Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
Publication date: 20th April 2022
Organic-inorganic hybrid perovskites are attracting significant attention due to their numerous advantages such as superior optical/electrical properties and solution processability. However, the efficiency of perovskite solar cells and device stability are still limited by the defects which originate from the inevitable formation of perovskite grain boundary and the sensitive dependency of perovskite grain growth. To solve these issues, here we present a simple, efficient polymer-permeating grain boundary (PPGB) method that hydrophobic hole transport materials (HTM) are introduced into the perovskite grain boundary down to the bottom after fabricating dense, single-like perovskite grain. This approach of filled perovskite grain boundary from HTM leads to defect passivation and enhancement of hole extraction with improved highly solar cell efficiency and stability. It was achieved that the modified device has decreasing leakage current, 3.8 times enhancement of hole mobility, as well as reduced trap state density comparing pristine device. Consequently, modified perovskite solar cell performance are significantly enhanced from 16.5 % to 18.6 % with the short circuit current density of 23.2 mA cm-2, the open-circuit voltage of 0.99 V, fill factor of 0.81 and the stability also increases under the ambient environment due to covering perovskite grain from hydrophobic HTM.
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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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