Results 121 to 130 of about 782,529 (256)

Mobility‐Lifetime Products in Organic Infrared Photodiodes with Peak Absorption at 1550 nm

open access: yesAdvanced Electronic Materials, EarlyView.
This study analyzes the mobility‐lifetime products in organic infrared photodiodes with different donor‐to‐acceptor ratios to examine charge collection performance. Abstract Infrared photodiodes based on organic semiconductors are promising for low‐cost sensors that operate at room temperature. However, their realization remains hampered by poor device
Bogyeom Seo   +7 more
wiley   +1 more source

Extended Probabilities: Mathematical Foundations

open access: yes, 2009
There are important problems in physics related to the concept of probability. One of these problems is related to negative probabilities used in physics from 1930s. In spite of many demonstrations of usefulness of negative probabilities, physicists looked at them with suspicion trying to avoid this new concept in their theories. The main question that
openaire   +2 more sources

Digital‐Analog Integrated Optoelectronic Memristor Based on Carbon Dot for Ternary Opto‐Electronic Logic and Sen‐Memory Applications

open access: yesAdvanced Electronic Materials, EarlyView.
Herein, the development of a protective face mask based on a hierarchically porous cerium metal‐organic framework intensifying the bacterial entrapment ability and catalytic ROS generation at ambient condition is presented. It presents almost 100% antimicrobial efficacies for different bacteria even though in insufficient light (e.g.
Jiaqi Xu   +7 more
wiley   +1 more source

Traps, Tail States and Their Consequences on the Open‐circuit Voltage in Organic Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
It is found that the light‐intensity dependent low‐temperature roll‐off of open‐circuit voltage in organic solar cells is explained by the intrinsic disorder in these devices, which can be either described by the full Gaussian density of states or approximated by a two‐level system, which allows for a more intuitive interpretation.
Tobias Krebs   +2 more
wiley   +1 more source

Determining Exciton Diffusion Length in Organic Semiconductors: Unifying Macro‐ and Microscopic Perspectives

open access: yesAdvanced Energy Materials, EarlyView.
Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang   +12 more
wiley   +1 more source

Transport Resistance Dominates the Fill Factor Losses in Record Organic Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
Organic photovoltaics are a promising solar cell technology, but even the record devices with 20% efficiency have significant fill factor losses due to low active layer conductivities. In this Perspective, the authors describe the origin of these losses, discuss experimental methods for their quantification, and explain how to minimize them to optimize
Chen Wang   +6 more
wiley   +1 more source

Further expansion and confirmation of phenotype in rare loss of YWHAE gene distinct from Miller–Dieker syndrome

open access: yesAmerican Journal of Medical Genetics Part A, Volume 191, Issue 2, Page 526-539, February 2023., 2023
Abstract Deletion of 17p13.3 has varying degrees of severity on brain development based on precise location and size of the deletion. The most severe phenotype is Miller–Dieker syndrome (MDS) which is characterized by lissencephaly, dysmorphic facial features, growth failure, developmental disability, and often early death.
Elizabeth K. Baker   +9 more
wiley   +1 more source

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