Determination of the nature of the optical gap of SrTiO3

1971 ◽  
Vol 5 (2) ◽  
pp. 181-203 ◽  
Author(s):  
M. Capizzi ◽  
A. Frova
Keyword(s):  
Optical Gap

scholarly journals Erratum: “Determination of effective optical gap in dye/TiO2 systems inspired by p-n junctions” [Appl. Phys. Lett. 106, 143502 (2015)]

2016 ◽  
Vol 108 (1) ◽  
pp. 019901
Author(s):  
Kyung-Jun Hwang ◽  
Jongdeok An ◽  
Dajung Kim ◽  
Chan Im ◽  
Yonkil Jeong ◽  
...  
Keyword(s):  
Optical Gap

Determination of the optical gap bowing parameter for ternary Ni1−xZnxO cubic rocksalt solid solutions

2015 ◽  
Vol 44 (33) ◽  
pp. 14793-14798 ◽  
Author(s):  
S. D. Singh ◽  
V. Nandanwar ◽  
Himanshu Srivastava ◽  
A. K. Yadav ◽  
Ashok Bhakar ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Repulsive Interaction ◽  
Optical Gap ◽  
Bowing Parameter

The optical gap bowing parameter of ternary Ni1−xZnxO solid solutions is determined to be b = −0.93 ± 0.05 eV, where the negative value of the bowing indicates a repulsive interaction between the ligand O-2p and metal Ni-3d orbitals.

Internal Photoemission Measurements for the Determination of Schottky Barrier Height on a-Si, Ge:H, F Alloys

1986 ◽  
Vol 70 ◽  
Author(s):  
V. Chu ◽  
S. Aljishi ◽  
D. Slobodin ◽  
S. Wagner
Keyword(s):  
Glow Discharge ◽  
Schottky Barrier ◽  
Entire Range ◽  
Schottky Barrier Height ◽  
Alloy Composition ◽  
Similar Increase ◽  
Internal Photoemission ◽  
Barrier Heights ◽  
Optical Gap

ABSTRACTWe report measurements of internal photoemission from Ni, Au, and Pd contacts into a-Si, Ge:H, F alloys. The alloys were prepared by d.c. glow discharge decomposition of either SiF4 or SiH4 and GeF4, and H2. The sharp exponential drop in subgap absorption in these alloys, measured by the Constant Photocurrent Method (CPM), allows the determination of barrier heights using internal photoemission thresholds. The barrier heights of Ni, Au and Pd contacts are presented as a function of alloy composition. We find Ni has the lowest barrier heights while Au shows the highest barrier heights over the entire range of Eopt. We also find that for the Ni and Au contacts, ΦB varies as 1/2 the optical gap. In the case of Pd, ΦB shows a dependence of 1/3 the optical gap. We observed an increase in ΦB for Pd contacts when etched with a diluted HF solution prior to metallization. A similar increase in ΦD was not observed for the Au and Ni contacts.

Determination of thermal parameters and the optical gap of poly(3‐butylthiophene) films by photopyroelectric spectroscopy

1993 ◽  
Vol 74 (2) ◽  
pp. 979-982 ◽  
Author(s):  
W. L. B. Melo ◽  
A. Pawlicka ◽  
R. Sanches ◽  
S. Mascarenhas ◽  
R. M. Faria
Keyword(s):  
Thermal Parameters ◽  
Optical Gap

scholarly journals Determination of the Optical GAP in Thin Films of Amorphous Dilithium Phthalocyanine Using the Tauc and Cody Models

Molecules ◽  
2012 ◽  
Vol 17 (9) ◽  
pp. 10000-10013 ◽  
Author(s):  
María Elena Sánchez-Vergara ◽  
Juan Carlos Alonso-Huitron ◽  
Arturo Rodriguez-Gómez ◽  
Jerry N. Reider-Burstin
Keyword(s):  
Thin Films ◽  
Optical Gap

In situ determination of dielectric functions and optical gap of ultrathin amorphous silicon by real time spectroscopic ellipsometry

1991 ◽  
Vol 59 (20) ◽  
pp. 2543-2545 ◽  
Author(s):  
Ilsin An ◽  
Y. M. Li ◽  
C. R. Wronski ◽  
H. V. Nguyen ◽  
R. W. Collins
Keyword(s):  
Amorphous Silicon ◽  
Real Time ◽  
Spectroscopic Ellipsometry ◽  
Optical Gap

scholarly journals Re-evaluation of experimental measurements for the validation of electronic band structure calculations for LiFePO4 and FePO4

RSC Advances ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 1134-1146 ◽  
Author(s):  
Yin Zhang ◽  
Jose A. Alarco ◽  
Adam S. Best ◽  
Graeme A. Snook ◽  
Peter C. Talbot ◽  
...  
Keyword(s):  
Band Structure ◽  
Dft Calculations ◽  
Electronic Band Structure ◽  
Experimental Measurements ◽  
Electronic Band ◽  
Optical Gap ◽  
Band Structure Calculations ◽  
Structure Calculations

The surface Li depletion affects the determination of optical gap for LiFePO4, which was previously used for validation of DFT calculations.

Interference-Free Determination of the Optical Absorption Coefficient and the Optical Gap of Amorphous Silicon Thin Films

1991 ◽  
Vol 30 (Part 1, No. 5) ◽  
pp. 1008-1014 ◽  
Author(s):  
Yoshihiro Hishikawa ◽  
Noboru Nakamura ◽  
Shinya Tsuda ◽  
Shoichi Nakano ◽  
Yasuo Kishi ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Absorption ◽  
Absorption Coefficient ◽  
Amorphous Silicon ◽  
Optical Absorption Coefficient ◽  
Optical Gap ◽  
Silicon Thin Films

Determination of effective optical gap in dye/TiO2systems inspired by p-n junctions

2015 ◽  
Vol 106 (14) ◽  
pp. 143502 ◽  
Author(s):  
Kyung-Jun Hwang ◽  
Yonkil Jeong ◽  
Dong-Won Park
Keyword(s):  
Optical Gap
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