scholarly journals Экситонные спектры объемных кристаллов BiI-=SUB=-3-=/SUB=-

2022 ◽  
Vol 64 (1) ◽  
pp. 102
Author(s):  
В.Ф. Агекян ◽  
А.Ю. Серов ◽  
Н.Г. Философов
Keyword(s):  
Oscillator Strength ◽  
Absorption Spectra ◽  
Wide Temperature Range ◽  
Temperature Range

The luminescence, reflection and absorption spectra of layered BiI3 crystals on samples of different quality are studied in a wide temperature range. Based on the data obtained, the parameters of the direct exciton, which has a high oscillator strength, are estimated

Synthesis and properties of macrodiscotic triphenylenophthalocyanines

2009 ◽  
Vol 13 (02) ◽  
pp. 235-246 ◽  
Author(s):  
Andrew N. Cammidge ◽  
Hemant Gopee
Keyword(s):  
Absorption Spectra ◽  
Wide Temperature Range ◽  
Liquid Crystalline ◽  
Molecular Profile ◽  
Temperature Range ◽  
Basic Properties ◽  
Flat Disk ◽  
Benzene Rings

Phthalocyanines present a flat, disk-like molecular profile and suitably substituted derivatives show discotic liquid crystalline behavior. Extension of the molecular π-system through benzofusion perturbes the phthalocyanine's basic properties, most notably shifting the absorption to longer wavelength. This paper describes our synthesis of triphenylenophthalocyanines where the benzene rings of phthalocyanines are replaced by triphenylene units. The resulting materials are macrodiscotic in nature. They show red-shifted absorption spectra and columnar mesophase behavior over a wide temperature range.

Fibre-optic temperature sensor with wide temperature range characteristics

1987 ◽  
Vol 134 (5) ◽  
pp. 291 ◽  
Author(s):  
K.T.V. Grattan ◽  
J.D. Manwell ◽  
S.M.L. Sim ◽  
C.A. Willson
Keyword(s):  
Wide Temperature Range ◽  
Temperature Sensor ◽  
Fibre Optic ◽  
Temperature Range

Enabling highly reversible sodium metal cycling across a wide temperature range with dual-salt electrolytes

2021 ◽  
Author(s):  
Akila C. Thenuwara ◽  
Pralav P. Shetty ◽  
Neha Kondekar ◽  
Chuanlong Wang ◽  
Weiyang Li ◽  
...  
Keyword(s):  
Wide Temperature Range ◽  
High Energy ◽  
Liquid Electrolyte ◽  
Metal Cycling ◽  
Temperature Range ◽  
Sodium Metal ◽  
Wide Range

A new dual-salt liquid electrolyte is developed that enables the reversible operation of high-energy sodium-metal-based batteries over a wide range of temperatures down to −50 °C.

Magnetic anomalies, chemical and magnetic properties at wide temperature range (15–1000 K) in LiSrxFe5-xO8 (x = 0, 0.025, 0.05)

2021 ◽  
Vol 859 ◽  
pp. 158290
Author(s):  
S. Udhayakumar ◽  
G. Jagadish Kumar ◽  
E. Senthil Kumar ◽  
M. Navaneethan ◽  
K. Kamala Bharathi
Keyword(s):  
Magnetic Properties ◽  
Wide Temperature Range ◽  
Magnetic Anomalies ◽  
Temperature Range
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