Publication date: 15th December 2025
Printable organic solar cells are intrinsically interface‑rich: interfacial chemistry governs charge extraction, recombination, and durability, while optical design sets absorption and spectral selectivity. We develop a molecular “interface grammar” using self‑assembled monolayers (SAMs) to rationally control energetics and stability in non‑fullerene–acceptor OPVs. By tuning anchoring chemistry, conjugation, dipole orientation, and programmed SAM–BHJ interactions (π–π, quadrupolar), SAMs align work functions, improve wetting and molecular registry, suppress interdiffusion, and stabilize UV‑exposed contacts—enhancing carrier extraction, lowering non‑radiative losses, and extending operational stability [1]. Crucially, this same molecular logic is carried into manufacturing through azeotrope‑assisted SAM processing, which enables low‑temperature, printed p–i–n stacks with improved reproducibility and reduced solvent use—maintaining the interfacial benefits while meeting scalability and sustainability targets [2].
With robust OPV interfaces as the foundation, we then apply the identical SAM toolkit to the most fragile buried interface in perovskite/organic tandems: the interconnection layer (ICL), where imbalanced transport—especially inadequate hole transport in the organic subcell—causes voltage deficits and severe non‑radiative recombination. A hole‑transport SAM anchored to MoO3 converts its inherently n‑type character to a p‑type surface; a SAM/MoO3/SAM sandwich further strengthens hole extraction, balances carrier transport, and suppresses interfacial recombination, yielding tandems with 26.05% PCE and Voc = 2.21 V (certified 2.216 V) and improved stability [3]. Finally, we close the loop between chemistry and optics: high‑throughput transfer‑matrix simulations coupled to genetic algorithms co‑design the multilayer stack around these SAM‑engineered interfaces, optimizing absorption–parasitic trade‑offs and tailoring spectra for semitransparent and color‑tunable devices [4]. Together, SAM‑programmed interfaces, solvent‑lean scalable processing, and data‑guided optical co‑design form a coherent pathway from durable, high‑efficiency OPV to promising hybrid tandem cells
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
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.