Charge transfer-induced fast blue emission in SrZnO2:Ce

2021 ◽  
Vol 119 (12) ◽  
pp. 121108
Author(s):  
Manju ◽  
Megha Jain ◽  
Pargam Vashishtha ◽  
Govind Gupta ◽  
Mukul Gupta ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Blue Emission ◽  
Fast Blue

Poly(spirobifluorene)s Containing Nonconjugated Diphenylsulfone Moiety: Toward Blue Emission Through a Weak Charge Transfer Effect

2014 ◽  
Vol 47 (9) ◽  
pp. 2907-2914 ◽  
Author(s):  
Xuchao Wang ◽  
Lei Zhao ◽  
Shiyang Shao ◽  
Junqiao Ding ◽  
Lixiang Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Blue Emission ◽  
Transfer Effect ◽  
Weak Charge

Blue Emission from Charge-Transfer Excitons in Hybrid Organic–Inorganic Quantum Wires: (ABT) [PbCl3]

2019 ◽  
Vol 123 (43) ◽  
pp. 26547-26553 ◽  
Author(s):  
O. Medhioub ◽  
H. Barkaoui ◽  
A. Samet ◽  
S. Pillet ◽  
S. Triki ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Quantum Wires ◽  
Blue Emission ◽  
Charge Transfer Excitons

scholarly journals Homoconjugation enhances the photophysical and electrochemical properties of a new 3D intramolecular charge transfer iptycene displaying deep blue emission

2019 ◽  
Vol 7 (41) ◽  
pp. 12886-12890 ◽  
Author(s):  
Stephanie Montanaro ◽  
Daniel G. Congrave ◽  
Marc K. Etherington ◽  
Iain A. Wright
Keyword(s):  
Charge Transfer ◽  
Electrochemical Properties ◽  
Intramolecular Charge Transfer ◽  
Blue Emission ◽  
Optoelectronic Properties ◽  
Deep Blue

Greater than the sum of its parts – a 3D ICT molecule displays greatly improved optoelectronic properties over a 2D analogue.

scholarly journals Charge transfer state emission dynamics in blue-emitting functionalized silicon nanocrystals

2015 ◽  
Vol 17 (44) ◽  
pp. 30125-30133 ◽  
Author(s):  
Glenda B. De los Reyes ◽  
Mita Dasog ◽  
MengXing Na ◽  
Lyubov V. Titova ◽  
Jonathan G. C. Veinot ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Silicon Nanocrystals ◽  
Blue Emission ◽  
Photoluminescence Spectroscopy ◽  
Charge Transfer State ◽  
Time Resolved ◽  
A Charge ◽  
Time Resolved Photoluminescence ◽  
Transfer State

Time-resolved photoluminescence spectroscopy reveals a charge transfer state dynamics responsible for the size-independent blue emission observed from dodecylamine and ammonia functionalized silicon nanocrystals.

A QM/MM Study on Through Space Charge Transfer based Thermally Activated Delayed Fluorescence Molecule in Solid State

2021 ◽  
Author(s):  
Haipei Zou ◽  
Yuying Ma ◽  
Huanling Liu ◽  
Qingfang Mu ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Space Charge ◽  
Blue Emission ◽  
Delayed Fluorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Theoretical Investigations

Through space charge transfer (TSCT) based thermally activated delayed fluorescence (TADF) molecules with sky-blue emission have drawn great attentions in recent studies. Corresponding theoretical investigations to reveal the inner mechanisms...

Deep-blue fluorescent emitter based on a 9,9-dioctylfluorene bridge with a hybridized local and charge-transfer excited state for organic light-emitting devices with EQE exceeding 8%

2020 ◽  
Vol 8 (40) ◽  
pp. 14117-14124
Author(s):  
Xing Liu ◽  
Wen Liu ◽  
Wu Dongyu ◽  
Xiaozhen Wei ◽  
Long Wang ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Blue Emission ◽  
Emission Peak ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Deep Blue ◽  
Organic Light

The doped device of TPA-DFCP exhibits excellent deep-blue emission with the EL emission peak at 436 nm and the CIE coordinates at (0.153, 0.077), and excellent EL performance with a maximum external quantum efficiency (EQE) of 8.30%.

Study of charge transfer in FeTi

1983 ◽  
Vol 41 ◽  
pp. 296-297
Author(s):  
J. Taft∅
Keyword(s):  
Charge Transfer ◽  
Charge Distribution ◽  
Electron Scattering ◽  
Periodic System ◽  
Electron Distribution ◽  
Scattering Amplitude ◽  
Transition Elements ◽  
Hartree Fock ◽  
Cscl Structure ◽  
The Right

It is well known that for reflections corresponding to large interplanar spacings (i.e., sin θ/λ small), the electron scattering amplitude, f, is sensitive to the ionicity and to the charge distribution around the atoms. We have used this in order to obtain information about the charge distribution in FeTi, which is a candidate for storage of hydrogen. Our goal is to study the changes in electron distribution in the presence of hydrogen, and also the ionicity of hydrogen in metals, but so far our study has been limited to pure FeTi. FeTi has the CsCl structure and thus Fe and Ti scatter with a phase difference of π into the 100-ref lections. Because Fe (Z = 26) is higher in the periodic system than Ti (Z = 22), an immediate “guess” would be that Fe has a larger scattering amplitude than Ti. However, relativistic Hartree-Fock calculations show that the opposite is the case for the 100-reflection. An explanation for this may be sought in the stronger localization of the d-electrons of the first row transition elements when moving to the right in the periodic table. The tabulated difference between fTi (100) and ffe (100) is small, however, and based on the values of the scattering amplitude for isolated atoms, the kinematical intensity of the 100-reflection is only 5.10-4 of the intensity of the 200-reflection.

Direct imaging of charge transfer

1996 ◽  
Vol 54 ◽  
pp. 680-681
Author(s):  
Yimei Zhu ◽  
J. Tafto
Keyword(s):  
Charge Transfer ◽  
Electron Diffraction ◽  
Scattering Amplitude ◽  
High Temperature Superconductors ◽  
Charge Carriers ◽  
Image Charge ◽  
Net Charge ◽  
Long Time ◽  
Electron Holes ◽  
First Time

The electron holes confined to the CuO2-plane are the charge carriers in high-temperature superconductors, and thus, the distribution of charge plays a key role in determining their superconducting properties. While it has been known for a long time that in principle, electron diffraction at low angles is very sensitive to charge transfer, we, for the first time, show that under a proper TEM imaging condition, it is possible to directly image charge in crystals with a large unit cell. We apply this new way of studying charge distribution to the technologically important Bi2Sr2Ca1Cu2O8+δ superconductors.Charged particles interact with the electrostatic potential, and thus, for small scattering angles, the incident particle sees a nuclei that is screened by the electron cloud. Hence, the scattering amplitude mainly is determined by the net charge of the ion. Comparing with the high Z neutral Bi atom, we note that the scattering amplitude of the hole or an electron is larger at small scattering angles. This is in stark contrast to the displacements which contribute negligibly to the electron diffraction pattern at small angles because of the short g-vectors.

Efficient and stable charge transfer channels for photocatalytic water splitting activity of CdS without sacrificial agents

2020 ◽  
Vol 8 (40) ◽  
pp. 20963-20969 ◽  
Author(s):  
Wei Chen ◽  
Guo-Bo Huang ◽  
Hao Song ◽  
Jian Zhang
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Transfer Channel ◽  
Efficient Charge ◽  
Transfer Channels

An efficient charge transfer channel for improving the photocatalytic water splitting activity and durability of CdS without sacrificial agents.

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