On‐Demand, Direct Printing of Nanodiamonds at the Quantum Level. Issue 5 (23rd December 2021)

• Record Type: Journal Article
• Authors: Xu, Zhaoyi; Wang, Lingzhi; Huan, Xiao; Lee, Heekwon; Yang, Jihyuk; Zhou, Zhiwen; Chen, Mojun; Hu, Shiqi; Liu, Yu; Feng, Shien‐Ping; Zhang, Tongtong; Xu, Feng; Chu, Zhiqin; Kim, Ji Tae
• Is Part Of: Advanced science. Volume 9:Issue 5(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-12-23
• Subjects: electrohydrodynamic printing -- lithography‐free manufacturing -- nanodiamonds -- nitrogen vacancy centers -- quantum nanomaterials; Science -- Periodicals; 505
• DOI: 10.1002/advs.202103598
• Languages: English
• ISSNs: 2198-3844

Abstract

Abstract: The quantum defects in nanodiamonds, such as nitrogen‐vacancy (NV) centers, are emerging as a promising candidate for nanoscale sensing and imaging, and the controlled placement with respect to target locations is vital to their practical applications. Unfortunately, this prerequisite continues to suffer from coarse positioning accuracy, low throughput, and process complexity. Here, it is reported on direct, on‐demand electrohydrodynamic printing of nanodiamonds containing NV centers with high precision control over quantity and position. After thorough characterizations of the printing conditions, it is shown that the number of printed nanodiamonds can be controlled at will, attaining the single‐particle level precision. This printing approach, therefore, enables positioning NV center arrays with a controlled number directly on the universal substrate without any lithographic process. The approach is expected to pave the way toward new horizons not only for experimental quantum physics but also for the practical implementation of such quantum systems. Abstract : Direct printing of nanodiamonds containing nitrogen‐vacancy centers at the single‐particle level is realized with programmed electrohydrodynamic dispensing of nanodiamonds‐laden nanodroplets.