Amplified spontaneous emission from oligo(p-phenylenevinylene) derivatives. Issue 12 (13th May 2021)

• Record Type: Journal Article
• Authors: Mamada, Masashi; Nakanotani, Hajime; Adachi, Chihaya
• Is Part Of: Materials advances. Volume 2:Issue 12(2021)
• Page Start: 3906
• Page End: 3914
• Publication Date: 2021-05-13
• Subjects: 620.11
• DOI: 10.1039/d0ma00756k
• Languages: English
• ISSNs: 2633-5409

Abstract

Abstract : A series of oligo( p -phenylenevinylene) derivatives were fully characterized. Compounds with herringbone packing exhibited amplified spontaneous emission (ASE) thresholds as low as 7.2 μJ cm −2, while those with π-stacked structures did not show ASE. Abstract : For an improved understanding of molecular design for efficient laser materials, we report structure–property relationships in a series of oligo( p -phenylenevinylene) derivatives. The π-extended phenylenevinylene systems have been studied less frequently than the well-known 1, 4-distyrylbenzene framework, despite easy syntheses and great prospects for optoelectronic devices. Here, light amplification behaviours, with amplified spontaneous emission thresholds as low as 7.2 μJ cm −2, were characterized for oligo( p -phenylenevinylene) crystals. Substitution with cyano groups significantly changes the crystal packing and emission properties, while also improves the lasing behaviour.