Browsing by Subject "Energy gap"
Now showing items 19 of 9

Article
Abinitio electronic structure calculations and properties of [SixSn1 − x]3N4 ternary nitrides
(2016)We carry out ab initio electronic structure calculations of (SixSn1 − x)3N4 using density functional theory with projector augmentedwave potentials under the generalized gradient approximation. We find that the energetically ...

Article
Compact EBGBacked Planar Monopole for BAN Wearable Applications
(2017)This paper presents a planar monopole backed with a 2 × 1 array of electromagnetic bandgap (EBG) structures. The reflection phase of a single EBG unit cell has been studied and exploited toward efficient radiation of a ...

Conference Object
Conformai wearable monopole antenna backed by a compact EBG structure for body area networks
(Institute of Electrical and Electronics Engineers Inc., 2017)A compact planar monopole antenna backed by an electromagnetic bandgap (EBG) structure is presented. The antenna is conformal to the human body and is intended for wearable applications in wireless body area networks. It ...

Article
Highly anisotropic crystal growth and thermoelectric properties of K 2Bi 8xSb xSe 13 solid solutions: Band gap anomaly at low x
(2002)The thermoelectric properties of solid solutions of the type βK 2Bi 8xSb xSe 13 (0<x<8) were studied with respect to thermal behavior, band gap variation, and charge transport properties as a function of x. At x values ...

Article
Lightinduced mobility enhancement in deltadoped GaAs/In0.26Ga0.74As/GaAs quantum wells grown by molecular beam epitaxy on GaAs(001)
(1999)Persistent photoconductivity in 80 angstroms strained GaAs/In0.26Ga0.74As/GaAs quantum wells was investigated by measuring the Shubnikov de Haas and Hall effects at 4.2 K. The quantum wells were grown by molecular beam ...

Article
Optical and electrical properties of selectively deltadoped strained InxGa1xAs/GaAs quantum wells
(1996)We report here an investigation of selectively deltadoped strained InGaAs/GaAs quantum wells. Electronic structures of the systems were calculated by selfconsistently solving the Schrödinger and Poisson equations and the ...

Article
Syntheses, crystal Structures and electronic Structures of new metal chalcoiodides Bi2CuSe3I and Bi6Cu3S10I
(2016)Two new metal chalcoiodides were synthesized by solidstate reactions at 400 °C. Crystal Data: Bi2CuSe3I, 1, monoclinic, C2/m, a=14.243(2) Å, b=4.1937(7) Å, c=14.647(2) Å, β=116.095(2)°, V=785.7(2) Å3, and Z=4

Article
Tin oxide nanowires: The influence of trap states on ultrafast carrier relaxation
(2009)We have studied the optical properties and carrier dynamics in SnO 2 nanowires (NWs) with an average radius of 50 nm that were grown via the vaporliquid solid method. Transient differential absorption measurements have ...

Article
Ultrafast timeresolved spectroscopy of In2 O3 nanowires
(2009)Ultrafast carrier dynamics in In2 O3 nanowires with an average diameter of ≈100±20 nm grown by the vaporliquidsolid method have been investigated in detail using differential absorption spectroscopy with femtosecond ...