Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV19)
Publication date: 6th February 2020
Flexible photovoltaics has attracted widespread attention due to the combination of excellent physical properties, including being thin, light weight, conformable to curved surfaces and compatible with roll-to-roll manufacturing [1]. The possibility of integrating this type of PV on many surfaces and products seamlessly makes them a prime candidate for application as indoor light harvesters to power electronic products such as wireless sensors, consumer electronics, internet of things applications [2]. Currently, the best power conversion efficiencies (PCE) under typical white LED indoor illumination of 200 lx and 400 lx of PV developed on poly ethylene terephthalate substrates is between 12 and 13% [3]. Here we present a breakthrough in performance for indoor PV developing flexible perovskite solar cells (PSCs) on flexible glass that for the first time surpass the 20% PCE value at 200 lx and 22% at 400 lx (20.6% PCE, corresponding to 16.7 µW cm-2 MPD, and 22.6% PCE corresponding to 35.0 µW cm-2 MPD, at 200 lx and 400 lx respectively). These values correspond to the highest reported values for any photovoltaic technology on flexible substrates tested in indoor conditions by far. Superior performances of FG-based devices are attributed to the opto-electrical properties of the substrates, such as the average transmittance of 81.22% in the visible spectra, which is ~15% higher than commercial PET/ITO used in this research, and a sheet resistance of 13 sq-1 which is ~13% lower than that of PET/ITO. Performances are even better than same architectures on rigid glass substrates as a result of higher transparencies/photocurrents. Compared to PET-based PSCs, devices on FG show low recombination currents, as evident from the analysis of the dark currents (Jon/Joff ~104), by lower series resistances and higher shunt resistances as extrapolated from the I-V curves at low light levels. Additionally, un-encapsulated FG-PSCs show improved stability compared to their PET counterparts. These results show that flexible PSCs fabricated on FG can become prime candidates as energy harvesters in indoor environments and as power supplies for light-weight low-power devices.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
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.