Boosting the Efficiency of Dye‐Sensitized Solar Cells by a Multifunctional Composite Photoanode to 14.13

We report a new strategy to fabricate a multifunctional composite photoanode containing TiO2 hollow spheres (TiO2‐HSs), Au nanoparticles (AuNPs) and novel NaYF4 : Yb,Er@NaLuF4 : Eu@SiO2 upconversion nanoparticles (UCNPs). The AuNPs are grown on the photoanode film including TiO2‐HSs and UCNPs by a s...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie International Edition 2023-06, Vol.62 (23), p.e202302753-n/a
Main Authors: Zhang, Siqi, Huang, Fuhua, Guo, Xugeng, Xiong, Ye, Huang, Yafei, Ågren, Hans, Wang, Li, Zhang, Jinglai
Format: Article
Language:English
Subjects:
Au Nanoparticles
Commercialization
Composite Photoanode
Dye-Sensitized Solar Cells
Dyes
Energy conversion efficiency
Erbium
Gold
Nanoparticles
Photoanodes
Photons
Photovoltaic cells
Silicon dioxide
Solar Cells
Surface plasmon resonance
Titanium dioxide
Upconversion Nanoparticles
Ytterbium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report a new strategy to fabricate a multifunctional composite photoanode containing TiO2 hollow spheres (TiO2‐HSs), Au nanoparticles (AuNPs) and novel NaYF4 : Yb,Er@NaLuF4 : Eu@SiO2 upconversion nanoparticles (UCNPs). The AuNPs are grown on the photoanode film including TiO2‐HSs and UCNPs by a simple in situ plasmonic treatment. As a result, an impressive power conversion efficiency of 14.13 % is obtained, which is a record for N719 dye‐based dye‐sensitized solar cells, demonstrating great potential for the solar cells toward commercialization. This obvious enhancement is ascribed to a collaborative mechanism of the TiO2‐HSs exhibiting excellent light‐scattering ability, of the UCNPs converting near‐infrared photons into visible photons and of the AuNPs presenting outstanding surface plasmon resonance effect. Notably, a steady‐state experiment further reveals that the champion cell exhibits 95.33 % retainment in efficiency even after 180 h of measurements, showing good device stability. A new strategy to fabricate a multifunctional composite photoanode containing TiO2 hollow spheres, Au nanoparticles and upconversion nanoparticles is presented. A champion power conversion efficiency of 14.13 % is obtained, which is a record for N719 dye‐based dye‐sensitized solar cells.
ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.202302753