Electron accepting naphthalene bisimide ligand architectures for modulation of π–π stacking in nanocrystal hybrid materials

2020 ◽  
Vol 5 (11) ◽  
pp. 1509-1514
Author(s):  
Katherine C. Elbert ◽  
Mohammad M. Taheri ◽  
Natalie Gogotsi ◽  
Jungmi Park ◽  
Jason B. Baxter ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Quantum Dot ◽  
Hybrid Materials ◽  
Π Stacking ◽  
Surface Ligand

Quantum dot surface ligand configuration effects on electron transfer.

Light-Triggered Switching of Quantum Dot Photoluminescence through Excited-State Electron Transfer to Surface-Bound Photochromic Molecules

Nano Letters ◽  
2021 ◽  
Author(s):  
Suyog Padgaonkar ◽  
Christopher T. Eckdahl ◽  
Jakub K. Sowa ◽  
Rafael López-Arteaga ◽  
Dana E. Westmoreland ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Quantum Dot ◽  
State Electron ◽  
Photochromic Molecules

scholarly journals Electron transfer from the barrier in InAs/GaAs quantum dot-well structure

2019 ◽  
Vol 114 ◽  
pp. 113629 ◽  
Author(s):  
I. Filikhin ◽  
Th. Peterson ◽  
B. Vlahovic ◽  
S.P. Kruchinin ◽  
Yu.B. Kuzmichev ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Quantum Dot ◽  
Gaas Quantum Dot

Voltammetry and Electron-Transfer Dynamics in a Molecular Melt of a 1.2 nm Metal Quantum Dot

2003 ◽  
Vol 125 (5) ◽  
pp. 1182-1183 ◽  
Author(s):  
Dongil Lee ◽  
Robert L. Donkers ◽  
Joseph M. DeSimone ◽  
Royce W. Murray
Keyword(s):  
Electron Transfer ◽  
Quantum Dot

Preparation and Characterization of Glycyrrhizin-Graphene Hybrid Materials

2012 ◽  
Vol 531 ◽  
pp. 145-148
Author(s):  
Zong Hua Wang ◽  
Yan Li Gao ◽  
Jian Fei Xia ◽  
Fei Fei Zhang ◽  
Yan Zhi Xia ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Hybrid Materials ◽  
Model Compound ◽  
Carbon Electrode ◽  
The Novel ◽  
Electron Transfer Process ◽  
Efficient Energy ◽  
Sandwich Construction ◽  
Photo Induced Electron Transfer

A glycyrrhizin decorated graphene hybrid materials (GL-G) was synthesized, which is a layer-to-layer sandwich construction. The results of characterization indicate that a photo induced electron transfer process or efficient energy transferring along the GL-G interface. Furthermore, the as-made hybrid material was used as a modifier of the glassy carbon electrode to construct a sensor (GL-G/GCE). Using p-nitrophenol as a model compound, the novel sensor demonstrated a highly enhanced electrochemical activity for it. The peak current of p-nitrophenol was significantly improved at the sensor.

scholarly journals Ultrafast Two-Electron Transfer in a CdS Quantum Dot–Extended-Viologen Cyclophane Complex

2016 ◽  
Vol 138 (19) ◽  
pp. 6163-6170 ◽  
Author(s):  
Ryan M. Young ◽  
Stephen C. Jensen ◽  
Kedy Edme ◽  
Yilei Wu ◽  
Matthew D. Krzyaniak ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Quantum Dot ◽  
Cds Quantum Dot

scholarly journals Preparation and Characterization of Montmorillonite/PEDOT-PSS and Diatomite/PEDOT-PSS Hybrid Materials. Study of Electrochemical Properties in Acid Medium

2020 ◽  
Vol 4 (2) ◽  
pp. 51 ◽  
Author(s):  
Mohamed Kiari ◽  
Raúl Berenguer ◽  
Francisco Montilla ◽  
Emilia Morallón
Keyword(s):  
Electron Transfer ◽  
Electrochemical Properties ◽  
Hybrid Materials ◽  
Environmental Remediation ◽  
Electroactive Material ◽  
Physico Chemical ◽  
Emerging Pollutant ◽  
Transfer Capability ◽  
Potential Applications ◽  
Concentration Sensitivity

The hybridization of clay minerals with conducting polymers receives great interest for different potential applications, including environmental remediation. This work studies and compares the electrochemical properties of two different clays, montmorillonite (Mont) and diatomite (Diat), and their respective clay/PEDOT-PSS hybrid materials in H2SO4 medium. The hybrid materials were prepared by electropolymerization of EDOT in the presence of PSS. The physico-chemical and electrochemical properties of both clays were analyzed by different techniques, and the influence of the clay properties on electropolymerization and the electroactivity of the resulting clay/PEDOT-PSS hybrids was investigated. Specifically, the Fe2+/Fe3+ redox probe and the oxidation of diclofenac, as a model pharmaceutical emerging pollutant, were used to test the electron transfer capability and oxidative response, respectively, of the clay/PEDOT-PSS hybrids. The results demonstrate that, despite its low electrical conductivity, the Mont is an electroactive material itself with good electron-transfer capability. Conversely, the Diat shows no electroactivity. The hybridization with PEDOT generally enhances the electroactivity of the clays, but the clay properties affect the electropolymerization efficiency and hybrids electroactivity, so the Mont/PEDOT displays improved electrochemical properties. It is demonstrated that clay/PEDOT-PSS hybrids exhibit diclofenac oxidation capability and diclofenac concentration sensitivity.

Ultrastable CsPbBr 3 Perovskite Quantum Dot and Their Enhanced Amplified Spontaneous Emission by Surface Ligand Modification

Small ◽  
2019 ◽  
pp. 1901173 ◽  
Author(s):  
Dongdong Yan ◽  
Tongchao Shi ◽  
Zhigang Zang ◽  
Tingwei Zhou ◽  
Zhengzheng Liu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Ligand Modification ◽  
Surface Ligand

scholarly journals Supramolecular Complexes of Graphene Oxide with Porphyrins: An Interplay between Electronic and Magnetic Properties

Molecules ◽  
2019 ◽  
Vol 24 (4) ◽  
pp. 688 ◽  
Author(s):  
Kornelia Lewandowska ◽  
Natalia Rosiak ◽  
Andrzej Bogucki ◽  
Judyta Cielecka-Piontek ◽  
Mikołaj Mizera ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Graphene Oxide ◽  
Hybrid Materials ◽  
Π Stacking ◽  
Drastic Increase ◽  
Unpaired Electrons ◽  
The Difference ◽  
The Fourier Transform ◽  
Supramolecular Aggregates ◽  
Selection Of

Graphene oxide (GO) was modified by two modified porphyrins (THPP and TCPP) to form GO–porphyrin hybrids. Spectroscopic measurements demonstrated the formation of stable supramolecular aggregates when mixing two components in solution. The Fourier transform infrared (FTIR) and Raman scattering measurements confirm π-stacking between hydrophobic regions of GO nanoflakes and porphyrin molecules. On the number and the kind of paramagnetic centers generated in pristine GO samples, which originate from spin anomalies at the edges of aromatic domains within GO nanoflakes. More significant changes in electronic properties have been observed in hybrid materials. This is particularly evident in the drastic increase in the number of unpaired electrons for the THPP-GO sample and the decrease in the number of unpaired electrons for the TCPP-GO. The difference of paramagnetic properties of hybrid materials is a consequence of π-stacking between GO and porphyrin rings. An interesting interplay between modifiers and the surface of GO leads to a significant change in electronic structure and magnetic properties of the designed hybrid materials. Based on the selection of molecular counterpart we can affect the behavior of hybrids upon light irradiation in a different manner, which may be useful for the applications in photovoltaics, optoelectronics, and spintronics.

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