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One-Dimensional Fullerene/Porphyrin Cocrystals: Near-Infrared Light Sensing through Component Interactions. | LitMetric

AI Article Synopsis

  • * A novel type of one-dimensional D-A cocrystal was created from C and 3,5-TPP, which demonstrated the ability to sense near-infrared (NIR) light, unlike each component on its own.
  • * The C-3,5-TPP cocrystals, produced using a liquid-liquid interfacial precipitation method, exhibited n-type transport characteristics in organic phototransistors, highlighting their potential for innovative NIR-light-sensing applications.

Article Abstract

Recently, organic donor-acceptor (D-A) cocrystals have attracted special interest as functional materials because of their unique chemical and physical properties that are not exhibited by simple mixtures of their components. Herein, we report the preparation of one-dimensional novel D-A cocrystals from C and 5,10,15,20-tetrakis(3,5-dimethoxyphenyl)porphyrin (3,5-TPP); these cocrystals have near-infrared (NIR) light-sensing abilities, despite each of their component molecule individually having no NIR light-sensing properties. Micrometer-sized rectangular columnar C-3,5-TPP cocrystals were produced by a simple liquid-liquid interfacial precipitation method. The cocrystals exhibit a new strong transition in the NIR region indicative of the existence of charge-transfer interactions between C and 3,5-TPP in the cocrystals. The C-3,5-TPP cocrystals showed n-type transport characteristics with NIR light-sensing properties when the cocrystals were incorporated in bottom-gate/bottom-contact organic phototransistors, revealing that organic cocrystals with suitable charge-transfer interaction are useful as functional materials for the creation of novel NIR-light-sensing devices.

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Source
http://dx.doi.org/10.1021/acsami.9b18784DOI Listing

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