Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP27)
Publication date: 22nd October 2026
Solar energy is a clean, renewable resource that reduces greenhouse gas emissions and dependence on fossil fuels. Perovskite-based photovoltaic devices are promising next-generation technologies due to their high efficiency and low cost. Perylene, a polycyclic aromatic hydrocarbon (PAH), offers excellent electronic properties from its extended π-conjugation and photostability. Its π-π stacking interactions enable efficient charge transport. In this study, side-chain-functionalized perylene diimide (PDI) molecules were synthesized, with PDIAPI showing the best performance as an electron transport layer (ETL) in perovskite solar cells. The synthesis used hydrothermal conditions with water as a solvent, offering a greener alternative to traditional organic methods. Band gap and electron affinity were evaluated theoretically using Density Functional Theory (DFT) at the B3LYP/6-311G* level and experimentally via cyclic voltammetry (CV), differential pulse voltammetry (DPV), and UV-Vis spectroscopy. Calculated values were 2.32 eV (band gap) and 6.28 eV (electron affinity), while experimental values were 2.11 eV and 6.38 eV, showing good agreement. Devices with PDIAPI ETL showed open-circuit voltage (Voc) and short-circuit current density (Jsc) comparable to fullerene-based references for MAPI, and higher Jsc for wide-bandgap MAPBr perovskites, due to improved band alignment and charge transfer—highlighting its suitability for tandem and multi-junction solar cells.
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International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
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.