Stutzmann, Sub-bandgap absorption of gallium nitride determined by photothermal deflection spectroscopy, Solid State Commun. 97 (1996) 365-370.O. Ambacher, W. Rieger, P. Ansmann, H. Angerer, T. D. Moustakas, and M. Stutzmann, "Sub-bandgap absorption of gallium nitride determined by ...
(EQE) studies of poly(3-hexylthiophene-2,5-diyl):[6,6]-phenylC61-butyric acid methyl ester (P3HT:PCBM) based bulk heterojunction polymer solar cells with improved intensity resolution in the subbandgap (SBG) region, i.e., the energy range below the optical bandgaps of the pristine ...
Photothermal Deflection Spectroscopy (PDS) is used to study the sub-bandgap absorption of hexagonal gallium nitride (GaN) in the energy range from 0.6 to 3.8 eV. Auto-, n- and p-doped GaN layers deposited by chemical vapour deposition from organometallic precursors (MOCVD) or electron cyclotron...
不过你说的 sub-bandgap absorption目测像是指能量小于带隙的吸收，和子能带看似没有关系。。。
Subbandgapabsorptioncoefficient abstract Nanocrystallinecadmiumselenide(nc-CdSe)thinfilmshavebeenpreparedbythermalevaporation usingtheinertgascondensation(IGC)technique.Transmissionelectronmicroscopy(TEM)studiesshow thattheCdSenanocrystals(NCs)aresphericalinshape.Constantphotocurrentmethod(CPM)isusedto ...
The thin films of nc-CdSe have been annealed at 80 掳C for one hour and sub-bandgap absorption in annealed samples has also been calculated. Slope of Urbach tail which is a measure of disorder in both as deposited and annealed samples has been calculated. In the case of as deposited nc...
With the aid of a Fabry-Perot microcavity, this rather weak absorption region has been used in NIR narrowband organic photodetectors (CT-OPDs)36,37,38. Such narrowband OPDs could significantly benefit from the increased IQE, if photomultiplication would take place also by direct excitation of CT...
Devices based on mid-bandgap absorption, surface-state absorption, internal photoemission absorption and two-photon absorption are reported, their working principles elucidated and their performance discussed and compared.doi:10.5923/j.optics.20120201.01...
The parabolic Tauc edge as well as the exponential Urbach tail are identified in the absorption spectrum. The Tauc edge supports that the density of states at the bottom of conduction band is proportional to the square root of energy. The Urbach edge is attributed to interband transition caused...
Plus (2025) 140:51 https://doi.org/10.1140/epjp/s13360-025-05982-1 Regular Article The impact of effective mass mismatch and quantum dot size on the interband absorption and sub-bandgap photocurrent of box-shaped InAs/GaAs quantum dot-intermediate band solar cells Volkan Kiziloglu1,2,a ,...