Add to BibSonomy
Abstract
This study successfully implements spectrally distinguishable CdSe-ZnS core–shell colloidal quantum dot (CQD) microlasers by a simple, efficient spray printing technique and demonstrates its potential in biosensing. We have systematically characterized the optical properties of printed microring lasers with diameters less than 60 µm. The smallest structure that can be excited has a diameter as small as 30 µm, which is much smaller than the counterparts prepared by piezoelectric ink-jet printing. The detection sensitivity of 4.54 nm/min/refractive index unit is verified in glucose sensing using a printed CQD microlaser. Biosensing of diverse glucose and bovine serum albumin solutions using printed microlasers with the assistance of defects demonstrates a new, to the best of our knowledge, prototype for the development of high-performance, low-cost on-chip microcavity sensors.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Lei Wan, Cong Chen, Junfeng Zhu, K. T. Abdul Nasir, Qingyu Cui, Zhenshi Chen, Hiroaki Yoshioka, Weiping Liu, Yuji Oki, and Zhaohui Li
Opt. Express 27(14) 19615-19623 (2019)
Abdul Nasir, Yuya Mikami, Rui Yatabe, Hiroaki Yoshioka, Nilesh Vasa, and Yuji Oki
Opt. Mater. Express 11(3) 592-602 (2021)
Cong Chen, Jin Yuan, Lei Wan, Hengky Chandrahalim, Zhenshi Chen, Naoya Nishimura, Harunobu Takeda, Hiroaki Yoshioka, Weiping Liu, Yuji Oki, Xudong Fan, and Zhaohui Li
Opt. Lett. 44(3) 495-498 (2019)