Publication date: 17th February 2025
During operation, perovskite solar cells (PeSCs) are subjected to continuous heating (55–65°C) under 1-sun illumination, with additional heat generated internally through mechanisms such as Joule heating, recombination, and photon thermalization. Effective thermal management or heat dissipation is crucial to minimize heat-induced damage. This study introduces a fullerene derivative, PC61B-TEG, as a multifunctional interlayer between the perovskite and C60 electron transport layer (ETL) in inverted PeSCs. To enhance heat dissipation and charge extraction, PC61B-TEG was doped with N-DMBI, an n-type dopant. The incorporation of n-doped PC61B-TEG significantly improved device performance, achieving a PCE of 24.42%. The device also demonstrated exceptional thermal stability, retaining 90% of its initial PCE after 2400 hours at 85°C (under N2 without encapsulation) and 80% of its initial PCE after 1180 hours under 1-sun illumination at room temperature and 25% RH (with encapsulation). The improved thermal conductivity (κ) of the n-doped PC61B-TEG enabled efficient heat transfer from the perovskite layer, while enhanced electrical conductivity (σ) and an upshifted Fermi level (EF) facilitated superior charge transport and increased quasi-Fermi level splitting. This resulted in higher open-circuit voltage (VOC), short-circuit current density (JSC), and fill factor (FF). The study underscores the importance of doping in enhancing both performance and stability, demonstrating its potential for diverse perovskite optoelectronic applications.[1,2]
This work was funded by National Research Foundation (NRF) of Korea (2019R1A6A1A11044070, 2020M3H4A3081814).
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.