The DOI matches its Crossref record.
Novel Oxadiazole-Containing Polyfluorene with Efficient Blue Electroluminescence
Abstract
A novel oxdiazole-containing polyfluorene copolymer (PF−OXD) was synthesized by attaching two electron-deficient, 4- tert -butylphenyl-1,3,4-oxadiazole groups onto the C-9 position of the alternating fluorene unit to form a 3-D cardo-structure. This polymer possesses a very high glass transition temperature ( T g: 213 °C) and very good thermal stability due to its rigid cardo-linkage. The results from the photoluminescence measurements of the isothermally heated PF−OXD thin film (150 °C for 20 h) show that the commonly observed aggregate/excimer formation in polyfluorenes is very effectively suppressed in this polymer due to its 3-D structure and high T g . A double-layer LED device using this polymer as the emitting layer shows a bright blue emission with a low turn-on voltage at 5.3 V and a high brightness of 2770 cd/m 2 at a drive voltage of 10.8 V. The maximum external quantum efficiency is 0.52% at 537 cd/m 2 with a bias of 7.4 V. The improved device performance over that of poly(9,9-dioctylfluorene) (POF) may be due to better electron injection and transport in PF−OXD and the efficient energy transfer from the OXD side chain to the polyfluorene main chains.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Synthesis of Light-Emitting Conjugated Polymers for Applications in Electroluminescent Devices
Grimsdale, A. C., Leok Chan, K., Martin, R. E., Jokisz, P. G., & Holmes, A. B. (2009) · Chemical Reviews · doi:10.1021/cr000013v · Cited by 2,640
Electron Transport Materials for Organic Light-Emitting Diodes
Kulkarni, A. P., Tonzola, C. J., Babel, A., & Jenekhe, S. A. (2004) · Chemistry of Materials · doi:10.1021/cm049473l · Cited by 1,624
Organophosphorus π-Conjugated Materials
Baumgartner, T., & Réau, R. (2006) · Chemical Reviews · doi:10.1021/cr040179m · Cited by 1,113
Designing π-conjugated polymers for organic electronics
Guo, X., Baumgarten, M., & Müllen, K. (2013) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2013.09.005 · Cited by 836
Metadata
- Authors
- Wu, F.-I., Reddy, D. S., Shu, C.-F., Liu, M. S., & Jen, A. K.-Y.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-12-07
- Volume
- 15
- Issue
- 1
- Pages
- 269-274
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2008995981
- Cited by
- 172
- References
- 0
- FWCI
- 14.72
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Novel Oxadiazole-Containing Polyfluorene with Efficient Blue Electroluminescence. https://app.cochat.ai/papers/10.1021/cm020688+
- The paper
- Wu, F.-I., Reddy, D. S., Shu, C.-F., Liu, M. S., & Jen, A. K.-Y. (2003). Novel Oxadiazole-Containing Polyfluorene with Efficient Blue Electroluminescence. Chemistry of Materials. https://doi.org/10.1021/cm020688%2B
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
