Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO25)
Publication date: 24th April 2025
Perovskite Solar Cells (PSC) have seen a burst in development due to perovskite favourable photoelectrical properties, however many drawbacks such as instability toward humidity, light and oxygen still undermine their large scale employment. [1]
Different solutions have been proposed for the protection of perovskite layers while granting device stability and preserving efficiency.
In this context, the introduction of a P3HT hole transporting layer has been demonstrated to enhance the stability of solar cells. Furthermore, when rGO is integrated in the polymer, both solar cell efficiency and stability are improved.
However, this incorporation is not trivial without resorting to a functionalization of rGO for a better incorporation on the polymer. [2][3]
In light of these considerations, this project focuses on the study of different thin film samples where new functionalized rGO@P3HT blends are deposited through spin coating onto glass and MAPbI3.
The investigation is conducted through Electron Paramagnetic Resonance (EPR) spectroscopy, a technique particularly useful for the detection of the paramagnetic species present in solar cells (radicals, excited states, localized charges, etc.), with the aim to assess the homogeneous incorporation of these rGO derivatives into P3HT, their effect on the polymer deposition and partial orientation and on the presence of charge defects either stable or photogenerated at the interface with the perovskite active layer.
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The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.