Browsing CSEM Archive by Title
Now showing items 407-426 of 981
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High-Bandgap Perovskite Materials for Multijunction Solar Cells
(2018)High-bandgap (>1.7 eV) mixed halide perovskites for multijunction solar cells are usually affected by photoinduced phase segregation, which triggers subbandgap defects that are detrimental to the open-circuit voltage. While ... -
High-pulse energy-stabilized passively mode-locked external cavity inverse bow-tie 980nm laser diode for space applications
(2018-02-19)We report on multi-section inverse bow-tie laser producing mode-locked pulses of 90 pJ energy and 6.5 ps width (895 fs after compression) at 1.3 GHz pulse repetition frequency (PRF) and consuming 2.9 W of electric power. ... -
High-repetition-rate frequency comb up- and down-conversion in synchronously driven ((2))(chi) microresonators
(2019)Optical frequency combs are a key technology for optical precision measurements. So far, most frequency combs operate in the near-infrared regime (NIR). Many applications, however, require combs in the ultraviolet (UV), ... -
High-resolution remote thermometry and thermography using luminescent low-dimensional tin-halide perovskites
(2019)Although metal-halide perovskites have recently revolutionized research in optoelectronics through a unique combination of performance and synthetic simplicity, their low-dimensional counterparts can further expand the ... -
Highly Mismatched, Dislocation-Free SiGe/Si Heterostructures
(2016)An experiment has demonstrated that truly dislocation free SiGe crystals with widths of at least 5?m can be epitaxially grown on Si substrates by applying the compositional grading developed for layers to 3D structures. ... -
How Building and District Algorithms Enhance Renewable Energy Integration in Energy Markets
(2019)This study shows the results of the SABINA H2020 project, which analyzes the effect of two level optimization algorithms to increase the consumption of renewable power sources and reduce greenhouse gas emissions. First, ... -
Human Energy Expenditure Models: Beyond State-of-the-Art Commercialized Embedded Algorithms
(2014)In the present study, we propose three new energy expenditure (EE) methods and evaluate their accuracy against state-of-the-art EE estimation commercialized devices. To this end, we used several sensors on 8 subjects to ... -
Human Vital Signs Monitoring Outside Clinical Settings
(2011-09-27) -
Hybrid battery-supercapacitor system for full electric forklifts
(2019)Despite the yearly rise in the market quota of full electric vehicles, the main limitations on the deployment of electric vehicles are the real performances of the battery storage during operation. In this study, the authors ... -
Hybrid lightweight and flexible circuit boards for satellites
(2018)Printed electronics is an emerging industry facilitating widespread, cost-effective electronics for applications such as flexible displays, printed photovoltaics, Organic Light Emitting Diodes, etc. Printed electronics ... -
Hybrid polymer microlens arrays with high numerical apertures fabricated using simple ink-jet printing technique
(2011-06-01)Microlens arrays fabricated by a direct ink-jet printing of UV-curable hybrid polymer are reported. A periodic pattern of polymer drops was ink-jet printed on the surface-treated glass substrate and cured in the UV-light. ... -
Hybrid sequential deposition process for fully textured perovskite/silicon tandem solar cells
(2018)Tandem solar cells that feature a high-bandgap perovskite cell on top of a lower bandgap silicon cell have the potential to reach efficiencies > 30%. Here, we present a versatile hybrid deposition method that yields conformal ...