Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP24)
Publication date: 18th October 2023
In our study, we explore the use of 1,8-Diazabicyclo(5.4.0)undec-7-ene (DBU) as a dedoping agent for the modification of PEDOT:PSS, with the objective of reducing its hole population. By decreasing the hole concentration in PEDOT:PSS, we aimed to reduce its conductivity, and minimize the surface recombination occurring at the interface of PEDOT:PSS and SnPb perovskite. Through photoluminescence (PL) analysis, we observed an increase in the PL of perovskite on PEDOT:PSS as the concentration of DBU in PEDOT:PSS was increased. Furthermore, we employed a UV-visible spectrophotometer to examine the PEDOT:PSS sample following treatment with DBU. Our findings revealed an elevated absorption peak at 600 nm, indicative of the π-π* transition, and a diminished peak at 900 nm, associated with the polarization band. This observation provides evidence of a successful dedoping effect. By optimizing the thickness of the dedoped PEDOT:PSS layer, we successfully enhanced the power conversion efficiency (PCE) of Sn-Pb Perovskite Solar Cells (PSCs), achieving an impressive PCE value of 22.9%. Our findings present a promising avenue for the advancement of PSCs by fine-tuning the interface between hole transport materials and the perovskite layer, offering new possibilities for high-efficiency Sn-Pb PSCs and for all perovskite tandem PSCs.
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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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