Highly Efficient Single-Layer Polymer Ambipolar Light-Emitting Field-Effect Transistors

Autor: Michael C. Gwinner, Matthew Roberts, Henning Sirringhaus, Bodo H. Wallikewitz, Christopher R. McNeill, Richard H. Friend, Dinesh Kabra, Thomas J. K. Brenner

Publikováno v: Advanced Materials. 24:2728-2734

Single-layer polymer light-emitting field-effect transistors (LEFETs) that yield EQEs of >8% and luminance efficiencies >28 cd A(-1) are demonstrated. These values are the highest reported for LEFETs and amongst the highest values for fluorescent OLE

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::281c42a7789ad739547f475a3a0bd43b
https://doi.org/10.1002/adma.201104602

Cross-Linkable Polyspirobifluorenes: A Material Class Featuring Good OLED Performance and Low Amplified Spontaneous Emission Thresholds

Autor: Klaus Meerholz, Bodo H. Wallikewitz, Dirk Hertel

Publikováno v: Chemistry of Materials. 21:2912-2919

We report on an in-depth study of cross-linkable polyspirobifluorene (PSF) copolymers for organic lasing applications. We investigate the performance of the materials in organic light-emitting diodes (OLED) and the optically pumped amplified spontane

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f0e4f38f4f8b36fe049609c84575c19
https://doi.org/10.1021/cm900578h

Triplet dynamics in fluorescent polymer light-emitting diodes

Autor: Bodo H. Wallikewitz, Richard H. Friend, Dinesh Kabra, Simon Gélinas

Publikováno v: Physical Review B. 85

We report a study of the triplet exciton dynamics and their effect on the performance of fluorescent organic light-emitting diodes. These polymer light-emitting diodes comprise metal oxide, injection electrodes, and poly(9,9${}^{\ensuremath{'}}$-dioc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68ff1ea93577d5722e773347353cf85d
https://doi.org/10.1103/physrevb.85.045209

A nano-patterned photonic crystal laser with a dye-doped liquid crystal

Autor: Malik M. Qasim, Haider Butt, Alexander Lorenz, Doo-Hyun Ko, Stephen M. Morris, Timothy D. Wilkinson, Damian J. Gardiner, Harry J. Coles, Bodo H. Wallikewitz, Gehan A. J. Amaratunga, Philip J.W. Hands, Richard H. Friend, Flynn Castles

Publikováno v: Ko, D-H, Morris, S M, Lorenz, A, Castles, F, Butt, H, Gardiner, D J, Qasim, M M, Wallikewitz, B, Hands, P J W, Wilkinson, T D, Amaratunga, G, Coles, H J & Friend, R H 2013, ' A nano-patterned photonic crystal laser with a dye-doped liquid crystal ', Applied Physics Letters, vol. 103, no. 5, 051101 . https://doi.org/10.1063/1.4816243

Covering a nano-patterned titanium dioxide photonic crystal (PC) within a well-oriented film of dye-doped liquid crystal (LC), a distributed feedback laser is constructed whereby the emission characteristics can be manipulated in-situ using an electr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed68304a95d7fa997aa6dace9d0e3658
https://doi.org/10.1063/1.4816243

Sub-Micrometer Patterning of Amorphous- and β-Phase in a Crosslinkable Poly(9,9-dioctylfluorene): Dual-Wavelength Lasing from a Mixed-Morphology Device.

Autor: Kuehne, Alexander J. C., Kaiser, Markus, Mackintosh, Allan R., Wallikewitz, Bodo H., Hertel, Dirk, Pethrick, Richard A., Meerholz, Klaus

Publikováno v: Advanced Functional Materials; 7/8/2011, Vol. 21 Issue 13, p2564-2570, 7p