AI Article Synopsis

  • - Dye-sensitized solar cells (DSSCs) made with freestanding TiO nanotube arrays (TNTAs) enhance energy conversion efficiency (ECE) by incorporating Au nanoparticles and carbon materials through electrodeposition and chemical vapor deposition.
  • - The ECE of standard DSSCs with freestanding TNTAs is 5.87%, which improves to 6.57% with Au NPs and 6.59% with carbon materials.
  • - The combination of both Au NPs and carbon materials leads to a significant ECE increase to 7.24%, representing a 23.34% improvement due to enhanced electron transport and plasmonic effects.

Article Abstract

Dye-sensitized solar cells (DSSCs) are fabricated with freestanding TiO nanotube arrays (TNTAs) which are incorporated with Au nanoparticles (NPs) and carbon materials via electrodeposition and chemical vapor deposition (CVD) method to create a plasmonic effect and better electron transport that will enhance their energy conversion efficiency (ECE). The ECE of DSSCs based on the freestanding TNTAs is 5.87%. The ECE of DSSCs, based on the freestanding TNTAs with Au NPs or carbon materials, is 6.57% or 6.59%, respectively, and the final results of DSSCs according to the freestanding TNTAs with Au NPs and carbon materials is increased from 5.87% to 7.24%, which is an enhancement of 23.34% owing to plasmonic effect and better electron transport. Au NPs are incorporated into the channel of freestanding TNTAs and are characterized by CS-corrected-field emission transmission electron microscope (Cs-FE-TEM) and elemental mapping. Carbon materials are also well-incorporated in the channel of freestanding TNTAs and are analyzed by Raman spectroscopy.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6953097PMC
http://dx.doi.org/10.3390/mi10120805DOI Listing

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Effect of Au Nanoparticles and Scattering Layer in Dye-Sensitized Solar Cells Based on Freestanding TiO Nanotube Arrays.

Nanomaterials (Basel)

January 2021

School of International Engineering and Science, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea.

Article Synopsis
  • Researchers are focusing on enhancing the efficiency of dye-sensitized solar cells (DSSCs) by introducing new materials like gold nanoparticles (Au NPs) and scattering layers.
  • A DSSC without any enhancements achieved a power conversion efficiency (PCE) of 5.85%, while incorporating Au NPs increased the PCE to 6.50%, and adding a scattering layer further improved it to 6.61%.
  • The best performance of 7.12% PCE was achieved with both Au NPs and a scattering layer, showcasing their combined effect on electron generation and light harvesting.
View Article and Find Full Text PDF
Article Synopsis
  • Freestanding TiO nanotube arrays (TNTAs) were created using an electrochemical method, then modified by incorporating Au nanoparticles (NPs) to enhance their performance in dye-sensitized solar cells (DSSCs).
  • The method involved initially etching a barrier layer of closed-ended TNTAs to create open-ended TNTAs, followed by the electrodeposition of Au NPs into these structures.
  • The research found that the energy conversion efficiency (ECE) of DSSCs improved significantly with the open-ended TNTAs and Au NPs, reaching up to 7.120% after optimal etching time, highlighting the benefits of better electron transport and minimized barriers in the system.
View Article and Find Full Text PDF
Article Synopsis
  • - Dye-sensitized solar cells (DSSCs) made with freestanding TiO nanotube arrays (TNTAs) enhance energy conversion efficiency (ECE) by incorporating Au nanoparticles and carbon materials through electrodeposition and chemical vapor deposition.
  • - The ECE of standard DSSCs with freestanding TNTAs is 5.87%, which improves to 6.57% with Au NPs and 6.59% with carbon materials.
  • - The combination of both Au NPs and carbon materials leads to a significant ECE increase to 7.24%, representing a 23.34% improvement due to enhanced electron transport and plasmonic effects.
View Article and Find Full Text PDF

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