Circularly Polarized Light Source from Self‐Assembled Hybrid Nanoarchitecture. Issue 16 (28th May 2022)

• Record Type: Journal Article
• Authors: Wang, Xiongbin; Wang, Qiushi; Zhang, Xuanyu; Miao, Jun; Cheng, Jiaji; He, Tingchao; Li, Yiwen; Tang, Zikang; Chen, Rui
• Is Part Of: Advanced optical materials. Volume 10:Issue 16(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-05-28
• Subjects: cellulose nanocrystals -- circularly polarized luminescence -- photopolymerization -- quantum dots -- self‐assembly; Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.202200761
• Languages: English
• ISSNs: 2195-1071

Abstract

Abstract: Circularly polarized luminescent inorganics arouses attentions due to scalable preparation and versatile chiral optoelectronic applications. Here, strong circularly polarized luminescence (CPL) activity has been developed from self‐assembled cellulose nanocrystals decorated with blue emitting silicon quantum dots (QDs). The electrostatic attraction promotes the successful incorporation of QDs into chiral template matrix to form homogeneous hybrid nanoarchitecture films. It is found that their circular dichroism behaviors are closely related to the photonic band gap (PBG) while the CPL behaviors are determined by the QDs and PBG simultaneously. Furthermore, the as‐prepared chiral composite thin films have been employed as an efficient circularly polarized light source for preparing enantioselective polymer, which can induce chirality and photopolymerization simultaneously. Such strong CPL activity in nanoarchitecture films is highly promising for future inorganic optoelectronics. Abstract : Blue emitting silicon quantum dots are mixed with self‐assembled cellulose nanocrystals to form homogeneous chiral nanoarchitecture films with strong circularly polarized luminescence (CPL) activity. The obtained film is employed as an efficient CPL source for preparing enantioselective polymer.