Effect of alkyl chain spacer on charge transport in n-type dominant polymer semiconductors with a diketopyrrolopyrrole-thiophene-bithiazole acceptor–donor–acceptor unit

2017 ◽  
Vol 5 (14) ◽  
pp. 3616-3622 ◽  
Author(s):  
Hojeong Yu ◽  
Hyong Nam Kim ◽  
Inho Song ◽  
Yeon Hee Ha ◽  
Hyungju Ahn ◽  
...  
Keyword(s):  
Charge Transport ◽  
Alkyl Chain ◽  
Polymer Semiconductors ◽  
Donor Acceptor ◽  
P Type

In contrast with donor (D)–acceptor (A) p-type dominant polymer semiconductors, the shorter alkyl spacer (C1) is found to facilitate charge transport more effectively in A–D–A n-type dominant polymer semiconductors.

Organometallic Donor−Acceptor Conjugated Polymer Semiconductors: Tunable Optical, Electrochemical, Charge Transport, and Photovoltaic Properties

2009 ◽  
Vol 42 (3) ◽  
pp. 671-681 ◽  
Author(s):  
Pei-Tzu Wu ◽  
Tricia Bull ◽  
Felix S. Kim ◽  
Christine K. Luscombe ◽  
Samson A. Jenekhe
Keyword(s):  
Charge Transport ◽  
Conjugated Polymer ◽  
Photovoltaic Properties ◽  
Polymer Semiconductors ◽  
Donor Acceptor

scholarly journals Optimal n-Type Al-Doped ZnO Overlayers for Charge Transport Enhancement in p-Type Cu2O Photocathodes

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 338
Author(s):  
Hak Hyeon Lee ◽  
Dong Su Kim ◽  
Ji Hoon Choi ◽  
Young Been Kim ◽  
Sung Hyeon Jung ◽  
...  
Keyword(s):  
Charge Transport ◽  
Atomic Layer ◽  
Absorption Efficiency ◽  
Open Circuit ◽  
Band Alignment ◽  
Conformal Coating ◽  
Layer Deposition ◽  
Layer Stacking ◽  
Doped Zno ◽  
P Type

An effective strategy for improving the charge transport efficiency of p-type Cu2O photocathodes is the use of counter n-type semiconductors with a proper band alignment, preferably using Al-doped ZnO (AZO). Atomic layer deposition (ALD)-prepared AZO films show an increase in the built-in potential at the Cu2O/AZO interface as well as an excellent conformal coating with a thin thickness on irregular Cu2O. Considering the thin thickness of the AZO overlayers, it is expected that the composition of the Al and the layer stacking sequence in the ALD process will significantly influence the charge transport behavior and the photoelectrochemical (PEC) performance. We designed various stacking orders of AZO overlayers where the stacking layers consisted of Al2O3 (or Al) and ZnO using the atomically controlled ALD process. Al doping in ZnO results in a wide bandgap and does not degrade the absorption efficiency of Cu2O. The best PEC performance was obtained for the sample with an AZO overlayer containing conductive Al layers in the bottom and top regions. The Cu2O/AZO/TiO2/Pt photoelectrode with this overlayer exhibits an open circuit potential of 0.63 V and maintains a high cathodic photocurrent value of approximately −3.2 mA cm−2 at 0 VRHE for over 100 min.

Fused donor–acceptor π-conjugated diazatruxenones: synthesis and electronic properties

2018 ◽  
Vol 5 (11) ◽  
pp. 1748-1755 ◽  
Author(s):  
Angela Benito-Hernández ◽  
Mardia T. El-Sayed ◽  
Juan T. López Navarrete ◽  
M. Carmen Ruiz Delgado ◽  
Berta Gómez-Lor
Keyword(s):  
Charge Transport ◽  
Electronic Properties ◽  
Acceptor Molecule ◽  
Promising Candidate ◽  
Donor Acceptor

A promising candidate for ambipolar charge transport: a disk-like platform, diazatruxenone, as a novel, compact and planar donor–acceptor molecule.

Simulation of the Charge Transport Across Grain Boundaries in p-Type SrTiO 3 Ceramics

2002 ◽  
Vol 268 (1) ◽  
pp. 215-220
Author(s):  
Th. Hölbling ◽  
R. Waser
Keyword(s):  
Charge Transport ◽  
Grain Boundaries ◽  
P Type

scholarly journals The Influence of Morphology on the Charge Transport in Two-Phase Disordered Organic Systems

2015 ◽  
Vol 1737 ◽  
Author(s):  
Cristiano F. Woellner ◽  
Leonardo D. Machado ◽  
Pedro A. S. Autreto ◽  
José A. Freire ◽  
Douglas S. Galvão
Keyword(s):  
Charge Transport ◽  
Master Equation ◽  
Carrier Mobility ◽  
Three Dimensional ◽  
Domain Size ◽  
Threshold Field ◽  
Phase System ◽  
Two Phase ◽  
Donor Acceptor ◽  
Pauli Master Equation

ABSTRACTIn this work we use a three-dimensional Pauli master equation to investigate the charge carrier mobility of a two-phase system, which can mimic donor-acceptor and amorphous-crystalline bulk heterojunctions. Our approach can be separated into two parts: the morphology generation and the charge transport modeling in the generated blend. The morphology part is based on a Monte Carlo simulation of binary mixtures (donor/acceptor). The second part is carried out by numerically solving the steady-state Pauli master equation. By taking the energetic disorder of each phase, their energy offset and domain morphology into consideration, we show that the carrier mobility can have a significant different behavior when compared to a one-phase system. When the energy offset is non-zero, we show that the mobility electric field dependence switches from negative to positive at a threshold field proportional to the energy offset. Additionally, the influence of morphology, through the domain size and the interfacial roughness parameters, on the transport was also investigated.

Coupled polaron-electron charge transport in graphite functionalized polyaniline on cellulose: Metal free flexible p-type semiconductor

2018 ◽  
Vol 245 ◽  
pp. 96-101 ◽  
Author(s):  
Krishna Deb ◽  
Kamanashis Sarkar ◽  
Arun Bera ◽  
Ajit Debnath ◽  
Biswajit Saha
Keyword(s):  
Charge Transport ◽  
Electron Charge ◽  
Metal Free ◽  
Type Semiconductor ◽  
P Type

Strain-Insensitive Naphthalene-Diimide-Based Conjugated Polymers Through Sequential Regularity Control

2022 ◽  
Author(s):  
Yan-Cheng Lin ◽  
Kosuke Terayama ◽  
Keita Yoshida ◽  
Ping-Jui Yu ◽  
Pin-Hsiang Chueh ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Charge Transport ◽  
Structure Design ◽  
Naphthalene Diimide ◽  
Mechanical Durability ◽  
Donor Acceptor

Diversified structure design is applied to donor−acceptor (D−A)-type conjugated polymers (CPs) to improve their mobility−stretchability properties. Most methods that are capable of improving mechanical durability without sacrificing charge transport performance...

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