DataVXACS Applied Materials & InterfacesPaper
journal article·2017-11-01

Steric-Hindrance-Functionalized Polydiarylfluorenes: Conformational Behavior, Stabilized Blue Electroluminescence, and Efficient Amplified Spontaneous Emission

Lubing Bai, Bin Liu, Yamin Han, Mengna Yu, Jiong Wang, Xinwen Zhang, Changjin Ou, Jinyi Lin, Wensai Zhu, Linghai Xie, Chengrong Yin, Jianfeng Zhao, Jianpu Wang, Donal D. C. Bradley, Wei Huang

ACS Applied Materials & Interfaces· Volume 9· Issue 43
Publisher page
Source abstract

Abstract

Control of the hierarchical molecular organization of polydiarylfluorenes by synthetic strategies is significant for optimizing photophysical properties as well as the performance of light-emitting devices. Herein, for the suppression of molecular aggregation and enhancement of luminescence efficiency, a series of steric units were introduced into polydiarylfluorenes by copolymerization, with the aim of integrating the advantages of the steric-hindrance effect and of the β-phase. Optical and Raman spectroscopies revealed a β-phase conformation for a polymer copolymerized with spiro[fluorene-9,9′-xanthene] (SFX), with photoluminescence (PL) peaks at 454, 482, and 517 nm. Moreover, the morphological stability and electroluminescence (EL) stability were also improved without compromising the performance of the polymer light-emitting diodes (PLEDs). Furthermore, three steric-hindrance-functionalized copolymers showed significantly decreased thresholds for amplified spontaneous emission ( E th ASE ) and enhanced stability following thermal annealing treatment. These results indicate that steric-hindrance functionalization is a superior approach to improve the overall stability and optoelectronic properties for blue-light-emitting π-conjugated polymers.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersElectronic materialsMaterials processing

OpenAlex topics: Luminescence and Fluorescent Materials · Organic Electronics and Photovoltaics · Polydiacetylene-based materials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China

Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China

Departments of Engineering Science and Physics and Division of Mathematical, Physical and Life Sciences, Oxford University, 9 Parks Road, Oxford OX1 3PD, United Kingdom

Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an, Shaanxi 710072, China

Funding

Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · Priority Academic Program Development of Jiangsu Higher Education Institutions · State Key Laboratory of Supramolecular Structure and Materials, Jilin University · Synergetic Innovation Center for Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications

References (47)

Show source-provided references
1. 10.1038/nature2010210.1038/nature20102 ↗
2. 10.1021/cm401640v10.1021/cm401640v ↗
3. 10.1038/nmat471710.1038/nmat4717 ↗
4. 10.1021/ja051891j10.1021/ja051891j ↗
5. 10.1021/acsami.6b1134810.1021/acsami.6b11348 ↗
6. 10.1021/acs.macromol.6b0221610.1021/acs.macromol.6b02216 ↗
7. 10.1021/acsmacrolett.5b0013310.1021/acsmacrolett.5b00133 ↗
8. 10.1038/nmat216510.1038/nmat2165 ↗
9. 10.1002/(SICI)1521-4095(200006)12:11<828::AID-ADMA828>3.0.CO;2-H10.1002/(SICI)1521-4095(200006)12:11<828::AID-ADMA828>3.0.CO;2-H ↗
10. 10.1002/anie.20150514110.1002/anie.201505141 ↗
11. 10.1021/acs.macromol.6b0165010.1021/acs.macromol.6b01650 ↗
12. 10.1038/nmat75010.1038/nmat750 ↗
13. 10.1038/nmat76010.1038/nmat760 ↗
14. 10.1021/am402349v10.1021/am402349v ↗
15. 10.1002/adfm.20040010210.1002/adfm.200400102 ↗
16. 10.1002/marc.20160018810.1002/marc.201600188 ↗
17. 10.1002/adfm.20050002310.1002/adfm.200500023 ↗
18. 10.1021/acs.jpcc.6b0137510.1021/acs.jpcc.6b01375 ↗
19. 10.1002/adma.20060108010.1002/adma.200601080 ↗
20. 10.1002/adma.20120055910.1002/adma.201200559 ↗
21. 10.1039/C4TC02474E10.1039/C4TC02474E ↗
22. 10.1016/j.progpolymsci.2012.02.00310.1016/j.progpolymsci.2012.02.003 ↗
23. 10.1021/ma500407m10.1021/ma500407m ↗
24. 10.1021/ma050833f10.1021/ma050833f ↗
25. 10.1002/adfm.20030436010.1002/adfm.200304360 ↗
26. 10.1021/ma021614m10.1021/ma021614m ↗
27. 10.1021/ma402585n10.1021/ma402585n ↗
28. 10.1002/adfm.20070017510.1002/adfm.200700175 ↗
29. 10.1002/adfm.20120367510.1002/adfm.201203675 ↗
30. 10.1021/ol048709o10.1021/ol048709o ↗
31. 10.1021/acsami.6b0524710.1021/acsami.6b05247 ↗
32. 10.1039/C6PY01995A10.1039/C6PY01995A ↗
33. 10.1021/ja801422n10.1021/ja801422n ↗
34. 10.1021/ma020405z10.1021/ma020405z ↗
35. 10.1021/cm403952210.1021/cm4039522 ↗
36. 10.1002/chem.20160588510.1002/chem.201605885 ↗
37. 10.1002/adfm.20150133710.1002/adfm.201501337 ↗
38. 10.1002/adma.20060090110.1002/adma.200600901 ↗
39. 10.1002/adma.20150628610.1002/adma.201506286 ↗
40. 10.1021/acsami.6b0921110.1021/acsami.6b09211 ↗
41. 10.1007/BF0321852610.1007/BF03218526 ↗
42. 10.1039/C3TC32441A10.1039/C3TC32441A ↗
43. 10.1021/ol060871z10.1021/ol060871z ↗
44. 10.1002/macp.20140056810.1002/macp.201400568 ↗
45. 10.1103/PhysRevLett.94.10740210.1103/PhysRevLett.94.107402 ↗
46. 10.1002/adfm.20080029910.1002/adfm.200800299 ↗
47. 10.1038/srep3456510.1038/srep34565 ↗