Direct and Indirect Band Gap SemiconductorsKnowles, Kevin
Dong-Kyun Seo, Roald Ho mann,"Direct and indirect band gap types in one- dimensional conjugatedor stacked organic materials", Theor Chem Acc (1999).Seo, D.; Hoffmann, R. Direct and indirect band gap types in one-dimensional conjugated or stacked organic materials. Theor. Chem. Accounts ...
Both direct and indirect band gap recombinations are observed at room temperature around 1.6 and1.8μm. The amplitude of the direct band gap recombination is equivalent to the one of the indirect band gap.关键词: Germanium Band gap Electroluminescence Photonic bandgap materials Doping ...
This photoabsorption phenomena depends on material and wavelength due to materials direct and indirect bandgap. For instance, silicon (Si) is an appropriate photodetector material for visible wavelength from 400 nm to 1000 nm. For telecoms’ wavelength range (1300 nm to 1600nm), Ge and indium ...
是不是如果是direct band gap，就能激发光子，从而有荧光效应？而indirect band gap则不能？[Last ...
CHAPTER 9.2.4: INDIRECT AND DIRECT BAND GAPS Understanding Lasers By Jeff Hecht 9.2.4 Indirect and Direct Band Gaps Silicon is the best-known semiconductor. It is the standard for most electronic applications, for light detection at visible and near-infrared wavelengths, and for solar cells. How...
Band gap energy calculation The optical band gap energies of multilayer thin films is shown in Fig. 4, which are calculated by using Tauc’s relation(2)(αhυ)=A(hυ-Eg)nwhere, hυ is “photon energy” and ‘n’ is equal to ½ and 2 for “direct and indirect band-gap semiconduc...
Although GaP, a III-V compound semiconductor, has been extensively utilized in the optoelectronic industry for decades as a traditional material, the inherent indirect bandgap nature of GaP limits its efficiency. Here, we demonstrate an indirect-to-direct bandgap transition of GaP through the formatio...
direct gap前没有band。而且pyrite是直接带隙半导体...或许差距0.04eV太小了，热激发可以克服，所以...
Theoretical investigation to study the influence of strain on the band lineups of core/shell nanostructures A class of quantum dots (QD) known as core鈥搒hell quantum dots (CSQDs) where a lower band gap material is enclosed by a higher band gap material, are high... P Paul,S Chattopadhyay...