• 文献标题:   Solution-Synthesized Extended Graphene Nanoribbons Deposited by High-Vacuum Electrospray Deposition
  • 文献类型:   Article
  • 作  者:   SCHERB S, HINAUT A, YAO XL, GOTZ A, ALHILFI SH, WANG XY, HU YB, QIU ZJ, SONG YM, MULLEN K, GLATZEL T, NARITA A, MEYER E
  • 作者关键词:   graphene nanoribbon, electrospray deposition, ncafm, nonplanarity, solution synthesi
  • 出版物名称:   ACS NANO
  • ISSN:   1936-0851 EI 1936-086X
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1021/acsnano.2c09748 EA DEC 2022
  • 出版年:   2023

▎ 摘  要

Solution-synthesized graphene nanoribbons (GNRs) facilitate various interesting structures and functionalities, like nonplanarity and thermolabile functional groups, that are not or not easily accessible by on-surface synthesis. Here, we show the successful high-vacuum electrospray deposition (HVESD) of well-elongated solution-synthesized GNRs on surfaces maintained in ultrahigh vacuum. We compare three distinct GNRs, a twisted nonplanar fjord-edged GNR, a methoxyfunctionalized "cove"-type (or also called gulf) GNR, and a longer "cove"-type GNR both equipped with alkyl chains on Au(111). Nc-AFM measurements at room temperature with submolecular imaging combined with Raman spectroscopy allow us to characterize individual GNRs and confirm their chemical integrity. The fjord-GNR and methoxy-GNR are additionally deposited on nonmetallic HOPG and SiO2, and fjord-GNR is deposited on a KBr(001) surface, facilitating the study of GNRs on substrates, as of now not accessible by on-surface synthesis.