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Title: Surface-Synthesized Graphene Nanoribbons for Room Temperature Switching Devices: Substrate Transfer and ex Situ Characterization

Journal Article · · ACS Applied Nano Materials
ORCiD logo [1];  [1];  [1];  [2];  [2]; ORCiD logo [3];  [4];  [1];  [5]; ORCiD logo [5]; ORCiD logo [5];  [6]; ORCiD logo [6]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [1]
  1. Swiss Federal Labs for Materials Science and Technology, Dubendorf (Switzerland)
  2. Univ. de Montpellier, Montpellier (France)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Rensselaer Polytechnic Inst., Troy, NY (United States)
  4. Rensselaer Polytechnic Inst., Troy, NY (United States)
  5. Max Planck Institute for Polymer Research, Mainz (Germany)
  6. Technische Univ. Dresden, Dresdan (Germany)
  7. Swiss Federal Labs for Materials Science and Technology, Dubendorf (Switzerland); Univ. of Bern, Bern (Switzerland)

Recent progress in the on-surface synthesis of graphene nanoribbons (GNRs) has given access to atomically precise narrow GNRs with tunable electronic band gaps which makes them excellent candidates for room temperature switching devices such as field-effect transistors (FET). However, in spite of their exceptional properties, significant challenges remain for GNR processing and characterization. This contribution addresses some of the most important challenges, including GNR fabrication scalability, substrate transfer, long-term stability under ambient conditions, and ex situ characterization. We focus on 7- and 9-atom-wide armchair graphene nanoribbons (i.e., 7-AGNR and 9-AGNR) grown on 200 nm Au(111)/mica substrates using a high throughput system. Transfer of both 7- and 9-AGNRs from their Au growth substrate onto various target substrates for additional characterization is accomplished utilizing a polymer-free method that avoids residual contamination. This results in a homogeneous GNR film morphology with very few tears and wrinkles, as examined by atomic force microscopy. Raman spectroscopy indicates no significant degradation of GNR quality upon substrate transfer and reveals that GNRs have remarkable stability under ambient conditions over a 24 month period. The transferred GNRs are analyzed using multiwavelength Raman spectroscopy, which provides detailed insight into the wavelength dependence of the width-specific vibrational modes. Finally, we characterize the optical properties of 7- and 9-AGNRs via ultraviolet–visible (UV–vis) spectroscopy.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1515681
Journal Information:
ACS Applied Nano Materials, Vol. 2, Issue 4; ISSN 2574-0970
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 58 works
Citation information provided by
Web of Science

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Cited By (12)

2N+4-rule and an atlas of bulk optical resonances of zigzag graphene nanoribbons journal January 2020
Engineered electronic states in atomically precise artificial lattices and graphene nanoribbons journal January 2019
Production and processing of graphene and related materials journal January 2020
Optimized Substrates and Measurement Approaches for Raman Spectroscopy of Graphene Nanoribbons journal November 2019
Absorption Cross-Section and Near-Field Enhancement in Finite-Length Carbon Nanotubes in the Terahertz-to-Optical Range journal September 2009
Optimized Substrates and Measurement Approaches for Raman Spectroscopy of Graphene Nanoribbons text January 2019
Production and processing of graphene and related materials text January 2020
Production and processing of graphene and related materials text January 2020
Engineered electronic states in atomically precise artificial lattices and graphene nanoribbons text January 2019
Optimized substrates and measurement approaches for Raman spectroscopy of graphene nanoribbons text January 2019
In-plane breathing and shear modes in low-dimensional nanostructures journal February 2020
Optimized Graphene Electrodes for contacting Graphene Nanoribbons preprint January 2021

Figures / Tables (6)