Influence of Functional Diamino Organic Cations on the Stability, Electronic Structure, and Carrier Transport Properties of Three-Dimensional Hybrid Halide Perovskite

2020 ◽  
Vol 124 (12) ◽  
pp. 6796-6810 ◽  
Author(s):  
He Zhang ◽  
Dan Li ◽  
Bin Liu ◽  
Yuanhang Ma ◽  
Wangzhe Zhou ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transport Properties ◽  
Carrier Transport ◽  
Three Dimensional ◽  
Organic Cations ◽  
Halide Perovskite ◽  
The Stability ◽  
Carrier Transport Properties

Electronic Structure of Graphene-Based Materials and Their Carrier Transport Properties

2016 ◽  
pp. 401-421
Author(s):  
Wen Huang ◽  
Argo Nurbawono ◽  
Minggang Zeng ◽  
Gaurav Gupta ◽  
Gengchiau Liang
Keyword(s):  
Electronic Structure ◽  
Transport Properties ◽  
Carrier Transport ◽  
Carrier Transport Properties

scholarly journals Understanding the Intrinsic Carrier Transport in Highly Oriented Poly(3-hexylthiophene): Effect of Side Chain Regioregularity

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 815 ◽  
Author(s):  
Sanyin Qu ◽  
Chen Ming ◽  
Qin Yao ◽  
Wanheng Lu ◽  
Kaiyang Zeng ◽  
...  
Keyword(s):  
Transport Properties ◽  
Organic Semiconductors ◽  
High Performance ◽  
Carrier Mobility ◽  
Carrier Transport ◽  
Three Dimensional ◽  
Side Chain ◽  
Conductive Atomic Force Microscopy ◽  
Dynamics Simulations ◽  
Carrier Transport Properties

The fundamental understanding of the influence of molecular structure on the carrier transport properties in the field of organic thermoelectrics (OTEs) is a big challenge since the carrier transport behavior in conducting polymers reveals average properties contributed from all carrier transport channels, including those through intra-chain, inter-chain, inter-grain, and hopping between disordered localized sites. Here, combining molecular dynamics simulations and experiments, we investigated the carrier transport properties of doped highly oriented poly(3-hexylthiophene) (P3HT) films with different side-chain regioregularity. It is demonstrated that the substitution of side chains can not only take effect on the carrier transport edge, but also on the dimensionality of the transport paths and as a result, on the carrier mobility. Conductive atomic force microscopy (C-AFM) study as well as temperature-dependent measurements of the electrical conductivity clearly showed ordered local current paths in the regular side chain P3HT films, while random paths prevailed in the irregular sample. Regular side chain substitution can be activated more easily and favors one-dimensional transport along the backbone chain direction, while the irregular sample presents the three-dimensional electron hopping behavior. As a consequence, the regular side chain P3HT samples demonstrated high carrier mobility of 2.9 ± 0.3 cm2/V·s, which is more than one order of magnitude higher than that in irregular side chain P3HT films, resulting in a maximum thermoelectric (TE) power factor of 39.1 ± 2.5 μW/mK2 at room temperature. These findings would formulate design rules for organic semiconductors based on these complex systems, and especially assist in the design of high performance OTE polymers.

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