Enhanced Charge-Carrier Transport through Shorter Carbon Nanotubes in Organic Photovoltaics

2014 ◽  
Vol 6 (3) ◽  
pp. 1640-1645 ◽  
Author(s):  
Xinbo C Lau ◽  
Zheqiong Wu ◽  
Somenath Mitra
Keyword(s):  
Carbon Nanotubes ◽  
Charge Carrier ◽  
Organic Photovoltaics ◽  
Carrier Transport ◽  
Charge Carrier Transport

scholarly journals Tunable Chemical Grafting of Three-Dimensional Poly (3, 4-ethylenedioxythiophene)/Poly (4-styrenesulfonate)-Multiwalled Carbon Nanotubes Composite with Faster Charge-Carrier Transport for Enhanced Gas Sensing Performance

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2470
Author(s):  
Hyojae Kim ◽  
Yeongseok Jang ◽  
Gyeong Won Lee ◽  
Seung Yun Yang ◽  
Jinmu Jung ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Carrier ◽  
Multiwalled Carbon Nanotubes ◽  
Carrier Transport ◽  
Gas Sensing ◽  
Three Dimensional ◽  
Charge Carrier Transport ◽  
Multiwalled Carbon ◽  
Gas Molecules ◽  
Sensing Performance

The three-dimensional volumetric application of conductive poly (3,4-ethylenedioxythiophene)/poly (4-styrenesulfonate) (PEDOT:PSS) to multiwalled carbon nanotubes (MWCNTs) has not been widely reported. In this study, the applicability of the 3D PEDOT:PSS-MWCNT composite for a gas sensor was investigated with different PEDOT:PSS concentrations. The gas-sensing performance of the 3D PEDOT:PSS-MWCNT composites was investigated using ethanol and carbon monoxide (CO) gas. Overall, in comparison with the pristine MWCNTs, as the PEDOT:PSS concentration increased, the 3D PEDOT:PSS-MWCNT composites exhibited increased conductivity and enhanced gas sensing performances (fast response and recovery times) to both ethanol and CO gases. Importantly, although the PEDOT:PSS coating layer reduced the number of sites for the adsorption and desorption of gas molecules, the charge-carrier transport between the gas molecules and MWCNTs was significantly enhanced. Thus, PEDOT:PSS can be chemically grafted to MWCNTs to enhance the connectivity and conductivity of a 3D network, leading to possible applications in gas sensors.

scholarly journals Enhanced Charge Carrier Transport in 2D Perovskites by Incorporating Single-Walled Carbon Nanotubes or Graphene

2019 ◽  
Vol 5 (1) ◽  
pp. 109-116
Author(s):  
Mauricio Solis de la Fuente ◽  
Sumanjeet Kaur ◽  
Qin Hu ◽  
Edward S. Barnard ◽  
Peter Dudenas ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Carrier ◽  
Carrier Transport ◽  
Single Walled Carbon Nanotubes ◽  
Charge Carrier Transport ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Limits of Charge Carrier Transport in Halide Perovskites Revealed by Optical-Pump Terahertz-Probe Spectroscopy

2019 ◽  
Author(s):  
Hannes Hempel ◽  
Andrei Petsiu ◽  
Martin Stolterfoht ◽  
Pascal Becker ◽  
Dieter Neher ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Transport ◽  
Charge Carrier Transport ◽  
Optical Pump ◽  
Halide Perovskites ◽  
Probe Spectroscopy

scholarly journals Impact of Tortuosity on Charge-Carrier Transport in Organic Bulk Heterojunction Blends

2017 ◽  
Vol 8 (5) ◽  
Author(s):  
Michael C. Heiber ◽  
Klaus Kister ◽  
Andreas Baumann ◽  
Vladimir Dyakonov ◽  
Carsten Deibel ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Transport ◽  
Bulk Heterojunction ◽  
Charge Carrier Transport

Charge Carrier Transport in Phenazine

1979 ◽  
Vol 53 (3-4) ◽  
pp. 271-280 ◽  
Author(s):  
S. C. Mathur ◽  
B. Kumar ◽  
Keya Roy
Keyword(s):  
Charge Carrier ◽  
Carrier Transport ◽  
Charge Carrier Transport

Electrical Characterization of the Graphene-SiC Heterojunction

2012 ◽  
Vol 717-720 ◽  
pp. 641-644
Author(s):  
Travis J. Anderson ◽  
Karl D. Hobart ◽  
Luke O. Nyakiti ◽  
Virginia D. Wheeler ◽  
Rachael L. Myers-Ward ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Charge Carrier ◽  
Graphene Sheet ◽  
Carrier Transport ◽  
Electrical Characterization ◽  
Epitaxial Graphene ◽  
Charge Carrier Transport ◽  
Semiconductor System ◽  
Significant Research

Graphene, a 2D material, has motivated significant research in the study of its in-plane charge carrier transport in order to understand and exploit its unique physical and electrical properties. The vertical graphene-semiconductor system, however, also presents opportunities for unique devices, yet there have been few attempts to understand the properties of carrier transport through the graphene sheet into an underlying substrate. In this work, we investigate the epitaxial graphene/4H-SiC system, studying both p and n-type SiC substrates with varying doping levels in order to better understand this vertical heterojunction.

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