Chemically fixed p-n heterojunctions for polymer electronics by means of covalent B-F bond formation.

Nature Materials
Corey V HovenGuillermo C Bazan

Abstract

Widely used solid-state devices fabricated with inorganic semiconductors, including light-emitting diodes and solar cells, derive much of their function from the p-n junction. Such junctions lead to diode characteristics and are attained when p-doped and n-doped materials come into contact with each other. Achieving bilayer p-n junctions with semiconducting polymers has been hindered by difficulties in the deposition of thin films with independent p-doped and n-doped layers. Here we report on how to achieve permanently fixed organic p-n heterojunctions by using a cationic conjugated polyelectrolyte with fluoride counteranions and an underlayer composed of a neutral conjugated polymer bearing anion-trapping functional groups. Application of a bias leads to charge injection and fluoride migration into the neutral layer, where irreversible covalent bond formation takes place. After the initial charging and doping, one obtains devices with no delay in the turn on of light-emitting electrochemical behaviour and excellent current rectification. Such devices highlight how mobile ions in organic media can open opportunities to realize device structures in ways that do not have analogies in the world of silicon and promise new opportuni...Continue Reading

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Citations

Feb 26, 2016·ACS Applied Materials & Interfaces·Sandra JenatschRoland Hany
Aug 25, 2016·ACS Applied Materials & Interfaces·Julia FrohleiksEkaterina Nannen
Sep 14, 2017·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Gulsen TurkogluTuran Ozturk
Sep 14, 2016·Advanced Materials·Hong WangChoongho Yu
Jun 30, 2011·Macromolecular Rapid Communications·Dipanwita MajumdarShyamal K Saha
Jan 4, 2012·Advanced Materials·Daniel TorderaHenk J Bolink
Oct 13, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Rebecca C NeuDouglas W Stephan
May 26, 2017·Topics in Current Chemistry·Lu WangDong Xiang
Aug 14, 2012·Angewandte Chemie·Rubén D CostaNicola Armaroli
Aug 31, 2016·Topics in Current Chemistry·Shi Tang, Ludvig Edman
Sep 12, 2012·Nanoscale·Guangxue FengBin Liu
Jul 11, 2012·Angewandte Chemie·Juan F AranedaMasood Parvez
Jan 29, 2019·Advanced Materials·Xing ZhaoBartosz A Grzybowski
Nov 22, 2016·Advanced Materials·Dongxin MaLian Duan
Dec 22, 2012·Journal of the American Chemical Society·Stephan van ReenenHenk J Bolink
Dec 23, 2011·Journal of the American Chemical Society·Jiang LiuMagnus Berggren
Sep 14, 2010·Journal of the American Chemical Society·Stephan van ReenenMartijn Kemerink
Dec 15, 2010·Organic Letters·Zachary M HudsonSuning Wang
Jul 8, 2014·ACS Applied Materials & Interfaces·Jiang LiuMagnus Berggren
May 20, 2011·Journal of the American Chemical Society·Pangkuan ChenFrieder Jäkle
Dec 3, 2010·ACS Applied Materials & Interfaces·Martijn Lenes, Henk J Bolink

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