Intramolecular strong electronic coupling in a discretely H-aggregated phthalocyanine dimer connected with a rigid linker

2018 ◽  
Vol 54 (59) ◽  
pp. 8226-8228 ◽  
Author(s):  
Yasuyuki Yamada ◽  
Katsuhiko Nawate ◽  
Tomoaki Maeno ◽  
Kentaro Tanaka
Keyword(s):  
Electronic Coupling ◽  
Aggregate Form

This is the first example of a discrete dimer of phthalocyanines in an H-aggregate form. Intramolecular strong electronic coupling was observed between the phthalocyanines electrochemically.

scholarly journals Thermochromic aggregation-induced dual phosphorescence via temperature-dependent sp3-linked donor-acceptor electronic coupling

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Wang ◽  
Zhubin Hu ◽  
Xiancheng Nie ◽  
Linkun Huang ◽  
Miao Hui ◽  
...  
Keyword(s):  
Excited State ◽  
Room Temperature ◽  
Electronic Coupling ◽  
Temperature Dependent ◽  
Molecular Systems ◽  
Donor And Acceptor ◽  
Theoretical Investigations ◽  
Donor Acceptor ◽  
And Control ◽  
Two Temperature

AbstractAggregation-induced emission (AIE) has proven to be a viable strategy to achieve highly efficient room temperature phosphorescence (RTP) in bulk by restricting molecular motions. Here, we show that by utilizing triphenylamine (TPA) as an electronic donor that connects to an acceptor via an sp3 linker, six TPA-based AIE-active RTP luminophores were obtained. Distinct dual phosphorescence bands emitting from largely localized donor and acceptor triplet emitting states could be recorded at lowered temperatures; at room temperature, only a merged RTP band is present. Theoretical investigations reveal that the two temperature-dependent phosphorescence bands both originate from local/global minima from the lowest triplet excited state (T1). The reported molecular construct serves as an intermediary case between a fully conjugated donor-acceptor system and a donor/acceptor binary mix, which may provide important clues on the design and control of high-freedom molecular systems with complex excited-state dynamics.

Permanent Dipole Moments Enhance Electronic Coupling and Singlet Fission in Pentacene

2021 ◽  
pp. 7453-7458
Author(s):  
Clemens Zeiser ◽  
Luca Moretti ◽  
Thomas Geiger ◽  
Lukas Kalix ◽  
Ana M. Valencia ◽  
...  
Keyword(s):  
Dipole Moments ◽  
Electronic Coupling ◽  
Singlet Fission

Tuning p-Si(111) Photovoltage via Molecule|Semiconductor Electronic Coupling

2021 ◽  
Vol 143 (6) ◽  
pp. 2567-2580
Author(s):  
Dylan G. Boucher ◽  
Kara Kearney ◽  
Elif Ertekin ◽  
Michael J. Rose
Keyword(s):  
Electronic Coupling ◽  
Semiconductor Electronic

Orthogonal electronic coupling in multicentre arylamine mixed-valence compounds based on a dibenzofulvene–thiophene conjugated bridge

2017 ◽  
Vol 53 (64) ◽  
pp. 8960-8963 ◽  
Author(s):  
A. Beneduci ◽  
G. A. Corrente ◽  
E. Fabiano ◽  
V. Maltese ◽  
S. Cospito ◽  
...  
Keyword(s):  
Near Infrared ◽  
Mixed Valence ◽  
Infrared Region ◽  
Optical Modulation ◽  
Electronic Coupling ◽  
Voltage Dependent ◽  
Near Infrared Region ◽  
Mixed Valence Compounds

Novel H-shaped tetrarylamine mixed valence compounds showing orthogonal electronic coupling generate voltage-dependent electro-optical modulation in the near infrared region.

Electronic Coupling in C-Clamp-Shaped Molecules:  Solvent-Mediated Superexchange Pathways

1996 ◽  
Vol 118 (1) ◽  
pp. 243-244 ◽  
Author(s):  
Krishna Kumar ◽  
Zhe Lin ◽  
David H. Waldeck ◽  
Matthew B. Zimmt
Keyword(s):  
Electronic Coupling

Ruthenium-Amine Electronic Coupling Bridged through Phen-1,3-diyl Versus Phen-1,4-diyl: Reverse of the Charge Transfer Direction

2013 ◽  
Vol 32 (16) ◽  
pp. 4564-4570 ◽  
Author(s):  
Jian-Hong Tang ◽  
Si-Hai Wu ◽  
Jiang-Yang Shao ◽  
Hai-Jing Nie ◽  
Yu-Wu Zhong
Keyword(s):  
Charge Transfer ◽  
Electronic Coupling ◽  
Transfer Direction

scholarly journals Layer-resolved many-electron interactions in delafossite PdCoO2 from standing-wave photoemission spectroscopy

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Qiyang Lu ◽  
Henrique Martins ◽  
Juhan Matthias Kahk ◽  
Gaurab Rimal ◽  
Seongshik Oh ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Standing Wave ◽  
Three Dimensional ◽  
Photoemission Spectroscopy ◽  
Electronic Coupling ◽  
Many Body ◽  
X Ray ◽  
Charge Transfer Excitons ◽  
Many Body Interactions ◽  
Electron Interactions

AbstractWhen a three-dimensional material is constructed by stacking different two-dimensional layers into an ordered structure, new and unique physical properties can emerge. An example is the delafossite PdCoO2, which consists of alternating layers of metallic Pd and Mott-insulating CoO2 sheets. To understand the nature of the electronic coupling between the layers that gives rise to the unique properties of PdCoO2, we revealed its layer-resolved electronic structure combining standing-wave X-ray photoemission spectroscopy and ab initio many-body calculations. Experimentally, we have decomposed the measured VB spectrum into contributions from Pd and CoO2 layers. Computationally, we find that many-body interactions in Pd and CoO2 layers are highly different. Holes in the CoO2 layer interact strongly with charge-transfer excitons in the same layer, whereas holes in the Pd layer couple to plasmons in the Pd layer. Interestingly, we find that holes in states hybridized across both layers couple to both types of excitations (charge-transfer excitons or plasmons), with the intensity of photoemission satellites being proportional to the projection of the state onto a given layer. This establishes satellites as a sensitive probe for inter-layer hybridization. These findings pave the way towards a better understanding of complex many-electron interactions in layered quantum materials.

scholarly journals Electronic coupling in the F4-TCNQ/single-layer GaSe heterostructure

2019 ◽  
Vol 3 (8) ◽  
Author(s):  
Lama Khalil ◽  
Debora Pierucci ◽  
Evangelos Papalazarou ◽  
Julien Chaste ◽  
Mathieu G. Silly ◽  
...  
Keyword(s):  
Single Layer ◽  
Electronic Coupling
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