논문 해외 국제전문학술지(SCI급) Easy-to-make-and-use gold nanotrench arrays for surface-enhanced Raman scattering
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2021-10
- 저자명 정중희, 위정섭, 오태식, 나희경
- 학술지명 Optical Materials Express
- 발행처명 Optica Publishing Group
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
홈페이지논문 초록 (Abstract)
To achieve a surface-enhanced Raman spectroscopy (SERS) sensor that is easy to make and use, we propose periodic gold nanotrench arrays, which can be fabricated without surface contamination and intricate sensor alignment. Deep and narrow plasmonic nanotrenches for amplifying local electromagnetic fields were reliably generated on a wafer-scale substrate by nanoimprint lithography and two successive oblique-angle depositions. Electromagnetic simulations and Raman measurements show that the proposed plasmonic nanostructures function as SERS sensors, enabling nanomolar sensitivity. Furthermore, we successfully confirmed the microRNA detection capability of the proposed nanostructures to demonstrate their promising potential and feasibility for use in biomedical diagnostic sensors.