Results 81 to 90 of about 20,095 (311)
Advanced Materials Interfaces, EarlyView.A triple‐cation perovskite detector with a quasi‐interdigitated back‐contact architecture enables highly sensitive and linear EUV/soft x‐ray detection by minimizing electrode shadowing and enhancing charge extraction. Efficient interfacial carrier collection and rapid temporal response highlight the potential of back‐contact‐engineered perovskites for ...
Jingying Liu +5 more
wiley +1 more source
Hydrogen equilibration in polycrystalline silicon
Applied Physics Letters, 2007 Hydrogen equilibration in polycrystalline silicon was investigated as a function of annealing time and temperature using electron spin resonance and hydrogen effusion measurements. During a vacuum anneal at least 1.5×1021cm−3 H atoms are mobile in the lattice, however, only about 3.7×1018cm−3 H atoms passivate Si dangling bonds.
von Maydell, K., Nickel, N.H.
openaire +2 more sources
Advanced Materials Technologies, EarlyView.The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz +5 more
wiley +1 more source
Thin-Film Silicon in Photovoltaics: The Role of Structure and Microstructure
Communications, 2006 Structure and microstructure of hydrogenated silicon thin films and the influence of the hydrogen dilution of silane plasma at the PEVCD deposition on the film properties were investigated.
Jarmila Mullerova +2 more
doaj +1 more source
A nanostructured porous silicon based drug delivery device
, 2009 Targeted and controlled delivery of therapeutic agents on demand is pivotal in realising the efficacy of many pharmaceuticals. The design and fabrication of a novel, electrically-addressable, porous structure-based drug delivery device for the controlled
Chau, Chien Fat
core
Advanced Materials Technologies, EarlyView.This work presents an innovative spin‐on SiOx‐assisted inkjet‐printed approach to form localized n+ and p+ poly‐Si/SiOx passivating contacts for high‐efficiency silicon solar cells within a single‐annealing step. The developed process results in a well‐defined interdigitated doping pattern, with unintended doping and cross‐doping concentrations ...
Jiali Wang +8 more
wiley +1 more source
International Journal of Photoenergy, 2012 The metallization grid pattern is one of the most important design elements for high-efficiency solar cells. This paper presents a model based on the unit cell approach to accurately quantify the power losses of a specialized interdigitated metallization
Peter J. Gress, Sergey Varlamov
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Micromachines, 2017 We have used spectral two-layer interferometry (STLI) imaging for estimation of the stress distribution profiles (SDPs) in thin film substrates, enabling fast and reliable all-optical methodology for the evaluation of pre-stress topography profiles in ...
Adam Inzelberg, Yoav Linzon
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Advanced Design for Weakly Coupled Resonators by Automatic Active Optimization
Advanced Materials Technologies, EarlyView.An Automatic Active Optimization (AAO) strategy integrates machine learning predictors and genetic algorithms in a closed‐loop workflow. By iteratively expanding its dataset with new discoveries, AAO overcomes the limits of conventional methods. This approach finds superior microstructural designs beyond the initial sample space. We demonstrate this on
Wei Yue +8 more
wiley +1 more source
Passivation of Poly-Si Thin Film Employing Si Self-Implantation and Its Application to TFTs
IEEE Journal of the Electron Devices Society, 2018 Silicon self-implantation technique is applied to passivate the defects in the grain boundaries of the polycrystalline silicon (poly-Si) thin film. The implantation of Si with low dose is a precise technique of introducing Si interstitials in the poly-Si
Rongsheng Chen +5 more
doaj +1 more source