Polarized Emission and Optical Waveguide in Crystalline Perylene Diimide Microwires

Bao, Qiaoliang; Goh, Bee Min; Yan, Bin; Yu, Ting; Shen, Zexiang; Loh, Kian Ping

doi:10.1002/adma.201000731

Cited by 152 publications

(123 citation statements)

References 27 publications

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“…2 (C and G) indicate that the OPV-A and OPV-B NWs are single crystals growing along the [101] and [100] directions, respectively. The single-crystal nanostructures would exhibit excellent luminescence properties with very few defects in the material and facilitate optical waveguiding and confinement ( 41 , 42 ). The optical propagation losses of the single-crystal NWs of OPV-A and OPV-B are as low as 0.0107 and 0.0071 dB/μm, respectively (fig.…”

Section: Resultsmentioning

confidence: 99%

Dual-color single-mode lasing in axially coupled organic nanowire resonators

et al. 2017

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Section: Resultsmentioning

confidence: 99%

Dual-color single-mode lasing in axially coupled organic nanowire resonators

et al. 2017

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“…The first diffraction peak of PTCDIs micro/nanostructures is assigned as (001) and the remaining higher order peaks as (00l), which are well consistent with reported diffraction patterns of other n-alkyl 105 PTCDIs. [42][43][44][45] The multiple orders of reflection, consistent with a single preferred orientation, indicate the micro/nanostructures are implying that π-π stacking exists in the sample. 46 Although the d- 35 spacing is consistent with that of reported PTCDIs molecules, the π-π stacking distance is slightly larger than that of perylene dianhydride molecules (3.23 Å).…”

Section: Resultsmentioning

confidence: 99%

Alkylsilane-functionalized perylenediimide derivatives with differential gas sensing properties

et al. 2015

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In this contribution, four perylenediimide derivatives (PTCDIs) with different lengths and branched point of alkyl chain on bay region were prepared in order to probe the effect of alkyl chains on sensing performance. Studies on their sensing properties in hydrazine vapor revealed that about 4 orders of the magnitude in increased current was achieved for TPSA. This value is ca. 2, 2 and 23 times higher than that of DMB, TMSA and TESA, respectively. The differential response to the hydrazine vapor for these 10 PTCDIs gas sensors is less dependent of their surface area and morphologies. A well-ordered layer structure with smaller interplanar spacing allows TPSA possessing highly efficient sensing performance. A similar face-face packing mode and torsional angle of DMB and TMSA lead to both of them exhibiting almost same sensing performance in spite of the differences in interplanar spacing. While a greater torsional angle and head-to-tail aggregated modes with a greater interplanar spacing induce the less 15 efficient sensing performance of TESA sensors. This study indicates the length and branched point of alkyl silane on bay region have significant impact on performance of PTCDIs gas sensing devices by modulating torsional angle, interplanar spacing and stacking modes. 75

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“…58 Additionally, an electrically modulated ultralong optical waveguide, based on 1D microwires (lengths of several hundred micrometers to millimeters) of PDI-C8, has been fabricated by template-assisted assembly on the surface of graphene oxide. 133 Generally, H-type aggregates of PDIs have been demonstrated to be more suitable for optical applications than Jaggregates. 134 However, although π−π stacking can facilitate Chem.…”

Section: Linear Optoelectronicsmentioning

confidence: 99%