Resumen
Electronic and optical properties of phosphorene quantum dots functionalized with an organic molecule, porphyrin, are investigated using density functional theory with two different van der Waals functionals. The electronic structure of this complex is obtained and with this information, the real and imaginary parts of the dielectric function are calculated, from which, the interband optical response can be determined. Depending on the size of the quantum dot and the relative orientation between the dot and the organic molecule, it is found that the porphyrin physisorption leads to important modifications of the energy spectrum of the functionalized blue phosphorene quantum dots. These changes reflect in the optical response of the complex which shows features that come from both the blue phosphorene structure and the organic molecule. It is also found that the rotations of the molecule with respect to the phosphorene quantum dot do not practically alter the value of the binding energy.
| Idioma original | Inglés |
|---|---|
| Número de artículo | 109278 |
| Publicación | Computational Materials Science |
| Volumen | 171 |
| DOI | |
| Estado | Publicada - 1 ene 2020 |
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Optoelectronic properties of phosphorene quantum dots functionalized with free base porphyrins. / Samia, A.; Feddi, E.; Duque, C. A.; Mora-Ramos, M. E.; Akimov, V.; Correa, J. D.
En: Computational Materials Science, Vol. 171, 109278, 01.01.2020.Resultado de la investigación: Contribución a una revista › Artículo › Investigación › revisión exhaustiva
TY - JOUR
T1 - Optoelectronic properties of phosphorene quantum dots functionalized with free base porphyrins
AU - Samia, A.
AU - Feddi, E.
AU - Duque, C. A.
AU - Mora-Ramos, M. E.
AU - Akimov, V.
AU - Correa, J. D.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Electronic and optical properties of phosphorene quantum dots functionalized with an organic molecule, porphyrin, are investigated using density functional theory with two different van der Waals functionals. The electronic structure of this complex is obtained and with this information, the real and imaginary parts of the dielectric function are calculated, from which, the interband optical response can be determined. Depending on the size of the quantum dot and the relative orientation between the dot and the organic molecule, it is found that the porphyrin physisorption leads to important modifications of the energy spectrum of the functionalized blue phosphorene quantum dots. These changes reflect in the optical response of the complex which shows features that come from both the blue phosphorene structure and the organic molecule. It is also found that the rotations of the molecule with respect to the phosphorene quantum dot do not practically alter the value of the binding energy.
AB - Electronic and optical properties of phosphorene quantum dots functionalized with an organic molecule, porphyrin, are investigated using density functional theory with two different van der Waals functionals. The electronic structure of this complex is obtained and with this information, the real and imaginary parts of the dielectric function are calculated, from which, the interband optical response can be determined. Depending on the size of the quantum dot and the relative orientation between the dot and the organic molecule, it is found that the porphyrin physisorption leads to important modifications of the energy spectrum of the functionalized blue phosphorene quantum dots. These changes reflect in the optical response of the complex which shows features that come from both the blue phosphorene structure and the organic molecule. It is also found that the rotations of the molecule with respect to the phosphorene quantum dot do not practically alter the value of the binding energy.
KW - DFT
KW - Optical
KW - Phosphorene
KW - Quantum-dots
UR - http://www.scopus.com/inward/record.url?scp=85072517436&partnerID=8YFLogxK
U2 - 10.1016/j.commatsci.2019.109278
DO - 10.1016/j.commatsci.2019.109278
M3 - Artículo
VL - 171
JO - Computational Materials Science
JF - Computational Materials Science
SN - 0927-0256
M1 - 109278
ER -