Complex Reduction Chemistry of (abpy)PtCl2, abpy = 2,2‘-Azobispyridine:  Formation of Cyclic [(μ,η2:η1-abpy)PtCl]22+with a New Coordination Mode for abpy and a Near-Infrared Ligand-to-Ligand Intervalence Charge Transfer Absorption of the One-Electron Reduced State

2004 ◽  
Vol 43 (19) ◽  
pp. 5973-5980 ◽  
Author(s):  
Akbey Dogan ◽  
Biprajit Sarkar ◽  
Axel Klein ◽  
Falk Lissner ◽  
Thomas Schleid ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Coordination Mode ◽  
Near Infrared ◽  
Intervalence Charge Transfer ◽  
The One ◽  
Reduced State

scholarly journals Exploiting exciton coupling of ligand radical intervalence charge transfer transitions to tune NIR absorption

2018 ◽  
Vol 9 (6) ◽  
pp. 1610-1620 ◽  
Author(s):  
Ryan M. Clarke ◽  
Tiffany Jeen ◽  
Serena Rigo ◽  
John R. Thompson ◽  
Loren G. Kaake ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Rational Design ◽  
Near Infrared ◽  
Relative Orientation ◽  
Exciton Coupling ◽  
Salen Complexes ◽  
Nir Absorption ◽  
Charge Transfer Transitions ◽  
Intervalence Charge Transfer

We detail the rational design of a series of bimetallic bis-ligand radical Ni salen complexes in which the relative orientation of the ligand radical chromophores provides a mechanism to tune the energy of intense intervalence charge transfer (IVCT) bands in the near infrared (NIR) region.

UV-vis/X-ray/thermo-induced synthesis and UV–SWIR photoresponsive property of a mixed-valence viologen molybdate semiconductor

2021 ◽  
Author(s):  
Peng-Hao Wang ◽  
Cao-Ming Yu ◽  
Xiao-Qing Yu ◽  
Ming-Sheng Wang ◽  
Guo-Cong Guo
Keyword(s):  
Charge Transfer ◽  
Radical Cation ◽  
Near Infrared ◽  
Mixed Valence ◽  
Design Strategy ◽  
X Ray ◽  
Intervalence Charge Transfer

A new design strategy through synergy of Mo (VI)–Mo (V) intervalence charge transfer and π(radical)–π(radical/cation) interactions is proposed to obtain semiconductors with photoresponsive ranges covering the whole UV–SWIR (ultraviolet–shortwave near-infrared;...

Solvent Control of Vibronic Coupling upon Intervalence Charge Transfer Excitation of (CN)5FeCNRu(NH3)5-as Revealed by Resonance Raman and Near-Infrared Absorption Spectroscopies

1998 ◽  
Vol 120 (23) ◽  
pp. 5848-5849 ◽  
Author(s):  
Chengfei Wang ◽  
Brian K. Mohney ◽  
Robert D. Williams ◽  
Vladimir Petrov ◽  
Joseph T. Hupp ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Infrared Absorption ◽  
Near Infrared ◽  
Resonance Raman ◽  
Vibronic Coupling ◽  
Intervalence Charge Transfer ◽  
Solvent Control ◽  
Charge Transfer Excitation

scholarly journals Enhancing sub-bandgap external quantum efficiency by photomultiplication for narrowband organic near-infrared photodetectors

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jonas Kublitski ◽  
Axel Fischer ◽  
Shen Xing ◽  
Lukasz Baisinger ◽  
Eva Bittrich ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Near Infrared ◽  
Optical Cavity ◽  
Hole Injection ◽  
Visible Range ◽  
Absorption Region ◽  
Electromagnetic Signals ◽  
Organic Photodetectors

AbstractDetection of electromagnetic signals for applications such as health, product quality monitoring or astronomy requires highly responsive and wavelength selective devices. Photomultiplication-type organic photodetectors have been shown to achieve high quantum efficiencies mainly in the visible range. Much less research has been focused on realizing near-infrared narrowband devices. Here, we demonstrate fully vacuum-processed narrow- and broadband photomultiplication-type organic photodetectors. Devices are based on enhanced hole injection leading to a maximum external quantum efficiency of almost 2000% at −10 V for the broadband device. The photomultiplicative effect is also observed in the charge-transfer state absorption region. By making use of an optical cavity device architecture, we enhance the charge-transfer response and demonstrate a wavelength tunable narrowband photomultiplication-type organic photodetector with external quantum efficiencies superior to those of pin-devices. The presented concept can further improve the performance of photodetectors based on the absorption of charge-transfer states, which were so far limited by the low external quantum efficiency provided by these devices.

Proton-Coupled Intervalence Charge Transfer: Concerted Processes

2012 ◽  
Vol 134 (4) ◽  
pp. 1906-1909 ◽  
Author(s):  
Ramachandran Balasubramanian ◽  
Geneviève Blondin ◽  
Juan Carlos Canales ◽  
Cyrille Costentin ◽  
Jean-Marc Latour ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Intervalence Charge Transfer ◽  
Concerted Processes

Intermolecular charge-transfer aggregates enable high-efficiency near-infrared emissions by nonadiabatic coupling suppression

2021 ◽  
Vol 64 (10) ◽  
pp. 1786-1795
Author(s):  
Jie Xue ◽  
Jingyi Xu ◽  
Jiajun Ren ◽  
Qingxin Liang ◽  
Qi Ou ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Near Infrared ◽  
High Efficiency ◽  
Nonadiabatic Coupling ◽  
Intermolecular Charge Transfer ◽  
Infrared Emissions
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