Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
Publication date: 20th April 2022
Phthalocyannines are versatile molecules used in many technologies such as photonics and photovoltaics. Spiro-OMeTAD is popularly employed as HTL in conventional n-i-p architecture perovskite solar cells (PSCs) for delivering promising efficiencies in the devices. However, the tedious manufacturing/ synthesis procedure followed by rigorous purification makes it an HTL for big budgets. Also, spiro-OMeTAD and similar molecules are solution-processed exclusively in chlorinated solvents- CB and dichlorobenzene (DCB) or toluene. Thus, the solvent for processing is one of the many reasons to be addressed for going green in PSC fabrication. This work is mainly focused on the established macrocyclic hole transport materials, such as tetra-tert-butyl phthalocyanines and replacing the conventionally used solvents with greener alternatives to make the devices more sustainable and possibly cost-effective. We have chosen glycerol-anisole mixtures to synthesize three state-of-the-art tert-butyl phthalocyanines Zn, Cu, Co (TBU4-Cu, TBU4-Zn, TBU4-Co) materials which are investigated as HTLs for planar n-i-p perovskite solar cells and green solvent anisole as deposition solvents. HTLs fabricated with anisole show PCEs of TBU4-Zn, Co, Cu 9.57%, 7.53%, 9.97% respectively and HTLs with CB show PCEs of TBU4-Zn, Co, Cu 8.40%, 7.56%, 6.75% respectively. So switching to anisole from CB doesn't alter PCEs significantly.
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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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