Role of Defective States in MgO nanoparticles on Photophysical properties and Photostability of MEH-PPV/MgO Nanocomposite

2021 ◽  
Author(s):  
Sangeetha Ashok Kumar ◽  
Jaya Seeli Shankar ◽  
K. P. Bhuvana ◽  
Sanjay K Nayak
Keyword(s):  
Metal Oxides ◽  
Charge Transport ◽  
Transport Properties ◽  
Conjugated Polymer ◽  
Photophysical Properties ◽  
Mgo Nanoparticles ◽  
Inorganic Nanocomposites ◽  
Optoelectronic Applications

Hybrid organic-inorganic nanocomposites employ metal oxides to improve the charge transport properties and stability of the conjugated polymer. They are considered one of the most interesting candidates for optoelectronic applications....

The role of electron-attracting substituents and molecular stacking motifs in the charge transport of tetraazapyrene derivatives

2019 ◽  
Vol 43 (15) ◽  
pp. 5706-5718 ◽  
Author(s):  
Ya-Rui Shi ◽  
Hui-Ling Wei ◽  
Yu-Fang Liu
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Photophysical Properties ◽  
Frontier Orbital ◽  
Orbital Energies ◽  
Molecular Stacking

The frontier orbital energies, charge transport properties and photophysical properties of TAPy derivatives were theoretically investigated by means of DFT.

scholarly journals Mechanical and Charge Transport Properties of Alkanethiol Self-Assembled Monolayers on a Au(111) Surface:  The Role of Molecular Tilt

Langmuir ◽  
2008 ◽  
Vol 24 (5) ◽  
pp. 2219-2223 ◽  
Author(s):  
Yabing Qi ◽  
Imma Ratera ◽  
Jeong Y. Park ◽  
Paul D. Ashby ◽  
Su Ying Quek ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Band bending in conjugated polymer films: role of morphology and implications for bulk charge transport characteristics

2017 ◽  
Vol 5 (30) ◽  
pp. 7446-7451 ◽  
Author(s):  
J. K. Wenderott ◽  
Ban Xuan Dong ◽  
Peter F. Green
Keyword(s):  
Charge Transport ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Kelvin Probe Force Microscopy ◽  
Kelvin Probe ◽  
Band Bending ◽  
Force Microscopy ◽  
Bending Effect ◽  
Bulk Charge

The band bending effect depends on the morphology of the conjugated polymer as studied by Kelvin probe force microscopy.

Photophysical properties of quinoxaline-fused [7]carbohelicene derivatives

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 72907-72915 ◽  
Author(s):  
Chunyu Liu ◽  
Yanling Si ◽  
Xiumei Pan ◽  
Guochun Yang
Keyword(s):  
Circular Dichroism ◽  
Nonlinear Optics ◽  
Charge Transport ◽  
Transport Properties ◽  
Photophysical Properties ◽  
Electronic Circular Dichroism ◽  
First Time ◽  
Circular Dichroïsm

The electronic circular dichroism, UV-Vis absorption, nonlinear optics, and charge transport properties of novel quinoxaline-fused 7-carbohelicene derivatives have been investigated for the first time.

Ion Gel Dynamic Templates for Large Modulation of Morphology and Charge Transport Properties of Solution-Coated Conjugated Polymer Thin Films

2019 ◽  
Vol 11 (25) ◽  
pp. 22561-22574 ◽  
Author(s):  
Erfan Mohammadi ◽  
Chuankai Zhao ◽  
Fengjiao Zhang ◽  
Ge Qu ◽  
Seok-Heon Jung ◽  
...  
Keyword(s):  
Thin Films ◽  
Charge Transport ◽  
Transport Properties ◽  
Conjugated Polymer ◽  
Polymer Thin Films ◽  
Ion Gel

scholarly journals Deciphering the effect of traps on electronic charge transport properties of methylammonium lead tribromide perovskite

2020 ◽  
Vol 6 (37) ◽  
pp. eabb6393
Author(s):  
Artem Musiienko ◽  
Jindřich Pipek ◽  
Petr Praus ◽  
Mykola Brynza ◽  
Eduard Belas ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Charge Transport ◽  
Transport Properties ◽  
Critical Role ◽  
Charge Carriers ◽  
Electronic Charge ◽  
Free Charge ◽  
Optoelectronic Materials ◽  
Halide Perovskites

Halide perovskites have undergone remarkable developments as highly efficient optoelectronic materials for a variety of applications. Several studies indicated the critical role of defects on the performance of perovskite devices. However, the parameters of defects and their interplay with free charge carriers remain unclear. In this study, we explored the dynamics of free holes in methylammonium lead tribromide (MAPbBr3) single crystals using the time-of-flight (ToF) current spectroscopy. By combining ToF spectroscopy and Monte Carlo simulation, three energy states were detected in the bandgap of MAPbBr3. In addition, we found the trapping and detrapping rates of free holes ranging from a few microseconds to hundreds of microseconds. Contrary to previous studies, we revealed a strong detrapping activity of traps. We showed that these traps substantially affect the transport properties of MAPbBr3, including mobility and mobility-lifetime product. Our results provide an insight on charge transport properties of perovskite semiconductors.

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