Results 131 to 140 of about 4,034,717 (373)
Recent Advances in Wide‐Bandgap Perovskite Solar Cells
Advanced Materials, EarlyView.Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley +1 more source
The Astrophysical Journal Supplement SeriesWe collected near-infrared spectra of 65 cool stars with the NASA Infrared Telescope Facility and analyzed them to calculate accurate metallicities and stellar parameters.
Rebecca Gore +10 more
doaj +1 more source
SEARCHING FOR SCATTERERS: HIGH-CONTRAST IMAGING OF YOUNG STARS HOSTING WIDE-SEPARATION PLANETARY-MASS COMPANIONS [PDF]
, 2016 We have conducted an angular differential imaging survey with NIRC2 at Keck in search of close-in substellar companions to a sample of seven systems with confirmed planetary-mass companions (PMCs) on wide orbits (>50 au).
M. Bryan +7 more
semanticscholar +1 more source
Advanced Materials, EarlyView.Mechanochromic hydroxypropyl cellulose (HPC) integrated with microfluidic devices creates scalable, eco‐friendly reflective color displays. We demonstrate mechanochromic displays with 500 µm pixel size and 5Hz switching rates with room for optimisation. The proposed mechanochromic HPC displays are an initial step toward more environmentally responsible
Charles H. Barty‐King +4 more
wiley +1 more source
Evidence for a planetary mass third body orbiting the binary star KIC 5095269 [PDF]
, 2017 In this paper, we report the evidence for a planetary mass body orbiting the close binary star KIC 5095269. This detection arose from a search for eclipse timing variations among the more than 2,000 eclipsing binaries observed by Kepler.
A. K. Getley +3 more
semanticscholar +1 more source
High-energy irradiation and mass loss rates of hot Jupiters in the solar neighborhood
, 2015 Giant gas planets in close proximity to their host stars experience strong irradiation. In extreme cases photoevaporation causes a transonic, planetary wind and the persistent mass loss can possibly affect the planetary evolution. We have identified nine
Czesla, S. +3 more
core +1 more source
Electric Field Driven Soft Morphing Matter
Advanced Materials, EarlyView.This study presents soft morphing matter robots that exhibit extremely high morphological adaptability and complex multimodal electric field response. They can undergo large, controlled body deformation and show complex locomotion on different terrains under the manipulation of external electric fields, making a significant step beyond current ...
Ciqun Xu +3 more
wiley +1 more source
Comprehensive Parameter Determination of Exoplanets through Asteroseismic Host Star Constraints
The Astrophysical JournalThis study develops a robust framework for exoplanet characterization by leveraging asteroseismic constraints on host stars. Using precise photometric data from missions such as Kepler and TESS, we derive stellar parameters, including mass, radius, and ...
Wen-Xu Lin +7 more
doaj +1 more source
Mid-infrared characterization of the planetary-mass companion ROXs 42B b [PDF]
, 2017 We present new Keck/NIRC2 3–5 μ m infrared photometry of the planetary-mass companion to ROXS 42B in L ′, and for the first time in Brackett-α (Brff) and in M s -band.
S. Daemgen +12 more
semanticscholar +1 more source
Advanced Materials, EarlyView.The larger ion size of Na+ versus with Li+ has a pronounced impact on the intercalation chemistry of disordered rocksalt cathode materials. On charge, the disordered rocksalt structure is retained in Li2MnO2F but it is lost in Na2MnO2F resulting in extensive amorphization.
Nicole C. Mitchell +9 more
wiley +1 more source