Critical Role of Molecular Symmetry for Charge Transport Properties: A Paradigm Learned from Quinoidal Bithieno[3,4-b]thiophenes

2017 ◽  
Vol 29 (11) ◽  
pp. 4999-5008 ◽  
Author(s):  
Longbin Ren ◽  
Dafei Yuan ◽  
Eliot Gann ◽  
Yuan Guo ◽  
Lars Thomsen ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Critical Role ◽  
Molecular Symmetry

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.

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

Charge transport in organic crystals: Critical role of correlated fluctuations unveiled by analysis of Feynman diagrams

2015 ◽  
Vol 142 (14) ◽  
pp. 144503 ◽  
Author(s):  
Daniel M. Packwood ◽  
Kazuaki Oniwa ◽  
Tienan Jin ◽  
Naoki Asao
Keyword(s):  
Charge Transport ◽  
Critical Role ◽  
Feynman Diagrams ◽  
Organic Crystals

Charge transport properties in nanocomposite photoanodes of DSSCs: crucial role of electronic structure

2011 ◽  
Vol 57 (2) ◽  
pp. 20401 ◽  
Author(s):  
M. Samadpour ◽  
N. Taghavinia ◽  
A. Iraji-zad ◽  
M. Marandi ◽  
F. Tajabadi
Keyword(s):  
Electronic Structure ◽  
Charge Transport ◽  
Transport Properties ◽  
Crucial Role
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