|Title:||Dielectric barrier discharge jet processed TiO<inf>2</inf>nanoparticle layer for flexible perovskite solar cells||Authors:||Mallela, Mohana Sruthi
Tsai, Jui Hsuan
Huang, Jian Zhi
JERRY CHENG-CHE HSU
Chen, Mei Hsin
|Keywords:||atmospheric pressure plasma | dielectric barrier discharge | flexible perovskite solar cell | TiO nanoparticle 2||Issue Date:||20-Jan-2022||Journal Volume:||55||Journal Issue:||3||Source:||Journal of Physics D: Applied Physics||Abstract:||
For attaining good-performance perovskite solar cells (PSCs), the carrier collection from the perovskite material to the transport layer plays a prominent role; herein, we demonstrate an atmospheric pressure plasma treatment technique to enhance the interface properties between the active perovskite layer and electron transport layer (ETL). A scan-mode low-temperature helium dielectric barrier discharge (DBD) jet is applied to process the TiO2 nanoparticle layers for the flexible n-i-p PSCs made on ITO-coated polyethylene naphthalate substrates. When the surface of TiO2 nanoparticle ETL is treated by the DBD jet at a scan rate of 2 cm s-1 and scan height of 5 cm by ten times, the photoelectrical conversion efficiency of the cell is enhanced from 12.30% to 13.66%. The performance improvement can be attributed to the increase of hydrophilic O-C = O functional groups on the surface of the TiO2 nanoparticle layer and the reduction of charge transfer resistance of the cell revealed by x-ray photoelectron spectroscopy and electrochemical impedance spectroscopy, respectively. The results show that the low-temperature DBD jet treatment is a promising technique for processing flexible photovoltaic devices.
Atmospheric pressure; Charge transfer; Dielectric devices; Electric discharges; Electrochemical impedance spectroscopy; Electron transport properties; Flow control; High-k dielectric; Perovskite; Perovskite solar cells; Plasma applications; Plasma jets; Temperature; TiO2 nanoparticles; X ray photoelectron spectroscopy; Atmospheric pressure plasmas; Dielectric barrier discharges; Discharge jet; Electron transport layers; Flexible perovskite solar cell; Lows-temperatures; Nanoparticle layers; Performance; TiO2 nano-particles; TiO2nanoparticle; Titanium dioxide
|Appears in Collections:||光電工程學研究所|
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