Results 161 to 170 of about 155,544 (195)

Ultrahigh detectivity ultraviolet photodetector based on orthorhombic phase CsPbI3 microwire using temperature self-regulating solar reactor

Solar Energy Materials and Solar Cells, 2020
In this study, a temperature self-regulating solar reactor based on VO2 thermochromic coating is demonstrated. The temperature of solar reactor can be stabilized at 68.8 °C, which is corresponded to the critical point of metal-to-insulator transition of ...
Shusheng Pan, Ziyue Rao, Yujie Wu, Zhiyu Liu, Jun Ge, Sha Zhang   +5 more
semanticscholar   +1 more source

PROBING THE SOLAR WIND WITH COMETARY X-RAY AND FAR-ULTRAVIOLET EMISSION

Photonic, Electronic and Atomic Collisions, 2006
In this contribution the key role of charge transfer processes in modelling and understanding the far-ultraviolet and X-ray emission induced by interaction of solar wind minor ions with cometary atmospheres is treated. The most relevant collision partners and energies are identified. In addition, the existence or lack of fundamental data is addressed.
Hoekstra, R., Bodewits, D., Morgenstern, R., Lisse, C. M., Tielens, A. G. G. M.   +4 more
openaire   +2 more sources

On the Failure of Standard Emission Measure Analysis for Solar Extreme-Ultraviolet and Ultraviolet Irradiance Spectra

The Astrophysical Journal, 1995
We perform emission measure analysis of new and accurate UV (λ > 1200 A) and extreme-ultraviolet (EUV) (λ ≤ 1200 A) irradiance ("Sun-as-a-star") emission-line spectra of the Sun. Our data consist of (1) daily averaged UV irradiances from the SOLSTICE on the UARS spacecraft and (2) EUV irradiances obtained on the same date from a m spectrograph flown on
P. G. Judge, T. N. Woods, P. Brekke, G. J. Rottman   +3 more
openaire   +1 more source

Relationship of the nightglow 630.0nm emission intensity to the solar extreme ultraviolet

Journal of Atmospheric and Solar-Terrestrial Physics, 2013
Abstract It is well known that the 630.0 nm nightglow emission intensity at mid latitudes increased more than twofold in periods of maximum sunspot activity. It is assumed that this phenomenon is caused by variations in solar ultraviolet radiation intensity in solar activity cycles ( Fishkova, 1983 ).
I.B. Ievenko, V.N. Alexeyev, S.G. Parnikov   +2 more
openaire   +1 more source

Efficient near ultraviolet to near infrared downconversion photoluminescence of La2GeO5: Bi3+, Nd3+ phosphor for silicon-based solar cells

Optical materials (Amsterdam), 2018
Recently, downconversion materials have attracted considerable research due to large promotion of the efficiency of silicon-based solar cells through the absorption of solar radiation via quantum cutting.
Jianming Li, Shaoan Zhang, Haoming Luo, Z. Mu, Zhenzhang Li, Qingping Du, Junqin Feng, Fugen Wu   +7 more
semanticscholar   +1 more source

Influence of solar ultraviolet radiation intensity of 630 nm nightglow emission excitation

Geomagnetism and Aeronomy, 2011
It is well known that the 630.0 nm nightglow emission intensity at mid-latitudes increased more than twofold in periods of maximum sunspot activity. It is assumed that this phenomenon is caused by variations in solar ultraviolet radiation intensity in solar activity cycles (Fishkova, 1983).
I. B. Ievenko, V. N. Alekseev, S. G. Parnikov   +2 more
openaire   +1 more source

Dual‐Functional Triangular‐Shape Micro‐Size Light‐Emitting and Detecting Diode for On‐Chip Optical Communication in the Deep Ultraviolet Band

Laser & Photonics Reviews
Light‐emitting diodes and photodiodes, often acting as transmitters and receivers, are two key optical components for constructing an optical communication system.
Huabin Yu, Shudan Xiao, Muhammad Hunain Memon, Yuanmin Luo, Rui Wang, Dong Li, Chao Shen, Haiding Sun   +7 more
semanticscholar   +1 more source

Molecular engineering of contact interfaces for high-performance perovskite solar cells

Nature Reviews Materials, 2022
Furkan H Isikgor, Shingis Zhumagali, Iain McCulloch   +2 more
exaly  

INVESTIGATION OF M3.0 CLASS SOLAR FLARE IN THE MICROWAVE AND ULTRAVIOLET EMISSION

Proceedings of the XVIII Conference of Young Scientists “Interaction of fields and radiation with matter”
Analysis of the M3.0 class solar flare on 2023-04-06 was performed using the ultraviolet (Solar Dynamics Observatory/Atmospheric Imaging Assembly –– SDO/AIA) and microwave (Siberian Radio Heliograph –– SRH) data. Two cases of slow magnetoacoustic waves triggered by the flare were detected in SDO/AIA 131 Å channel.
R.R. Karakotov, A.A. Kuznetsov, S.A. Anfinogentov   +2 more
openaire   +1 more source

Stability challenges for the commercialization of perovskite–silicon tandem solar cells

Nature Reviews Materials, 2023
Leiping Duan, Kylie R Catchpole
exaly