The Role of Electron-Donating Subunits in Cross-Linked BODIPY Polymer Films
Yükleniyor...
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
John Wiley and Sons Inc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Attribution 3.0 United States
Attribution 3.0 United States
Özet
A new method for synthesizing cross-linked 4,4-difluoro-4-bora-3a,4a-diaza-s-indacenes (BODIPYs) using a radical-based thiol-ene click reaction is developed. This method is simple, efficient, and cost-effective, and it produces polymers with unique optical, electrochemical, and surface morphology properties. Significant blue shifts in absorption and photoinduced electron transfer in emissions are observed in the cross-linked BODIPY thin films. Cross-linking also leads to the restriction of conjugation, which results in the breakage of the terminal vinyl group, an increase in the oxidation potential, and a slight upshift in the HOMO position. As a result, the electrochemical band gap is widened from 1.88 to 1.94 eV for polymer bearing N,N-dimethylamino-BODIPY and from 1.97 to 2.02 eV for polymer bearing N,N-diphenylamino-BODIPY moieties. Monomer thin films form planar surfaces due to crystallinity, while amorphous cross-linked BODIPY polymers form more rough surfaces. Additionally, photopatterning on the film surface is successfully performed using different patterned masks. This new method for synthesizing cross-linked BODIPYs has the potential to be used in a variety of applications, including organic electronics, bioimaging, and photocatalysis.
Açıklama
Anahtar Kelimeler
4,4-difluoro-4-bora-3a,4a-diaza-s-indacene, Electron donating groups, Optical properties, Photopatterning, Surface morphology, Thiol-ene click
Kaynak
Macromolecular Rapid Communications
WoS Q Değeri
Q1
Scopus Q Değeri
Cilt
Sayı
Künye
Özdemir, M., Köksoy, B., Yalçın, B., & Koyuncu, S. (2023). The Role of Electron‐Donating Subunits in Cross‐Linked BODIPY Polymer Films. Macromolecular Rapid Communications. https://doi.org/10.1002/marc.202300552
