Results 131 to 140 of about 72,728 (314)

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

The impact of solar corpuscular radiation on the Earth's atmosphere: the current state of the problem

open access: yesГеофизический журнал, 2010
Review of results has been given, which approve the hypothesis that solar cosmic rays (SCR) apparently play an important role in ionization of middle and lower atmosphere and may serve as a physical intermediary in solar-terrestrial climatic ...
L. V. Raichenko
doaj   +1 more source

Solar Surface and Atmospheric Dynamics [PDF]

open access: yesSpace Science Reviews, 2013
ISSI Workshop Microphysics of Cosmic ...
openaire   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

The Carrying Capacity of the Solar Wind: Applications to Ion Escape

open access: yesThe Astrophysical Journal
We present a physically motivated analytic framework for estimating solar wind mass-loading rates from ion sources using a simplified “particles in a box” (PIB) model.
P. C. Hinton   +6 more
doaj   +1 more source

Infrared Solar Physics

open access: yesLiving Reviews in Solar Physics, 2014
The infrared solar spectrum contains a wealth of physical data about our Sun, and is explored using modern detectors and technology with new ground-based solar telescopes.
Matthew J. Penn
doaj   +1 more source

Atmospheric attenuation of solar radiation [PDF]

open access: yes, 1977
The attenuation of solar radiation by the atmosphere between the heliostat and receiver of a Central Receiver solar energy system has been computed for a number of atmospheric conditions and tower-heliostat distances. The most important atmospheric variable is found to be the atmospheric aerosol content.
openaire   +4 more sources

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal   +9 more
wiley   +1 more source

Replacement and late formation of atmospheric N2 on undifferentiated Titan by impacts

open access: yes, 2011
Saturn’s moon, Titan, has remarkable surface features—a massive N2 atmosphere and hydrological cycle of CH4—that are often compared with that of Earth^1^. However, the origin and evolution of Titan’s atmosphere remains largely
Toshihiko Kadono   +4 more
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