The chemical and structural origin of efficient p-type doping
We investigate the chemical and structural properties of solution-processed thin films of P3HT blended with p-type dopant F4TCNQ. The maximum in-plane electrical conductivity of doped films is observed at a molar doping fraction of 0.17, in agreement with the binding mechanism of F4TCNQ:P3HT complexes.
The chemical and structural origin of efficient p-type doping
For several years many have reported the efficient doping of OSCs using solution processable small molecules. In this work we focus on the p-type doping of a prototypical, high performance semiconducting polymer poly (3-hexylthiophene) (P3HT) using 7,7,8,8-tetracyano-2,3,5,6-tetrafluoroquinodimethane (F4TCNQ).
Site-specific chemical doping reveals electron atmospheres at
The chemical and structural origin of efficient p-type doping in P 3 HT. Org. Electron. 14, 1330–1336 (2013). Article CAS Google Scholar
The chemical and structural origin of efficient p-type doping
The chemical and structural origin of efficient p-type doping in P3HT Authors: Trieu Minh Duc National Economics University Chenchen Wang Heriot-Watt University Erin Antono Michael F. Toney...
Double doping of conjugated polymers with monomer
d–i, Chemical structures of p ... The chemical and structural origin of efficient p-type doping in P3HT. Org. Electron. 14, 1330–1336 (2013). Article CAS Google Scholar
- How does a strong doping regime affect doping efficiency?
- Thus the average doping efficiency is 2–3 orders of magnitude higher in the strong doping regime as compared to the weak doping regime. As the concentration further increases, the amount of ionized dopants also increases and reaches a maximum at a doping concentration of 0.17.
- Is p-type doping efficient?
- For several years many have reported the efficient doping of OSCs using solution processable small molecules. In this work we focus on the p-type doping of a prototypical, high performance semiconducting polymer poly (3-hexylthiophene) (P3HT) using 7,7,8,8-tetracyano-2,3,5,6-tetrafluoroquinodimethane (F4TCNQ).
- Does tetrafluorotetracyanoquinodimethane have a molar doping ratio?
- By means of optical spectroscopy, Kelvin probe, and conductivity measurements, we study the -type doping of the donor polymer poly (3-hexylthiophene), P3HT, with the molecular acceptor tetrafluorotetracyanoquinodimethane, F TCNQ, covering a broad range of molar doping ratios from the ppm to the percent regime.
- Why is molecular doping important in organic optoelectronics?
- Molecular doping is one of the most important tools to manipulate the electrical properties of conjugated polymers for application in organic optoelectronics. The polymer crystallinity and distribution position of the dopant crucially determine electrical conductivity of the doped polymer.
- How does f4tcnq affect the doping process?
- Although several groups have successfully doped semiconducting polymers using F4TCNQ , , , there still lacks a general understanding of the doping process and how physical factors such as dopant dissolution in the casting solution and the final thin film, complex formation and crystalline structure affect doping.
- What is the difference between doping and inorganic doping?
- Unlike doping in inorganic semiconductors, where host atoms are substituted by electron deficient (p-type) or electron rich (n-type) substitutes, doping in OSCs is achieved by the addition of a second species with appropriate molecular orbital energies leading to efficient ground-state charge transfer between OSCs and the dopant.
