Compensating poly(3-hexylthiophene) reveals its doping density and its strong exciton quenching by free carriers

Advanced Materials
Ziqi Liang, Brian A Gregg

Abstract

Adding increasing quantities of an n-type compensating dopant, cobaltocene, to poly(3-hexylthiophene) reveals an almost perfect mirror symmetry between the conductivity and the luminescence intensity. The sharp minimum/maximum shows that the uncompensated p-type doping density is 1.2 × 10(18) cm(-3) and that excitons are strongly quenched by free charge carriers, not by bound charges.

References

Aug 9, 2001·Journal of the American Chemical Society·B A Gregg, R A Cormier
Mar 28, 1996·Chemical Reviews·Neil G. Connelly, William E. Geiger
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Jan 13, 2010·Chemical Reviews·Tracey M Clarke, James R Durrant
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May 25, 2011·ACS Applied Materials & Interfaces·Ziqi LiangBrian A Gregg
Jun 2, 2011·The Journal of Physical Chemistry Letters·Erin L RatcliffNeal R Armstrong

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Citations

Sep 19, 2017·Advanced Materials·Ian E Jacobs, Adam J Moulé
May 8, 2014·Advanced Materials·Oleksandr V MikhnenkoPaul W M Blom
Apr 26, 2013·Beilstein Journal of Nanotechnology·Thomas Kirchartz
Sep 5, 2013·Physical Chemistry Chemical Physics : PCCP·Lijia ChenQunliang Song
Mar 21, 2013·The Journal of Physical Chemistry Letters·Germà Garcia-BelmonteJuan Bisquert
Feb 21, 2013·The Journal of Physical Chemistry. a·Vsevolod I BorovkovYuri N Molin
May 26, 2018·The Journal of Physical Chemistry Letters·Kyu Hyung ParkDongho Kim
Jul 23, 2014·Accounts of Chemical Research·Brett M SavoieMark A Ratner

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