title: Wang et al. Reply.
authors.affiliation: Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha, Hunan 410082, People's Republic of China.
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Wang
authors.affiliation: Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha, Hunan 410082, People's Republic of China.
authors.forename: Xiujuan
authors.initials: X
authors.lastname: Zhuang
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA.
authors.forename: Sen
authors.initials: S
authors.lastname: Yang
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA.
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha, Hunan 410082, People's Republic of China.
authors.forename: Qinglin
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha, Hunan 410082, People's Republic of China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha, Hunan 410082, People's Republic of China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhou
authors.affiliation: Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha, Hunan 410082, People's Republic of China.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Guo
authors.affiliation: Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha, Hunan 410082, People's Republic of China.
authors.forename: Junwu
authors.initials: J
authors.lastname: Liang
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA.
authors.forename: Yu
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronic Science, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha, Hunan 410082, People's Republic of China.
authors.forename: Anlian
authors.initials: A
authors.lastname: Pan
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA.
authors.forename: Xiangfeng
authors.initials: X
authors.lastname: Duan