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Lu D, Li J, Lu G, Qin L, Liu D, Sun P, Liu F, Lu G. Enhanced photovoltaic properties of dye-sensitized solar cells using three-component CNF/TiO 2/Au heterostructure. J Colloid Interface Sci 2019; 542:168-176. [PMID: 30738309 DOI: 10.1016/j.jcis.2019.02.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 01/26/2019] [Accepted: 02/01/2019] [Indexed: 10/27/2022]
Abstract
To further increase the photoelectric efficiency of dye-sensitized solar cell (DSSC), enhancing the light adsorption of photoanode and suppressing the recombination of photo-generated charges are of great importance. Motivated by this, a novel and efficient three-component CNF/TiO2/Au heterostructure was successfully constructed and employed as an alternative photoanode material. The as-prepared CNF/TiO2/Au is characterized by conductive carbon nanofiber (CNF) core, uniform TiO2 outer shell assembled by upright nanorods, and surface modification with well-dispersed Au nanoparticles. To demonstrate the potential application of such material in DSSC, a comparison of photoelectric properties with commercial P25 and binary composite CNF/TiO2 was carried out. By contrast, the ternary composite CNF/TiO2/Au exhibited the highest short-circuit photocurrent density of 15.47 mA cm-2 and photoelectric conversion efficiency of 6.45%, which is about 31% higher than that of the commercial P25-based DSSCs. The great improvement of photoelectric properties for ternary composite CNF/TiO2/Au might be attributed to not only the conspicuous light adsorption ability derived from the sufficient dye loading of CNF/TiO2/Au and the surface plasmon resonance of Au nanoparticles, but also the reduced recombination endowed by the conductive CNF core and the heterojunctions at the interface.
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Affiliation(s)
- Dongxiao Lu
- Nanophotonics and Biophotonics Key Laboratory of Jilin Province, School of Science, Changchun University of Science and Technology, Changchun 130022, PR China; State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China.
| | - Jinhua Li
- Nanophotonics and Biophotonics Key Laboratory of Jilin Province, School of Science, Changchun University of Science and Technology, Changchun 130022, PR China.
| | - Guohui Lu
- College of Physics, Jilin University, Changchun 130012, PR China
| | - Longgui Qin
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Deye Liu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Peng Sun
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Fengmin Liu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Geyu Lu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China.
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High-efficiency dye-sensitized solar cells based on bilayer structured photoanode consisting of carbon nanofiber/TiO2 composites and Ag@TiO2 core-shell spheres. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.09.146] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Liu Z, Li L. Coal Combustion Synthesis of Coal Cinder-Supported TiO2 with Commendable Photocatalytic Activity. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1408-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Effective photoconversion of CO2 into CH4 over Ti30Si70MCM-41 nanoporous catalyst photosensitized by a ruthenium dye. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0073-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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