Finally, a DSSC based on GNP-Si3N4/PEDOT:PSS CE containing 100 mg GNP-Si3N4 achieved and an efficiency of 5.24% under simulated solar irradiation of 100 mW cm−2. This is comparable to the performance of the Pt CE which had a cell efficiency of 5.37%.

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VL - 758

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 137920

ER -

Graphene-Si₃N₄ nanocomposite blended polymer counter electrode for low-cost dye-sensitized solar cells

Abstract

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