Results 241 to 250 of about 613,352 (286)

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

open access: yesAdvanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally   +2 more
wiley   +1 more source

A Colloidal Quantum Dot Thermistor and Bolometer

open access: yesAdvanced Materials, EarlyView.
This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar   +7 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

open access: yesAdvanced 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

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

open access: yesAdvanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz   +17 more
wiley   +1 more source

Efficient Quantum Information Processing via Quantum Compressions

International Journal of Theoretical Physics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Deng, Y., Luo, M. X., Ma, S. Y.
openaire   +1 more source

Quantum efficiency of InSbBi quantum dot photodetector

Applied Optics, 2015
An InSb(1-x)Bi(x) quantum dot (QD) photodetector was studied in this work. First, the quantum efficiency (QE) was modeled for this structure where the relations of electron and hole densities and their contribution to current density are derived. The absorption of p-, n- and depletion regions were calculated before specifying their contribution to QE ...
Sana N, Dwara, Amin H, Al-Khursan
openaire   +2 more sources

The quantum efficiency of photosynthesis

Biochimica et Biophysica Acta, 1950
Abstract Photosynthesis is a unique endothermic photochemical reaction in which chemical energy is gained from visible light energy by the combined action of several quanta. Nothing similar is known in the nonliving world. It was first reported a quarter of a century ago 1 that in photosynthesis the greater part of the absorbed visible light energy ...
Otto Warburg   +3 more
openaire   +2 more sources

Internal Quantum Efficiency

2017
In the first part, we have introduced experimental results of the internal quantum efficiency (IQE) droop depending on temperature in both the electroluminescence and the resonant photoluminescence. The IQE droop mechanisms ever reported have been reviewed. An inherent origin of the efficiency droop has been suggested as the saturation of the radiative
openaire   +1 more source

Quantum Efficiency of Human Vision

Journal of the Optical Society of America, 1959
The detective quantum efficiency for foveal vision is computed from the flash perception data of Blackwell and McCready. The detective quantum efficiency is identical with the concept of quantum efficiency introduced by Rose in 1946, and is defined as the square of the ratio of the smallest possible threshold to the observed threshold, where the ...
openaire   +2 more sources

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