Para-sexiphenyl-CdSe Nanocrystals Hybrid Light Emitting Diodes with Optimized Layer Thickness and Interfaces

Simbrunner, Clemens; Hernandez‐Sosa, Gerardo; Baumgartner, Eugen; Hesser, Günter; Roither, J.; Heiß, Wolfgang; Sitter, H.

doi:10.1557/proc-1154-b10-26

Cited by 1 publication

(1 citation statement)

References 9 publications

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“…The molecule para-hexaphenyl (p-6P, C 36 H 26 ) serves as a well-characterized and investigated representative of p-oligophenyls [32][33][34][35][36][37][38][39][40]. In particular, its high-energy gap (3.1 eV) [41,42] between the highest occupied molecular orbital and the lowest unoccupied molecular orbital and consequently its blue electroluminescence emission recommends p-6P for multicolour OLED displays [43,44]. Moreover, p-oligo-phenyls provide high thermal stability [32] and quantum yield [45].…”

Section: Para-hexaphenyl (P-6p)mentioning

confidence: 99%

Epitaxial growth of sexi-thiophene and para-hexaphenyl and its implications for the fabrication of self-assembled lasing nano-fibres

Simbrunner

2013

Semicond. Sci. Technol.

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Over the last few years, epitaxially grown self-assembled organic nano-structures became of increasing interest due to their high potential for implementation within opto-electronic devices. Exemplarily, the epitaxial growth of the rod-like molecules para-hexaphenyl (p-6P) and α-sexi-thiophene (6T) is discussed within this review. Both molecules tend to crystallize in highly asymmetric elongated entities which are also called nano-fibres. It is demonstrated that the obtained needle orientations and morphologies result from a complex interplay between various parameters e.g. substrate surface symmetry, molecular adsorption, crystal structure and contact plane. The interplay and its implications on the fabrication of self-assembled waveguiding nano-fibres and optical resonator structures are discussed and substantiated by a comparison with the reported literature. In further consequence, it is demonstrated that a precise control on the molecular adsorption geometry and the crystal contact plane represents a fundamental key parameter for the fabrication of self-assembled nano-fibres. As both parameters are basically determined by the chosen molecule-substrate material couple, the possible spectrum of molecular building blocks for the fabrication of waveguiding and lasing nano-structures can be predicted by the discussed growth model. A possible expansion of this common valid concept is presented by the utilization of organic-organic heteroepitaxy. Based on the reported p-6P/6T heterostructures which have been fabricated on various substrate surfaces, it is substantiated that the fabrication of organic-organic interfaces can be effectively used to gain control on the molecular adsorption geometry. As the proposed strategy still lacks a precise control of the obtained crystal contact plane, further strategies are discussed which potentially lead to a controlled fabrication of opto-electronic devices based on self-assembled organic nano-structures.

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Section: Para-hexaphenyl (P-6p)mentioning

confidence: 99%

Epitaxial growth of sexi-thiophene and para-hexaphenyl and its implications for the fabrication of self-assembled lasing nano-fibres

Simbrunner

2013

Semicond. Sci. Technol.

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Para-sexiphenyl-CdSe Nanocrystals Hybrid Light Emitting Diodes with Optimized Layer Thickness and Interfaces

Cited by 1 publication

References 9 publications

Epitaxial growth of sexi-thiophene and para-hexaphenyl and its implications for the fabrication of self-assembled lasing nano-fibres

Epitaxial growth of sexi-thiophene and para-hexaphenyl and its implications for the fabrication of self-assembled lasing nano-fibres

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