Results 141 to 150 of about 5,993 (241)

Germanium‐Based Mid‐Infrared Integrated Photonics

open access: yesLaser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini   +6 more
wiley   +1 more source

27.09%-efficiency silicon heterojunction back contact solar cell and going beyond. [PDF]

open access: yesNat Commun
Wang G   +12 more
europepmc   +1 more source

Dual‐Polarization‐Sensitive Organic Photodetectors for Real‐Time Polarimetric Imaging

open access: yesLaser &Photonics Reviews, EarlyView.
Bias‐switchable organic photodetectors with orthogonally stacked uniaxially oriented polymer layers enable dual‐polarization detection and real‐time polarimetric imaging. This scalable, template‐free strategy achieves a high dichroic ratio (>11), rapid response (>500 Hz), and detectivity up to 1013 Jones.
Jiayin Han   +7 more
wiley   +1 more source

Topological Photonic Devices and Circuits at Terahertz Frequencies

open access: yesLaser &Photonics Reviews, EarlyView.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor   +3 more
wiley   +1 more source

The Development of Carbon/Silicon Heterojunction Solar Cells through Interface Passivation. [PDF]

open access: yesAdv Sci (Weinh)
Chen B   +12 more
europepmc   +1 more source

Recent advances in Joule‐heating synthesis of functional nanomaterials for photo and electrocatalysis

open access: yesPhotoMat, EarlyView.
This paper presents a comprehensive overview of recent advancements in Joule‐heating synthesis of photo and electrocatalysts, emphasizing its benefits and applications. The objective is to offer an effective strategy for enhancing the diversity and performance of catalytic materials.
Jiaqi Li   +4 more
wiley   +1 more source

Organic photovoltaics: 30 years of the bulk heterojunction

open access: yesPolymer International, EarlyView.
Three decades of the bulk heterojunction in organic photovoltaics, highlighting advances in materials, morphology and processing, enabling >20% efficiencies, and outlining stability and scalability challenges driving emerging alternative architectures.
Rachel C. Kilbride   +2 more
wiley   +1 more source

Understanding UV‐Induced Degradation Mechanisms in SHJ Solar Cells and Their Reversibility: The Role of Hydrogen and Doping

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
This study investigates the UV‐induced degradation of silicon heterojunction cell precursors by isolating the impact of subcell layers under controlled UVA and UVB irradiation. Front hydrogenated amorphous silicon (i/n)a‐Si:H selective layers are identified as key degradation sites, leading to significant losses in minority carrier lifetime and iVoc ...
Hugo Lajoie   +7 more
wiley   +1 more source

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