Lee, Y.-C.Y.-C.LeeWang, E.-Y.E.-Y.WangLiu, Y.-L.Y.-L.LiuChen, H.-L.H.-L.ChenHSUEN-LI CHEN2020-05-122020-05-122015https://scholars.lib.ntu.edu.tw/handle/123456789/491290Using metal-less structures to enhance the Raman signals of graphene by 100-fold while maintaining the band-to-band ratio and peak positions preciselyjournal article10.1021/cm504003t2-s2.0-84922818521https://www.scopus.com/inward/record.uri?eid=2-s2.0-84922818521&doi=10.1021%2fcm504003t&partnerID=40&md5=416f0b646359c01dda5b4c51a315b3b4