Results 61 to 70 of about 1,589,837 (361)
The Astrophysical JournalSolar magnetic fields are closely related to various physical phenomena on the Sun, which can be extrapolated with different models from photospheric magnetograms.
Guanglu Shi +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Fluorine‐functionalized organic spacers (2F, 3F, 5F) are investigated to identify as optimal passivation agents for 3D MAPI perovskite solar cells (PSCs). The study highlights how altering fluorine positioning affects defect passivation, low‐dimensional phase (LDP) formation, and stability, emphasizing its role in molecular interactions and offering ...
Ali Semerci +15 more
wiley +1 more source
Simplified Model of the Solar Magnetic Field
The Astrophysical JournalThis paper considers a structure consisting of two rings of magnetic dipoles symmetrical relative to the equatorial plane as a possible model for the source of the solar magnetic field.
Igor G. Kosakovskij
doaj +1 more source
Probing the structure of local magnetic field of solar features with helioseismology [PDF]
, 2013 Motivated by the problem of local solar subsurface magnetic structure, we have used numerical simulation to investigate the propagation of waves through monolithic magnetic flux tubes of different size. A cluster model can be a good approximation to simulate sunspots as well as solar plage regions which are composed of an ensemble of compactly packed ...
arxiv +1 more source
Coronal Magnetic Field Topology From Total Solar Eclipse Observations [PDF]
, 2020 Measuring the global magnetic field of the solar corona remains exceptionally challenging. The fine-scale density structures observed in white light images taken during Total Solar Eclipses (TSEs) are currently the best proxy for inferring the magnetic field direction in the corona from the solar limb out to several solar radii (Rs).
arxiv +1 more source
Eruptive solar magnetic fields
, 1981 This paper considers the quasi-steady evolution of solar magnetic fields in response to gradual photospheric changes. Special interest is taken in the threshold of a sudden eruption in the solar atmosphere.
B. Low
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.The phenyl‐linked self‐assembled monolayer exhibits robust intrinsic stability and hole extraction capability compared to the alkyl‐linked counterparts, thus facilitating the device stability with T80 over 1000 h and efficiency of 19.7% in advancing organic solar cells.
Nan Zhang +11 more
wiley +1 more source
Evolution of weak solar magnetic fields
, 1985 We review studies of the evolution of weak solar magnetic fields with the Big Bear videomagnetograph. To all detectable limits, the field is clumped in small elements. The size of the smallest detectable intranetwork elements is probably 3x 1015 Mx (==3x
H. Zirin
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong +16 more
wiley +1 more source
Advanced Functional Materials, EarlyView.This work presents π–conjugated polymers based on dihydropyrazine (DHP) and ethylenedioxythiophene (EDOT), developed to produce highly conductive, flexible films for printed electronics. By optimizing the DHP and EDOT ratio, strong and compact π–π stacking is achieved, resulting in polymer films with conductivities up to 1700 S cm−1 under ambient ...
Sung Jae Jeon +3 more
wiley +1 more source