High-efficiency organic solar cells using pulsed laser deposition

Author : Meaad Al-hadidi , Morooj A. Abood, Ali Z. Manshad

Abstract : Currently the Titanium oxide (TiO2 ) nanoparticles have garnered a lot of researcher interest as electron transport layer material of organic solar cells due to its effect on the efficiency and stability. In this work, TiO2 nanoparticle powder was deposited by pulsed laser deposition as an electron transport layer in an inverted organic solar cell structure (FTO/TiO2/PTB7-Th:O-IDTBR/MoO3/Ca). The photostability and cell characterizations using the Ossila Solar Cell I-V Test System have been investigated. It was found the power conversion efficiency was over 20% under continuous illumination and for six hours the efficiency dropped from 20.31% to 8.53% under ambient air conditions. The Field Emission Scanning Electron Microscopy (FESEM) image of the cross-section demonstrated the thin film thickness within the nanoscale.

Keywords : TiO₂ nanoparticles, electron transport layer, organic solar cells, pulsed laser deposition, photostability

Conference Name : International Conference on Nanomaterials in Sustainable Renewable Energy (ICNSRE-26)

Conference Place : Birmingham, UK

Conference Date : 27th Jan 2026