One- and Two-Photon Photophysical Properties, Ultrafast Dynamics, and DFT Study of Three Modified Zinc Phthalocyanines DOI
Ding Zhang, Yaochuan Wang,

Xiangxu Meng

et al.

The Journal of Physical Chemistry A, Journal Year: 2024, Volume and Issue: 128(31), P. 6402 - 6411

Published: July 29, 2024

As two-photon absorption (TPA) materials, phthalocyanine molecules have promising application prospects due to their large TPA cross-section, high third-order nonlinear optical susceptibility, and ultrafast response characteristics. In this work, properties the of three modified zinc (P-HPcZn, Pc-P-Pc, (DR1)4PcZn) were analyzed. No obvious side-shoulder peaks in Q-band can be observed from steady-state spectra molecules, confirming lack aggregation products solutions our measurement. Open-aperture Z-scan results show relatively cross-section values 136.4 55.3 GM for Pc-P-Pc (DR1)4PcZn, respectively. The that process under excitation femtosecond pulses is a reverse saturable (RSA) mechanism. Up-conversion fluorescence (DR1)4PcZn THF solution indicate emission mechanism TPA. study dynamics, transient investigated decay lifetime dynamic traces corresponding some representative probe wavelengths was obtained through data fitting with multi-exponential function. Finally, charge transfer excited state discussed depth by DFT method. energy gaps P-HPcZn, are 2.16, 1.39, 2.13 eV, donor–acceptor–donor (D-A-D) structure has smallest gap as well best properties.

Language: Английский

Molecular Design, DFT Study and Optoelectronics Properties of Several DSSCs Sensitizers Based on Different Donor Groups DOI
Heyang Sun, Yi Yang, Daoyi Lu

et al.

Journal of Fluorescence, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Language: Английский

Citations

0
One- and Two-Photon Photophysical Properties, Ultrafast Dynamics, and DFT Study of Three Modified Zinc Phthalocyanines DOI
Ding Zhang, Yaochuan Wang,

Xiangxu Meng

et al.

The Journal of Physical Chemistry A, Journal Year: 2024, Volume and Issue: 128(31), P. 6402 - 6411

Published: July 29, 2024

As two-photon absorption (TPA) materials, phthalocyanine molecules have promising application prospects due to their large TPA cross-section, high third-order nonlinear optical susceptibility, and ultrafast response characteristics. In this work, properties the of three modified zinc (P-HPcZn, Pc-P-Pc, (DR1)4PcZn) were analyzed. No obvious side-shoulder peaks in Q-band can be observed from steady-state spectra molecules, confirming lack aggregation products solutions our measurement. Open-aperture Z-scan results show relatively cross-section values 136.4 55.3 GM for Pc-P-Pc (DR1)4PcZn, respectively. The that process under excitation femtosecond pulses is a reverse saturable (RSA) mechanism. Up-conversion fluorescence (DR1)4PcZn THF solution indicate emission mechanism TPA. study dynamics, transient investigated decay lifetime dynamic traces corresponding some representative probe wavelengths was obtained through data fitting with multi-exponential function. Finally, charge transfer excited state discussed depth by DFT method. energy gaps P-HPcZn, are 2.16, 1.39, 2.13 eV, donor–acceptor–donor (D-A-D) structure has smallest gap as well best properties.

Language: Английский

Citations

3