scholarly journals Computational Design of Mixed-Valence Tin Sulfides as Solar Absorbers

2019 ◽  
Vol 11 (28) ◽  
pp. 24867-24875 ◽  
Author(s):  
Xueting Wang ◽  
Zhun Liu ◽  
Xin-Gang Zhao ◽  
Jian Lv ◽  
Koushik Biswas ◽  
...  
Keyword(s):  
Mixed Valence ◽  
Computational Design ◽  
Solar Absorbers ◽  
Tin Sulfides

scholarly journals Mixed valence Sn doped (CH3NH3)3Bi2Br9 produced by mechanochemical synthesis

2021 ◽  
Author(s):  
Xiaohan Jia ◽  
Yuhan Liu ◽  
Robin Perry ◽  
Ivan Parkin ◽  
Robert Palgrave
Keyword(s):  
Photoelectron Spectroscopy ◽  
Room Temperature ◽  
Near Infrared ◽  
Mixed Valence ◽  
Mechanochemical Reaction ◽  
Luminescent Materials ◽  
Secondary Phases ◽  
X Ray Diffraction ◽  
X Ray ◽  
Solar Absorbers

Bismuth halides with formula A3Bi2X9, where A is an inorganic or organic cation, show desirable properties as solar absorbers and luminescent materials. Control of structural and electronic dimensionality of these compounds is important to yield materials with good light absorption and charge transport. Here we report mechanochemical reaction of (CH3NH3)3Bi2Br9 with SnBr2 at room temperature in air, yielding a material with strong absorption across the visible and near-infrared (NIR) region. We attribute this to mixed valence doping of Sn(II) and Sn(IV) on the Bi site. X-ray diffraction shows no secondary phases, even after heating at 200oC to improve crystallinity. X-ray photoelectron spectroscopy suggests the presence of Sn(II) and Sn(IV) states. A similar approach to dope Sn into the iodide analogue (CH3NH3)3Bi2I9 was unsuccessful.

Thermomagnetic effects in a two-dimensional system containing mixed valence impurities

1998 ◽  
Vol 184-185 (1-2) ◽  
pp. 1200-1203
Author(s):  
I Lyapilin
Keyword(s):  
Mixed Valence ◽  
Dimensional System ◽  
Two Dimensional ◽  
Two Dimensional System

Heisenberg and double exchange in iron mixed valence [Fe6S6]+ supercluster

1997 ◽  
Vol 90 (3) ◽  
pp. 445-463 ◽  
Author(s):  
M. CZERWINSKI ◽  
J. DĄBROWSKI
Keyword(s):  
Mixed Valence ◽  
Double Exchange

Theory for the mixed-valence state

1979 ◽  
Vol 40 (C5) ◽  
pp. C5-374-C5-374 ◽  
Author(s):  
C. M. Varma
Keyword(s):  
Valence State ◽  
Mixed Valence ◽  
Mixed Valence State

MIXED VALENCE STATE OF Sm ON THE SURFACE OF AMORPHOUS La80-xSmxAu20 ALLOYS

1980 ◽  
Vol 41 (C8) ◽  
pp. C8-799-C8-802 ◽  
Author(s):  
G. Krill ◽  
A. Amamou ◽  
A. Berrada ◽  
J. Durand ◽  
N. Hassanain
Keyword(s):  
Valence State ◽  
Mixed Valence ◽  
Mixed Valence State

PHONONS IN MIXED VALENCE COMPOUNDS

1981 ◽  
Vol 42 (C6) ◽  
pp. C6-3-C6-10 ◽  
Author(s):  
W. Kress ◽  
H. Bilz ◽  
G. Güntherodt ◽  
A. Jayaraman
Keyword(s):  
Mixed Valence ◽  
Mixed Valence Compounds

Vibronic Localization of the Electronic Pair in Polynuclear Mixed-Valence Polyoxometalates*

1996 ◽  
Vol 1 (1) ◽  
pp. 463-470
Author(s):  
J. J. Borrás-Almenar ◽  
J. M. Clemente ◽  
E. Coronado ◽  
B. S. Tsukerblat ◽  
A. V. Palii
Keyword(s):  
Mixed Valence

SELECTIVE SOLAR ABSORBERS

2012 ◽  
Vol 15 (15) ◽  
pp. 231-254 ◽  
Author(s):  
Peter Bermel ◽  
Jeongwon Lee ◽  
John D. Joannopoulos ◽  
Ivan Celanovic ◽  
Marin Soljacie
Keyword(s):  
Solar Absorbers
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