Results 101 to 110 of about 45,220 (265)

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 near-infrared interferometric survey of debris disc stars. III. First statistics based on 42 stars observed with CHARA/FLUOR [PDF]

open access: yes, 2013
peer reviewedContext. Dust is expected to be ubiquitous in extrasolar planetary systems due to the dynamical activity of minor bodies. Inner dust populations are, however, still poorly known due to the high contrast and small angular separation with ...
Mérand, Antoine   +63 more
core   +1 more source

Asteroseismology of solar-type stars with K2

open access: yes, 2015
Accepted for publication in PASP; 16 pages, 2 ...
Chaplin, W. J.   +46 more
openaire   +2 more sources

Secular Stability of a Solar-Type Star

open access: yesThe Astrophysical Journal, 1973
We invesiigate the secular stability of a main-sequence star of 1 Me taking into account the relevant reaction kinetics of the proton-proton chain. The secular eigenvalues fall into two classes: a discrete thermal spectrum'' (related to the classical secular spectrum obtained under the assumption of /sup 3/He equilibrium) and a continuous kinetic ...
Richard J. Defouw   +2 more
openaire   +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

Rotation among solar-type stars [PDF]

open access: yes, 1994
The net result is that FRESIP will produce high quality rotational data for a large (and essentially volume-limited) sample of solar-type stars. Moreover, the observed slight changes in rotation period will indicate the nature and degree of differential ...
Soderblom, D.
core   +1 more source

Spectroscopic observations of Kepler/TESS solar-type supeflare stars [PDF]

open access: yes, 2018
Recent Kepler-space-telescope observations found more than 1000 superflares on 300 solar-type stars (e.g., Maeahra+2012 Nature; Shibayama+2013 ApJS). Many of the superflare stars show quasi-periodic brightness variations with the typical period of 1-30 ...
Hawley Suzanne   +19 more
core   +1 more source

On ancient solar-type stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
Klaus Fuhrmann, Rolf Chini
openaire   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti   +11 more
wiley   +1 more source

Magnetic Doppler imaging of early-type stars [PDF]

open access: yes, 2010
Doppler imaging of early-type magnetic stars is the most advanced method to interpret their line profile variations. DI allows us to study directly a complex interplay between chemical spots, magnetic fields, and the mass loss.
Iosif Romanyuk   +7 more
core   +1 more source

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