Er3+-Doped Anatase TiO2 Nanocrystals: Crystal-Field Levels, Excited-State Dynamics, Upconversion, and Defect Luminescence

Small ◽  
2011 ◽  
Vol 7 (21) ◽  
pp. 3046-3056 ◽  
Author(s):  
Wenqin Luo ◽  
Chengyu Fu ◽  
Renfu Li ◽  
Yongsheng Liu ◽  
Haomiao Zhu ◽  
...  
Keyword(s):  
Excited State ◽  
Crystal Field ◽  
Anatase Tio2 ◽  
Tio2 Nanocrystals ◽  
Excited State Dynamics ◽  
Defect Luminescence

Crystal-field analysis, upconversion, and excited-state dynamics for(U4+,U3+):Ba2YCl7single crystals

2003 ◽  
Vol 67 (19) ◽  
Author(s):  
Mirosław Karbowiak ◽  
Agnieszka Mech ◽  
Janusz Drożdżyński ◽  
Norman M. Edelstein
Keyword(s):  
Excited State ◽  
Crystal Field ◽  
Field Analysis ◽  
Excited State Dynamics

Excited State Dynamics of Ru10 Cluster Interfacing Anatase TiO2(101) Surface and Liquid Water

2014 ◽  
Vol 5 (16) ◽  
pp. 2823-2829 ◽  
Author(s):  
Shuping Huang ◽  
Talgat M. Inerbaev ◽  
Dmitri S. Kilin
Keyword(s):  
Excited State ◽  
Liquid Water ◽  
Anatase Tio2 ◽  
Excited State Dynamics

Nd3+-doped TiO2 nanocrystals: Structural changes, excited-state dynamics, and luminescence defects

2021 ◽  
Vol 240 ◽  
pp. 118461
Author(s):  
Jhenifer N.L. Lopes ◽  
José C.S. Filho ◽  
Djalmir N. Messias ◽  
Viviane Pilla ◽  
Noelio O. Dantas ◽  
...  
Keyword(s):  
Excited State ◽  
Structural Changes ◽  
Tio2 Nanocrystals ◽  
Doped Tio2 ◽  
Excited State Dynamics

Excited-State Dynamics in the RNA Nucleotide Uridine 5’-Monophosphate Investigated by Femtosecond Broadband Transient Absorption Spectroscopy

2019 ◽  
Author(s):  
Matthew M. Brister ◽  
Carlos Crespo-Hernández
Keyword(s):  
Excited State ◽  
Excited States ◽  
Ground State ◽  
Transient Absorption ◽  
Electronic Energy ◽  
Transient Absorption Spectroscopy ◽  
Electronic Relaxation ◽  
Vibrationally Excited ◽  
Excited State Dynamics ◽  
Π State

<p></p><p> Damage to RNA from ultraviolet radiation induce chemical modifications to the nucleobases. Unraveling the excited states involved in these reactions is essential, but investigations aimed at understanding the electronic-energy relaxation pathways of the RNA nucleotide uridine 5’-monophosphate (UMP) have not received enough attention. In this Letter, the excited-state dynamics of UMP is investigated in aqueous solution. Excitation at 267 nm results in a trifurcation event that leads to the simultaneous population of the vibrationally-excited ground state, a longlived <sup>1</sup>n<sub>O</sub>π* state, and a receiver triplet state within 200 fs. The receiver state internally convert to the long-lived <sup>3</sup>ππ* state in an ultrafast time scale. The results elucidate the electronic relaxation pathways and clarify earlier transient absorption experiments performed for uracil derivatives in solution. This mechanistic information is important because long-lived nπ* and ππ* excited states of both singlet and triplet multiplicities are thought to lead to the formation of harmful photoproducts.</p><p></p>

Modulation of Excited State Dynamics in Lead Halide Perovskite Films with Electrical Bias

2019 ◽  
Author(s):  
Gergely Samu ◽  
R.A. Scheidt ◽  
A. Balog ◽  
C. Janáky ◽  
P.V. Kamat
Keyword(s):  
Excited State ◽  
Excited State Dynamics ◽  
Halide Perovskite ◽  
Electrical Bias ◽  
Lead Halide
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