scholarly journals Polymorphism of low dimensional boron nanomaterials driven by electrostatic gating: a computational discovery

Nanoscale ◽  
2020 ◽  
Vol 12 (19) ◽  
pp. 10543-10549
Author(s):  
Yalong Jiao ◽  
Fengxian Ma ◽  
Jinxing Gu ◽  
Zhongfang Chen ◽  
Aijun Du

We discovered the structural diversity of 2D boron sheets and 1D ribbons triggered by electrostatic gating.

ChemInform ◽  
2005 ◽  
Vol 36 (15) ◽  
Author(s):  
Konstantin A. Brylev ◽  
Guillaume Pilet ◽  
Nikolai G. Naumov ◽  
Andre Perrin ◽  
Vladimir E. Fedorov

2005 ◽  
Vol 2005 (3) ◽  
pp. 461-466 ◽  
Author(s):  
Konstantin�A. Brylev ◽  
Guillaume Pilet ◽  
Nikolai�G. Naumov ◽  
Andre Perrin ◽  
Vladimir�E. Fedorov

Molecules ◽  
2022 ◽  
Vol 27 (1) ◽  
pp. 280
Author(s):  
Navindra Keerthisinghe ◽  
Matthew S. Christian ◽  
Anna A. Berseneva ◽  
Gregory Morrison ◽  
Vladislav V. Klepov ◽  
...  

The solvothermal synthesis, structure determination and optical characterization of five new metastable halometallate compounds, [1,10-phenH][Pb3.5I8] (1), [1,10-phenH2][Pb5I12]·(H2O) (2), [1,10-phen][Pb2I4] (3), [1,10-phen]2[Pb5Br10] (4) and [1,10-phenH][SbI4]·(H2O) (5), are reported. The materials exhibit rich structural diversity and exhibit structural dimensionalities that include 1D chains, 2D sheets and 3D frameworks. The optical spectra of these materials are consistent with bandgaps ranging from 2.70 to 3.44 eV. We show that the optical behavior depends on the structural dimensionality of the reported materials, which are potential candidates for semiconductor applications.


2000 ◽  
Vol 626 ◽  
Author(s):  
Harald Beyer ◽  
Joachim Nurnus ◽  
Harald Böttner ◽  
Armin Lambrecht ◽  
Lothar Schmitt ◽  
...  

ABSTRACTThermoelectric properties of low dimensional structures based on PbTe/PbSrTe-multiple quantum-well (MQW)-structures with regard to the structural dimensions, doping profiles and levels are presented. Interband transition energies and barrier band-gap are determined from IR-transmission spectra and compared with Kronig-Penney calculations. The influence of the data evaluation method to obtain the 2D power factor will be discussed. The thermoelectrical data of our layers show a more modest enhancement in the power factor σS2 compared with former publications and are in good agreement with calculated data from Broido et al. [5]. The maximum allowed doping level for modulation doped MQW structures is determined. Thermal conductivity measurements show that a ZT enhancement can be achieved by reducing the thermal conductivity due to interface scattering. Additionally promising lead chalcogenide based superlattices for an increased 3D figure of merit are presented.


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