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Blue Light Emitting Polyphenylene Dendrimers with Bipolar Charge Transport Moieties [PDF]
Molecules, 2016 Two light-emitting polyphenylene dendrimers with both hole and electron transporting moieties were synthesized and characterized. Both molecules exhibited pure blue emission solely from the pyrene core and efficient surface-to-core energy transfers when ...
Guang Zhang +7 more
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Models of bipolar charge transport in polyethylene [PDF]
Journal of Applied Physics, 2006 We introduce and develop two bipolar transport models which are based on appreciably different physical assumptions regarding the distribution function in the energy levels of trap states. In the first model, conduction is described by an effective mobility of the carriers and the accumulation of stored space charge is taken into account through a ...
G Teyssèdre +2 more
exaly +7 more sources
EnergiesA cable accessory is a critical component in constructing high-voltage direct current (HVDC) power grids, and it is typically composed of multiple materials. Due to the discontinuity of the insulation medium, it is prone to failure. This study focuses on
Yuqi Liu, Xinjing Cai
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AIP Advances, 2023 The temperature-dependent electrical transport, Hall effect, and Seebeck properties of bulk-reduced graphene oxide (rGO) prepared by a chemical reduction process were investigated in a temperature range of 310–475 K. The bulk rGO contained bipolar charge
Keerati Maneesai +6 more
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Polarity control of 2D semiconductor for reconfigurable electronics [PDF]
Microsystems & NanoengineeringThe controllable modulation of carrier polarity in semiconductors is essential for enabling dynamic configurations in reconfigurable devices. Ambipolar two-dimensional (2D) semiconductors, characterized by their atomic-scale thickness and excellent gate ...
Xiaoqian He +12 more
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Modified Charge Transport Model Under High-Frequency Unipolar Square Wave Voltage
Frontiers in Materials, 2022 As the main insulation material of the power electronic transformer (PET), polyimide (PI) is easy to accumulate space charge under the continuous high-frequency pulse voltage, which will threaten the operation of PET and cause electric field distortion ...
Jianxiang Xie +4 more
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Molecules, 2022 Molecules with donor–spacer–acceptor configuration have been developed rapidly given their peculiar properties. How to utilize intermolecular interactions and charge transfers for solution-processed organic light-emitting diodes (OLEDs) greatly relies on
Wei Jiang +3 more
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High Voltage, 2020 The Maxwell–Wagner model and bipolar charge transport model both aim at describing the charge transport behaviours in dielectrics. The Maxwell–Wagner model performs well in calculating the polarisation current and electric field distribution, but it is ...
Hucheng Liang +5 more
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Study on space charge accumulation characteristics of 320 kV cross-linked polyethylene cable joints
Polymers and Polymer Composites, 2023 High-Voltage Direct Current (HVDC) cable accessories are the key equipment to connect HVDC cables, and also the weak link in the cable system. In order to investigate the transport characteristics of space charge in cable joints, a two-dimensional ...
Yuqi Liu, Xinjing Cai, Dan Zhang
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Constructing Donor-Resonance-Donor Molecules for Acceptor-Free Bipolar Organic Semiconductors
Research, 2021 Organic semiconductors with bipolar transporting character are highly attractive as they offer the possibility to achieve high optoelectronic performance in simple device structures.
He Jiang +9 more
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