Changes in optical characteristics induced by polymer blending in printed colloidal quantum dots microlasers

Lei Wan, Cong Chen, Junfeng Zhu, K. T.Abdul Nasir, Qingyu Cui, Zhenshi Chen, Hiroaki Yoshioka, Weiping Liu, Yuji Oki, Zhaohui Li

研究成果: ジャーナルへの寄稿記事

抜粋

On-chip microlasers are desirable to meet the different control requirements and unique demands in different application scenarios. In this work, we obtained the on-chip microlaser by printing pixelated CdSe/ZnS colloidal quantum dots (CQDs), incorporating the quantum dot self-assembly mechanism and the external cavity-free configuration. The spectral purity of the microlaser can be significantly improved by slightly blending polymer into the CQD matrix. The quasitoroid profile was gradually changed to microdisks as the polystyrene (PS) concentration increased from 0 wt.% to 10 wt.%. Specially, when the PS solution varied from 0 wt.% to 1 wt.%, the lasing threshold of 1.4 μJ/mm2 was increased up to 14 μJ/mm2, meanwhile the emission wavelength range showed a 25 nm blue-shift approximately. The easy printing technologies and the low-cost polymer blending method employed in the obtained microlasers will further facilitate the development of printing photonics and electronics, especially in the high-performance microlaser displays and high-precision sensors.

元の言語英語
ページ(範囲)19615-19623
ページ数9
ジャーナルOptics Letters
27
発行部数14
DOI
出版物ステータス出版済み - 1 1 2019

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

これを引用

Wan, L., Chen, C., Zhu, J., Nasir, K. T. A., Cui, Q., Chen, Z., ... Li, Z. (2019). Changes in optical characteristics induced by polymer blending in printed colloidal quantum dots microlasers. Optics Letters, 27(14), 19615-19623. https://doi.org/10.1364/OE.27.019615