Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
Organic-inorganic hybrid perovskite solar cells (PSCs) have rapidly become candidates for large scale solar deployment, due to their demonstrated lab based power conversion efficiencies of >20%, ease and diversity of processing methods and their assumed low cost. However so far little work has been done on analysing the embedded cost associated with the materials and manufacturing of PSCs. This is in part down to the varied selection of materials shown to work in each of the necessary device layers, combined with the wide ranging processing techniques that have been used to deposit the materials.
Here we present a toolbox approach to embedded cost analysis by first defining a PSC as having: A substrate, electron transport layer, perovskite active layer, hole transport medium, a cathode, with or without an interlayer. From this a material can be selected for each of the layers and a deposition method, speed and yield chosen as well as additional treatments such as thermal annealing and associated module costs such as encapsulation added. We consider five example architectures with different materials sets demonstrated in literature and compare the embedded cost for each. We demonstrate the biggest areas of embedded cost in materials and processing of PSCs and highlight areas where significant cost reduction could be achieved.
Furthermore we consider an upscaled manufacturing scenario whereby there is a cost can be reduced by increased throughput and reductions associated with bulk materials purchases. The small cost reductions seen with some materials, such as Spiro-OmeTAD, even when purchased in upscaled quantities is indicative of some potentially prohibitive costs to PSC commercialisation.
Finally we consider all potential scenarios to establish whether there are combinations of materials sets and deposition techniques already known that can achieve a target cost of 0.2£/Wp or whether the community will have to develop new strategies to bring the cost down further 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.
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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