Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Publication date: 21st February 2018
Methyl ammonium lead iodide perovskite solar cells have been a burning topic of research in the photovoltaic community for the past 5-6 years now. The exponential rate at which the efficiency of these Solar cells has increased from a mere 3.9 % to over 22% in less than 10 years of research is commendable. Undoubtedly, the excellent opto-electronic properties associated with perovskite (absorber layer), such as a very high light absorption coefficient, balanced charge transport properties, along with good charge carrier mobility, contribute significantly towards the device performance, studying perovskite solar cell devices with different charge transport layers can help in understanding the different properties and mechanisms observed in these devices.
Charge transport layers play an important role in enhancing the performance of the perovskite solar cells. In majority of the high efficiency devices, these layers are organic. On one hand where the organic layers have shown to be contributing towards better device parameters, the challenge associated with them is that owing to their organic nature, they also contribute to environmental instability. In order to have devices with longer lifetime, there is a need to replace the organic charge transport layers with the inorganic ones.
In this work, we have fabricated devices with two different type of hole transport layers (HTLs): PEDOT: PSS (organic) and Nickel Oxide (Inorganic). The devices have an inverted structure. Two step diffusion method was adopted for the fabrication of the devices. It is well known that the substrate has a direct influence on determining the crystallinity and morphology of the perovskite layer, which further influences the device properties.Structural and optical characterizations were carried out to study the effect of these HTLs on the device performance. In addition to this, the charge carrier dynamics were also discussed by the results of the transient voltage & current measurements.
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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.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.