Boron Nitride Nanosheets Improve Sensitivity and Reusability of Surface-Enhanced Raman Spectroscopy.
Surface enhanced Raman spectroscopy (SERS) is a useful multidisciplinary analytic technique. However, it is still a challenge to produce SERS substrates that are highly sensitive, reproducible, stable, reusable, and scalable. Herein, we demonstrate that atomically thin boron nitride (BN) nanosheets have many unique and desirable properties to help solve this challenge. The synergic effect of the atomic thickness, high flexibility, stronger surface adsorption capability, electrical insulation, impermeability, high thermal and chemical stability of BN nanosheets can increase the Raman sensitivity by up to two orders, and in the meantime attain long-term stability and extraordinary reusability not achievable by other materials. These advances will greatly facilitate the wider use of SERS in many fields.
Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, 3216, VIC, Australia.
Qiran
Q
Cai
Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, 3216, VIC, Australia.
Srikanth
S
Mateti
Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, 3216, VIC, Australia.
Wenrong
W
Yang
Department of Physics, La Trobe University, Bundoora, 3086, VIC, Australia.
Rob
R
Jones
National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan.
Kenji
K
Watanabe
National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan.
Takashi
T
Taniguchi
Nanomaterials and Chemistry Key Laboratory, Wenzhou University, 276 Xueyuan Middle Road, Wenzhou, Zhejiang, 325027, China.
Shaoming
S
Huang
Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, 3216, VIC, Australia. ian.chen@deakin.edu.au.
Ying
Y
Chen
Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, 3216, VIC, Australia. luhua.li@deakin.edu.au.
Lu Hua
LH
Li
boron nitride; nanosheets; silver; surface adsorption; surface enhanced Raman spectroscopy (SERS)