Details

Autor(en) / Beteiligte

• Domena, Justin B
• Celebic, Ermin
• Ferreira, Braulio C L B
• Zhou, Yiqun
• Zhang, Wei
• Chen, Jiuyan
• Bartoli, M
• Tagliaferro, A
• Johnson, Qiaxian
• Chauhan, Bhanu P S
• Paulino, Victor
• Olivier, Jean-Hubert
• Leblanc, Roger M

Titel

Investigation into Red Emission and Its Applications: Solvatochromic N-Doped Red Emissive Carbon Dots with Solvent Polarity Sensing and Solid-State Fluorescent Nanocomposite Thin Films

Ist Teil von

• Molecules (Basel, Switzerland), 2023-02, Vol.28 (4), p.1755

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2023

Link zum Volltext

Quelle

EZB*

Beschreibungen/Notizen

• In this work, a NIR emitting dye, -toluenesulfonate (IR-813) was explored as a model precursor to develop red emissive carbon dots (813-CD) with solvatochromic behavior with a red-shift observed with increasing solvent polarity. The 813-CDs produced had emission peaks at 610 and 698 nm, respectively, in water with blue shifts of emission as solvent polarity decreased. Subsequently, 813-CD was synthesized with increasing nitrogen content with polyethyleneimine (PEI) to elucidate the change in band gap energy. With increased nitrogen content, the CDs produced emissions as far as 776 nm. Additionally, a CD nanocomposite polyvinylpyrrolidone (PVP) film was synthesized to assess the phenomenon of solid-state fluorescence. Furthermore, the CDs were found to have electrochemical properties to be used as an additive doping agent for PVP film coatings.