Unknown

Dataset Information

0

Intrinsic Properties of Single Graphene Nanoribbons in Solution: Synthetic and Spectroscopic Studies.


ABSTRACT: We report a novel type of structurally defined graphene nanoribbons (GNRs) with uniform width of 1.7 nm and average length up to 58 nm. These GNRs are decorated with pending Diels-Alder cycloadducts of anthracenyl units and N- n-hexadecyl maleimide. The resultant bulky side groups on GNRs afford excellent dispersibility with concentrations of up to 5 mg mL-1 in many organic solvents such as tetrahydrofuran (THF), two orders of magnitude higher than the previously reported GNRs. Multiple spectroscopic studies confirm that dilute dispersions in THF (<0.1 mg mL-1) consist mainly of nonaggregated ribbons, exhibiting near-infrared emission with high quantum yield (9.1%) and long lifetime (8.7 ns). This unprecedented dispersibility allows resolving in real-time ultrafast excited-state dynamics of the GNRs, which displays features of small isolated molecules in solution. This study achieves a breakthrough in the dispersion of GNRs, which opens the door for unveiling obstructed GNR-based physical properties and potential applications.

SUBMITTER: Huang Y 

PROVIDER: S-EPMC6643163 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

altmetric image

Publications


We report a novel type of structurally defined graphene nanoribbons (GNRs) with uniform width of 1.7 nm and average length up to 58 nm. These GNRs are decorated with pending Diels-Alder cycloadducts of anthracenyl units and N- n-hexadecyl maleimide. The resultant bulky side groups on GNRs afford excellent dispersibility with concentrations of up to 5 mg mL<sup>-1</sup> in many organic solvents such as tetrahydrofuran (THF), two orders of magnitude higher than the previously reported GNRs. Multip  ...[more]

Similar Datasets

| S-EPMC8162120 | biostudies-literature
| S-EPMC4513291 | biostudies-literature
| S-EPMC4133719 | biostudies-literature
| S-EPMC6294761 | biostudies-literature
| S-EPMC5924368 | biostudies-literature
| S-EPMC3369907 | biostudies-literature
| S-EPMC5431792 | biostudies-literature
| S-EPMC4649678 | biostudies-other
| S-EPMC5315012 | biostudies-literature
| S-EPMC2934897 | biostudies-literature