Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP20)
Publication date: 14th October 2019
The rapid development of organic solar cells (OSCs) based on non-fullerene acceptors has attracted increasing attention during the past few years, with a record power conversion efficiency of over 15% in a binary bulk heterojunction architecture.[1] A key material for recent high-performance OSCs is a non-fullerene acceptor (NFA), which has exhibited better performance compared to conventional fullerene acceptors.[2] Since NFAs have a much wider variety of molecular structures, there are many possibilities to fabricate ternary organic solar cells (TSCs), which contain a single three- component photoactive layer without need for multiple stacks.[3]
Up to now, research effort on TSCs has mostly focused on donor-donor-acceptor (D-D-A) type, while perylenediimide (PDI) -based ternary devices have been rarely studied.[4]
In this study, ternary OSCs using two acceptor molecules designed with the PDI unit (PDI-1 and PDI-2) as acceptors and PBDB-T as donor were fabricated and characterized. The power conversion efficiency (PCE) of the ternary OSCs was improved by introducing the third component PDI-2, compared to the binary OSCs composed of PBDB-T and PDI-1. This improvement is attributed to a cascade-like energy level alignment.
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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.
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