Cost-effective liquid-junction solar devices with plasma-implanted Ni/TiN/CNF hierarchically structured nanofibers

Liu, Rugeng, Peng, Xiang, Han, Xu, Xu, Chun Hong, Cheng, Kuan-Chen, Santoso, Shella Permatasari, Shen, Hsin-Hui, Ruan, Qingdong, Cao, Fahe, Yu, Edward T., Chu, Paul K. and Hsu, Hsien-Yi (2021) Cost-effective liquid-junction solar devices with plasma-implanted Ni/TiN/CNF hierarchically structured nanofibers. Cost-effective liquid-junction solar devices with plasma-implanted Ni/TiN/CNF hierarchically structured nanofibers, 887 (15). p. 115167. ISSN 15726657,Jurnal Internasional Bereputasi SJR(2020): 0.85, Q1, H-Index: 158

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Official URL: https://www.sciencedirect.com/journal/journal-of-e...

Abstract

Carbon-based conductive materials have been recognized as promising alternatives to noble metals as the electrode in optoelectronic devices. Herein, by utilizing energetic plasma ion implantation, Ni-doped TiN nanowire (NWs) modified graphitic carbon nanofibers (CNF) are designed and prepared as the candidates of the platinum (Pt) counter electrode for low-cost hybrid perovskite-based liquid-junction photoelectrochemical solar cells (LPSCs). Notably, the photoelectrochemical (PEC) response of p-Rb0.05FA0.95PbI3 based-LPSCs equipped with the Ni/TiN/CNF counter electrode is almost identical to that with a typical Pt counter electrode. From electrochemical investigations, i.e., electrochemical impedance spectroscopy (EIS), we observe that the CNFbased materials show a similar redox activity compared with the Pt counter electrode, indicating low charge-transfer resistance (Rct) and large capacitance (C). The LPSCs, with a configuration of p-Rb0.05FA0.95PbI3/BQ (2 mM), BQ�− (2 mM)/Ni/TiN/CNF-based counter electrode, exhibit an open-circuit photovoltage of 1.00 V and a short-circuit current density of 7.02 mA/cm2 under 100 mW/cm2 irradiation. The overall optical-to-electrical energy conversion efficiency is 5.06%. The PEC solar cell shows good stability for 5 h under irradiation. The CNF-based counter electrode enables potential applications, including but not limited to PEC solar devices, dye-sensitized solar cells (DSSCs), solar fuel devices and hydrogen evolution reaction.

Item Type:	Article
Additional Information:	Jurnal Internasional Bereputasi SJR(2020): 0.85, Q1, H-Index: 158
Uncontrolled Keywords:	Counter electrode Photoelectrochemistry Carbon materials
Subjects:	Engineering > Chemical Engineering
Divisions:	Journal Publication
Depositing User:	F.X. Hadi
Date Deposited:	13 Jul 2022 04:42
Last Modified:	02 Aug 2022 07:14
URI:	http://repository.ukwms.ac.id/id/eprint/31436

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