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Solution-processed nanographene distributed feedback lasers.

ABSTRACT: The chemical synthesis of nanographene molecules constitutes the bottom-up approach toward graphene, simultaneously providing rational chemical design, structure-property control and exploitation of their semiconducting and luminescence properties. Here, we report nanographene-based lasers from three zigzag-edged polycyclic aromatics. The devices consist of a passive polymer film hosting the nanographenes and a top-layer polymeric distributed feedback resonator. Both the active material and the laser resonator are processed from solution, key for the purpose of obtaining low-cost devices with mechanical flexibility. The prepared lasers show narrow linewidth (?5 pump pulses) and very low thresholds. These results represent a significant step forward in the field of graphene and broaden its versatility in low-cost devices implying light emission, such as lasers.

SUBMITTER: Bonal V

PROVIDER: S-EPMC6658550 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Solution-processed nanographene distributed feedback lasers.

Bonal Víctor V Muñoz-Mármol Rafael R Gordillo Gámez Fernando F Morales-Vidal Marta M Villalvilla José M JM Boj Pedro G PG Quintana José A JA Gu Yanwei Y Wu Jishan J Casado Juan J Díaz-García María A MA

Nature communications 20190725 1

The chemical synthesis of nanographene molecules constitutes the bottom-up approach toward graphene, simultaneously providing rational chemical design, structure-property control and exploitation of their semiconducting and luminescence properties. Here, we report nanographene-based lasers from three zigzag-edged polycyclic aromatics. The devices consist of a passive polymer film hosting the nanographenes and a top-layer polymeric distributed feedback resonator. Both the active material and the ...[more]

PMID: 31346182

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