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Updated: Jan 28, 2026

Flash Infrared Annealing for Perovskite Solar Cell Processing
Published on: February 3, 2021
TiO₂ Nanoparticles/Nanotubes for Efficient Light Harvesting in Perovskite Solar Cells
Hwa-Young Yang1, Won-Yeop Rho2, Seul Ki Lee3
1School of Semiconductor and Chemical Engineering, Solar Energy Research Center, Chonbuk National University, Jeollabuk-do 54896, Korea. shot7108@gmail.com.
Abstract:
To enhance the light harvesting capability of perovskite solar cells (PSCs), TiO₂ nanoparticles/nanotubes (TNNs) were incorporated into the active layer of PSCs. The TNN-containing cells showed a substantial increase in photocurrent density (J), from 23.9 mA/cm² without nanotubes to 25.5 mA/cm², suggesting that the TiO₂ nanotubes enhanced the charge conduction and harvested more sunlight, which was attributed to the Mie scattering effect. Compared to the power conversion efficiency (PCE) of TiO₂ nanoparticles in the active layer (14.16%), the TNN-containing cells with optimal loading of 9 wt % TiO₂ nanotubes showed a high PCE of 15.34%.
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