Results 201 to 210 of about 21,643 (260)

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

Advanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu, Yingxue An, Luigi Fabiano, Qifan Li, Qingqing Wang, Feng Zhang, Wenlong Jin, Miao Xiong, Junpeng Ji, Ugo Bruno, Grzegorz Greczynski, Grazia Maria Lucia Messina, Xianjie Liu, Chi‐Yuan Yang, Simone Fabiano   +14 more
wiley   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Monitoring of Caffeine Consumption Effect on Skin Blood Properties by Diffuse Reflectance Spectroscopy.

Physiol Res
Milanic M, Hren R, Stergar J, Simoncic U.   +3 more
europepmc   +1 more source

Quantitative estimation of optical properties in bilayer media within the subdiffusive regime using a tilted fiber-optic probe in diffuse reflectance spectroscopy, part 1: a theoretical framework for designing probe geometry. [PDF]

J Biomed Opt
De Tillieux P, Baillot M, Marquet P.
europepmc   +1 more source

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Diffuse Reflectance Spectroscopy: A Comparison of the Theories

Applied Optics, 1975
The various theories of diffuse reflectance spectroscopy are compared mathematically, and it is concluded that the modified particle model theory is probably the most nearly correct. If so, the comparison shows that the simple, easily applied simplified particle model theory is approximately valid for relative index of refraction values of 1.5-2.5 and ...
E L Simmons
exaly   +3 more sources

Principles and Techniques of Diffuse-Reflectance Spectroscopy

Angewandte Chemie International Edition in English, 1963
AbstractThe prerequisites for applicability of the Kubelka‐Munk theory of diffuse reflectance for obtaining characteristic color curves of powders are discussed, and some experimental support for the theory is given. Methods are described for eliminating surface reflection, which is always superimposed upon the diffuse reflection and which therefore ...
G Kortüm
exaly   +2 more sources

Diffuse-reflectance spectroscopy in the infrared

Talanta, 1982
The theory, and the problems encountered in the development of diffuse-reflectance spectroscopy in the infrared region as an analytical technique, are reviewed. The introduction of Fourier-transform infrared spectrometers has eliminated the difficulty of detecting small scattered intensities, and diffuse-reflectance measurement is now a routine method.
H, Maulhardt, D, Kunath
openaire   +2 more sources

Specular Reflection and Diffuse Reflectance Spectroscopy of Soils

Applied Spectroscopy, 2005
Studies on the occurrence and effects of specular reflection in mid-infrared spectra of soils have shown that distortions due to specular reflection occur for both organic (humic acid) and non-organic fractions (carbonates, silica, ashed fraction of soil). The results explain why the spectra of CaCO 3
James B, Reeves, Barry A, Francis, Stephen K, Hamilton   +2 more
openaire   +2 more sources

Diffuse reflectance patterns in cervical spectroscopy

Gynecologic Oncology, 2005
Our laboratory seeks to develop minimally invasive cost-effective methods to improve screening and detection of curable precursors to cervical cancer. Previously, we have presented pilot studies that assess the diagnostic power of auto-fluorescence and diffuse reflectance spectroscopy.
Nena M, Marín, Andrea, Milbourne, Helen, Rhodes, Thomas, Ehlen, Dianne, Miller, Lou, Benedet, Rebecca, Richards-Kortum, Michele, Follen   +7 more
openaire   +2 more sources

Diffuse reflectance spectroscopy of powders

Analytica Chimica Acta, 1990
Abstract Diffuse reflectance (DRIFT) spectra in the mid-IR region, especially of inorganic powders, often reveal inverted or derivative-like structures (“reststrahlen” bands) which make their straightforward interpretation in terms of the Kubelka-Munk theory difficult.
T. Eickhoff, P. Grosse, W. Theiss
openaire   +2 more sources