New Crosslinkable Hole Conductors for Blue‐Phosphorescent Organic Light‐Emitting Diodes

Zacharias, Philipp; Gather, Malte C.; Rojahn, Markus; Nuyken, Oskar; Meerholz, Klaus

doi:10.1002/anie.200605055

Cited by 154 publications

(132 citation statements)

References 22 publications

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“…We emphasize that the findings we report here are general for oxetane-functionalized, cross-linkable materials, as verified by testing 20 different organic semiconductors including monomeric (x-MHTM) [26] and polymeric hole conductors (x-PHTM) [23] as well as cross-linkable emitting polymers (x-R, x-G, and x-B, see Supporting Information Fig. 1 for chemical structures).…”

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confidence: 58%

The Simple Way to Solution‐Processed Multilayer OLEDs – Layered Block‐Copolymer Networks by Living Cationic Polymerization

et al. 2009

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confidence: 58%

The Simple Way to Solution‐Processed Multilayer OLEDs – Layered Block‐Copolymer Networks by Living Cationic Polymerization

et al. 2009

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“…S1 and S6), which features a low highest occupied molecular orbital (HOMO) level [17] enabling space-charge-limited current (SCLC). The X-HTL also features a high hole mobility (m) of 3.5 Â 10 À4 cm 2 V À1 s À1 in trap-limited SCLC and a value of 10 À3 cm 2 V À1 s À1 for trap-free SCLC.…”

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confidence: 99%

A Lasing Organic Light‐Emitting Diode

et al. 2010

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“…In situ cross-linking reactions have also been explored to afford covalently bound structures that are highly resistant to processing solvents [11][12][13][14][15][16][17][18][19] . Despite their high mechanical robustness and compatibility with subsequent solution processing, polymers are plagued by limited reproducibility in the device performance because of batch-tobatch variations with respect to molecular weight, polydispersity, regioregularity and purity [20][21][22][23] .…”

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confidence: 99%

Solution-processed multilayer small-molecule light-emitting devices with high-efficiency white-light emission

et al. 2014

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Recent developments in the field of p-conjugated polymers have led to considerable improvements in the performance of solution-processed organic light-emitting devices (OLEDs). However, further improving efficiency is still required to compete with other traditional light sources. Here we demonstrate efficient solution-processed multilayer OLEDs using small molecules. On the basis of estimates from a solvent resistance test of small host molecules, we demonstrate that covalent dimerization or trimerization instead of polymerization can afford conventional small host molecules sufficient resistance to alcohols used for processing upper layers. This allows us to construct multilayer OLEDs through subsequent solution-processing steps, achieving record-high power efficiencies of 36, 52 and 34 lm W À 1 at 100 cd m À 2 for solution-processed blue, green and white OLEDs, respectively, with stable electroluminescence spectra under varying current density. We also show that the composition at the resulting interface of solution-processed layers is a critical factor in determining device performance.

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New Crosslinkable Hole Conductors for Blue‐Phosphorescent Organic Light‐Emitting Diodes

Cited by 154 publications

References 22 publications

The Simple Way to Solution‐Processed Multilayer OLEDs – Layered Block‐Copolymer Networks by Living Cationic Polymerization

The Simple Way to Solution‐Processed Multilayer OLEDs – Layered Block‐Copolymer Networks by Living Cationic Polymerization

A Lasing Organic Light‐Emitting Diode

Solution-processed multilayer small-molecule light-emitting devices with high-efficiency white-light emission

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