Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
As the age of IOT and portable devices applications is coming, energy harvesting under indoor or dim-light environment is becoming critical. Dye-sensitized solar cell (DSC), a technology that performs extremely well under these conditions has found unique advantages for its utilization in such scenario. In this report, we investigate the use of [Co(bpy)3]3+/2+ (bpy=2,2’-bipyridine) redox mediators in MPN (3-methoxypropionitrile) solvent under low light (200 lux) condition. The effect of redox concentration, electrolyte additives and pore size of titania are scrutinized. Under the optimized condition, the power density output under 200 lux achieved 12 µW/cm2, which outperformed the best device using the conventional uses I-/I3- redox mediators illuminated with the same light intensity. Co electrolyte is well known for its advantages in minimizing the energy redundancy for charge separation. On the other hand, the issue of diffusion limit will not be crucial at low-light condition. Results of I-V characteristic, IPCE, and electrochemical impedance spectroscopy (EIS) are applied to analyze the working mechanism. We believe the information revealed in our study is useful for developing further indoor applications in the future.
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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.
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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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