Results 81 to 90 of about 31,787 (267)

Excitons with charge transfer in sncl2-phthalocyanine films [PDF]

open access: yesISSN 0503-1265. Ukr. J. Phys. 2007. V. 52, N 1 pp. 53-59, 2014
The absorption, modulated photoreflectance, and photovoltage spectra of dichlorotin phthalocyanine (SnCl2Pc) films have been measured. These films are thermally deposited in vacuum at different substrate temperatures. The energies of charge-transfer-states (CT-states) in SnCl2Pc films (1.35, 1.52, and 2.05 eV) and the diffusion length of Frenkel ...
arxiv  

Van Der Waals Hybrid Integration of 2D Semimetals for Broadband Photodetection

open access: yesAdvanced Materials, EarlyView.
Advanced broadband photodetector technologies are essential for military and civilian applications. 2D semimetals, with their gapless band structures, high mobility, and topological protection, offer great promise for broadband PDs. This study reviews the latest advancements in broadband PDs utilizing heterostructures that combine 2D semimetals with ...
Xue Li   +9 more
wiley   +1 more source

Thermal Processing Creates Water‐Stable PEDOT:PSS Films for Bioelectronics

open access: yesAdvanced Materials, Volume 37, Issue 13, April 2, 2025.
Instead of using chemical cross–linkers, it is shown that PEDOT:PSS thin films for bioelectronics become water‐stable after a simple heat treatment. The heat treatment is compatible with a range of rigid and elastomeric substrates and films are stable in vivo for >20 days.
Siddharth Doshi   +16 more
wiley   +1 more source

A survey of the mycobiota of a natural Karoo pasture

open access: yesBothalia: African Biodiversity & Conservation, 1997
The survey of a natural Karoo pasture from 1978 to 1982 showed that a wealth and variety of fungi were present in the semidesert environment. Hyphomycetes and Coelomycetes represented 45.8% and 34.6% respectively of the taxa identified.
C. Roux, K. T. van Warmelo
doaj   +1 more source

Advances in Photonic Materials and Integrated Devices for Smart and Digital Healthcare: Bridging the Gap Between Materials and Systems

open access: yesAdvanced Materials, EarlyView.
This article summarizes significant technological advancements in materials, photonic devices, and bio‐interfaced systems, which demonstrate successful applications for impacting human healthcare via improved therapies, advanced diagnostics, and on‐skin health monitoring.
Seunghyeb Ban   +5 more
wiley   +1 more source

Photosensitive Strip RETHGEM [PDF]

open access: yesarXiv, 2008
An innovative photosensitive gaseous detector, consisting of a GEM like amplification structure with double layered electrodes (instead of commonly used metallic ones) coated with a CsI reflective photocathode, is described. In one of our latest designs, the inner electrode consists of a metallic grid and the outer one is made of resistive strips; the ...
arxiv  

A Charge‐Coupled Phototransistor Enabling Synchronous Dynamic and Static Image Detection

open access: yesAdvanced Materials, EarlyView.
A charge‐coupled phototransistor is presented that uses dual photosensitive capacitors to provide gate voltage to a single transistor channel, enabling simultaneous capture of dynamic and static information, surpassing existing DAVIS technology. This charge‐coupled phototransistor paves the way for the development of high‐performance, low‐power, and ...
Shun Feng   +13 more
wiley   +1 more source

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

Micro‐ and Nano‐Bots for Infection Control

open access: yesAdvanced Materials, EarlyView.
This review presents a strategic vision for integrating micro‐ and nanobots in the pipeline for infection diagnosis, prevention, and treatment. To develop these robots as a practical solution for infection management, their design principles are clarified based on their propulsion mechanisms and then categorized infection management domains based on ...
Azin Rashidy Ahmady   +5 more
wiley   +1 more source

Ketoprofen, an emerging photoallergen

open access: yesJournal of Medical Science, 2014
Introduction. Ketoprofen, which belongs to the group of non-steroidal anti-inflammatory drugs (NSAIDs), is an emerging photoallergen. Especially its topical use may be a cause of drug-induced photosensitivity. Material and methods. We report two cases of
Ewelina Bogumiła Zuba   +4 more
doaj   +1 more source

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