TY - GEN
T1 - Investigation of surface plasmon resonance in bimetallic Au-Ag alloys nanorod-shaped based on linear-weight calculation
AU - Muhammad Sujak, M. K.
AU - Putra, Miftahussurur Hamidi
AU - Djuhana, Dede
N1 - Publisher Copyright:
© 2020 Author(s).
PY - 2020/9/3
Y1 - 2020/9/3
N2 - Noble metals (Au and Ag) are the primary raw materials which have vast potential application ranging from across biosensor, biomedicine, science, and engineering fundamental. However, alloying them will enhance the efficiency and applicability of noble metals. Employing the linear-weight (LW) technique to construct a dielectric function of a binary solution is still disputed. However, this method is still widely used to examine Localized Surface Plasmon Resonance (LSPR) of Au-Ag binary solution. In this work, the calculation of electromagnetic response such as Localized Surface Plasmon Resonance (LSPR) of bimetallic Au-Ag nanorod was performed by means of MNPBEM package. We utilized nanorod-shaped with two different excitation modes, namely, Transverse Mode (TM) and Longitudinal Mode (LM), and various compositions to investigate their LSPR shifting anomalies. Moreover, we employed the LW technique to construct their dielectric function and analyze the LSPR anomalies. Interestingly, we found that using LW approximation, the resonance peak of TM is separate into two peaks. These peaks originated from the free electron of Au and Ag respectively, however, some of LSPRs peak did not occur amongst peak of pure Au and Ag. Practically, using LW method the resonance peak should be located amongst their individual elements. This work has provided the limitation of using silver fraction and the related aspect ratios to predict the LSPR spectra of Au and Ag on nanorod-shaped.
AB - Noble metals (Au and Ag) are the primary raw materials which have vast potential application ranging from across biosensor, biomedicine, science, and engineering fundamental. However, alloying them will enhance the efficiency and applicability of noble metals. Employing the linear-weight (LW) technique to construct a dielectric function of a binary solution is still disputed. However, this method is still widely used to examine Localized Surface Plasmon Resonance (LSPR) of Au-Ag binary solution. In this work, the calculation of electromagnetic response such as Localized Surface Plasmon Resonance (LSPR) of bimetallic Au-Ag nanorod was performed by means of MNPBEM package. We utilized nanorod-shaped with two different excitation modes, namely, Transverse Mode (TM) and Longitudinal Mode (LM), and various compositions to investigate their LSPR shifting anomalies. Moreover, we employed the LW technique to construct their dielectric function and analyze the LSPR anomalies. Interestingly, we found that using LW approximation, the resonance peak of TM is separate into two peaks. These peaks originated from the free electron of Au and Ag respectively, however, some of LSPRs peak did not occur amongst peak of pure Au and Ag. Practically, using LW method the resonance peak should be located amongst their individual elements. This work has provided the limitation of using silver fraction and the related aspect ratios to predict the LSPR spectra of Au and Ag on nanorod-shaped.
UR - http://www.scopus.com/inward/record.url?scp=85091909285&partnerID=8YFLogxK
U2 - 10.1063/5.0014526
DO - 10.1063/5.0014526
M3 - Conference contribution
AN - SCOPUS:85091909285
T3 - AIP Conference Proceedings
BT - Proceedings of the 5th International Symposium on Frontier of Applied Physics, ISFAP 2019
A2 - Shiddiq, Muhandis
A2 - Hardiansyah, Andri
A2 - Putri, Witha Berlian Kesuma
A2 - Herbani, Yuliati
A2 - Kurniawan, Edi
A2 - Khaerudini, Deni
A2 - Nugraha, Ahmad
A2 - Syuhada, Syuhada
A2 - Fauzi, Hamzah
A2 - Rifai, Abdulloh
A2 - Suprayoga, Edi
A2 - Tetuko, Anggito
A2 - Sudiro, Toto
PB - American Institute of Physics Inc.
T2 - 5th International Symposium on Frontier of Applied Physics, ISFAP 2019
Y2 - 23 October 2019 through 24 October 2019
ER -