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Synthesis and photovoltaic application of NIR-emitting perylene-monoimide dyes with large Stokes-shift.

ABSTRACT: An efficient Sonogashira coupling protocol is developed for tetra-alkynylation at the bay and peri-positions of the perylene-monoimide (PMI) dye in its PMI(Br)₄ form. The absorption band for these PMI dyes covered from the visible to Near-infrared (NIR) region and PMI(NMe₂)₄ is found to exhibit a record-breaking Stokes-shifted NIR emission with good photovoltaic properties.

SUBMITTER: Sharma V

PROVIDER: S-EPMC9072103 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Synthesis and photovoltaic application of NIR-emitting perylene-monoimide dyes with large Stokes-shift.

Sharma Vikas V Kovida Sahoo Dhananjaya D Varghese Nonu N Mohanta Kallol K Koner Apurba Lal AL

RSC advances 20190925 52

An efficient Sonogashira coupling protocol is developed for tetra-alkynylation at the bay and peri-positions of the perylene-monoimide (PMI) dye in its PMI(Br)4 form. The absorption band for these PMI dyes covered from the visible to Near-infrared (NIR) region and PMI(NMe2)4 is found to exhibit a record-breaking Stokes-shifted NIR emission with good photovoltaic properties. ...[more]

PMID: 35530228

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