为了解决这个问题,我们采用了外推法(linear extrapolation method):在曲线上,我们选取一个明显呈线性的高能量部分,进行直线拟合,然后将该拟合线延伸至与横轴交点处,这一交点对应的能量即为我们测定的光学带隙(E_{\text{opt}})值。 陶克绘图法起初专门用于非晶态半导体,因为这些材料的带结构近似为抛物线型,电子的光...
SYNTHESIS OF CARBON DOTS (CDS) AND DETERMINATION OF OPTICAL GAP ENERGY WITH TAUC PLOT METHODCarbon Dots (CDs) which have been synthesized using the laser ablation method show the presence of UV-Vis absorption in the wavelength range of 303 nm to 333 nm for absorbance and 495 nm to 503 nm...
Share on Facebook AcronymDefinition TAUCTuna Académica da Universidade de Coimbra(Portuguese Universitary musical organization) TAUCThe Association of Union Constructors TAUCTransAtlantic Uncertainty Colloquium TAUCTotal Area under the Curve TAUCThe American University in Cairo(Egypt; usually seen as AUC) ...
5 was proceeded according to the Tauc plot method [37], and red-shift phenomenon could be proved by band width (Eg) variation (Fig. 6). TiO2/AC-ZnCl2, TiO2/AC-CA, TiO2/AC-FeCl3 are 2.93 eV, 2.73 eV, 2.65 EV, respectively, lower than that of TiO2 as 3.26ev, thus will help to...
Evaluation of the Tauc method for optical absorption edge determination: ZnO thin films as a model system. Phys. Stat. Sol. (B) 2015, 252, 1700-1710.B. D. Viezbicke, S. Patel, B. E. Davis, D. P. Birnie, Evaluation of the Tauc method for optical absorption edge determination: ...
Using the Tauc plot method on the absorbance spectrum data of an electrodeposited zinc oxide film, the calculated BGE was 3.80 eV, with a 15.15% deviation from its literature value of 3.30 eV. In addition, zinc sulfide, which was chemically deposited on glass slides, had an average band gap...
[See Tauc et al., Physica Status Solidi 15, 627 (1966); naturally, these are usually called "Tauc" plots.] In earlier work, we found that direct band gaps fitted using Tauc's method can be quite accurate, to 1% [see Viezbicke et al., Phys. Status Solidi B 252, 1700 (2015)]....
However, the Tauc plot method has become the most preferred approach. We have developed a versatile and user-friendly software capable of accurately deriving bandgap values from either measured or simulated absorbance using the Tauc plot method. The program is validated using absorbance data of ...
However, in the case where semiconductors exhibit an absorption of the interband and an additional significant absorption of a sub-band, a direct application of the Tauc method can lead to erroneous estimates of bandgap. Also pertinent to note is the rarely explored/ reported influence of the ...
Herein, we demonstrate that the scale of the conventional Tauc plot and the extrapolation technique poses significant influence on the determined value of bandgap. The nanomaterial used for this study was prepared by the CVD method using different H-2 reducing gas flow rates. XRD measurements ...