Article
Nanoscience & Nanotechnology
Lin Zhu, Zhen Meng, Saizhen Hu, Tiancong Zhao, Bing Zhao
Summary: The study focuses on the plasmonic coupling between noble-metal and semiconductor nanostructures, and reveals the enhanced charge transfer and surface-enhanced Raman scattering (SERS) signals in a designed W18O49/Ag heterostructure. A new coupled-plasmon-induced charge transfer mechanism is proposed, providing insight for further studies on plasmonic effects and interfacial charge transfer in metal/semiconductor heterostructures.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Lin Zhu, Zhen Meng, Saizhen Hu, Tiancong Zhao, Bing Zhao
Summary: In this study, we for the first time observed and considered the plasmonic coupling between noble-metal and semiconductor nanostructures in metal/semiconductor heterostructures, using a W18O49/Ag heterostructure composed of Ag nanoparticles and W18O49 nanowires. The heterogeneous structure exhibited a broad and strong surface plasmon resonance (SPR) absorption in the visible wavelength range. Surface-enhanced Raman scattering (SERS) was used to investigate the interactions between metal SPR, semiconductor SPR, and the heterostructure's charge transfer process, revealing that the coupled SPR enhanced the heterostructure's internal charge transfer and SERS signals. A new coupled-plasmon-induced charge transfer mechanism was proposed to explain the improved charge transfer efficiency. This work provides insights for further studies on plasmonic effects and interfacial charge transfer in metal/semiconductor heterostructures.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Nanoscience & Nanotechnology
Cheng Zong, Ji-Xin Cheng
Summary: Plasmon-enhanced stimulated Raman scattering (PESRS) microscopy has been developed to achieve single-molecule detection limit. The dispersive-like vibrational line shapes observed in PESRS can be explained by the interference between the local enhanced electromagnetic field induced by the plasmonic nanostructure and the molecular dipole-induced field. The PESRL and PESRG signals exhibit similar signal magnitudes but show reversed dispersive profiles under the same laser wavelength.
Article
Nanoscience & Nanotechnology
Jun Dong, Wanting Zhou, Chengyuan Yang, Haoran Wu, Qingyan Han, Chengyun Zhang, Wei Gao, Xuewen Yan, Mengtao Sun
Summary: The absorption and scattering frequencies of surface plasmon resonance can be adjusted by changing the morphology, size, structure, arrangement, and gap between noble metal nanoparticles. This enhances the local electromagnetic field on the substrate surface, promoting surface-enhanced Raman spectroscopy.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Thi Huyen Trang Nguyen, Thi Mai Anh Nguyen, Cong Doanh Sai, Thi Hai Yen Le, Thi Ngoc Anh Tran, Thanh Cong Bach, Van Vu Le, Nguyen Hai Pham, An Bang Ngac, Viet Tuyen Nguyen, Thi Ha Tran
Summary: The research combined sputtering and post annealing methods to prepare gold nanoparticles with uniform distribution on cover glass substrates, and studied the effect of gold thickness on the formation of nanoparticles. The study also analyzed the impact of size, inter-distance, and morphology of gold NPs on plasmon properties using SEM and absorption spectroscopy. Different morphologies' enhancement capabilities were verified using FDTD technique, demonstrating the efficient performance of the prepared gold nanoparticles arrays as SERS substrates.
Article
Multidisciplinary Sciences
Shuangmei Zhu, Chunzhen Fan, Erjun Liang, Pei Ding, Xiguang Dong, Haoshan Hao, Hongwei Hou, Yuanda Wu
Summary: A new tactic using Ag nanorice trimer as surface-enhanced hyper Raman scattering substrate is proposed for maximum signal enhancement. Numerical simulation and theoretical analysis show that the Ag nanorice trimer can excite Fano resonance at optical frequencies based on interaction between bright and dark modes, with the potential for achieving high enhancement factors in hyper Raman scattering.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Analytical
I-Shin Chen, Sebastian J. Davis, Man-Ling Chang, Chao-Hsuan Hung, Aleksandra Radenovic, Po-Ling Chang
Summary: This study proposes a method for ABO and Rh blood group typing from individual erythrocytes using blood-group-specific antibodies immobilized to gold nanoparticles. The method allows for quick identification of blood groups without the need for washing or waiting for hemagglutination, demonstrating feasibility and advantages for emergency transfusions where patient blood groups are unknown. Matching RhD+ in emergency transfusions may also help reduce the shortage of RhD- red blood cells in populations with high RhD- frequency.
ANALYTICAL CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Hajir Hilal, Qiang Zhao, Jeongwon Kim, Sungwoo Lee, MohammadNavid Haddadnezhad, Sungjae Yoo, Soohyun Lee, Woongkyu Park, Woocheol Park, Jaewon Lee, Joong Wook Lee, Insub Jung, Sungho Park
Summary: This study demonstrates a new three-dimensional nanostructure with polarization-independent SERS activity, prepared through a precise synthesis method. This unique structure shows efficient interaction with light and analytes, providing new possibilities for optical-based sensing.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Xueqing Yang, Yi Liu, Shiu Hei Lam, Jing Wang, Shizheng Wen, ChiYung Yam, Lei Shao, Jianfang Wang
Summary: In this study, a facile wet-chemistry approach was used for the selective deposition of zeolitic imidazolate framework-8 (ZIF-8) on anisotropic Au nanobipyramids (NBPs) and nanorods. ZIF-8 was selectively deposited at the ends and waist and around the entire surface of the elongated Au nanocrystals. The NBP-based nanostructures with end-deposited ZIF-8 exhibited the best surface-enhanced Raman scattering (SERS) performance, showing potential for molecular sensing, optical switching, and plasmonic catalysis.
Article
Biophysics
Xiaohui Lu, Chanyu Yao, Linlin Sun, Zheng Li
Summary: MicroRNAs are reliable biomarkers for noninvasive detection of diseases, including cancers. Plasmon-enhanced biosensors are promising tools for miRNA analysis, using enhanced optical output to detect and analyze miRNA.
BIOSENSORS & BIOELECTRONICS
(2022)
Review
Chemistry, Multidisciplinary
Dong Liu, Can Xue
Summary: Plasmonic photocatalysis is a promising approach for solar energy transformation, which can enhance photocatalytic efficiency by optimizing the composition, spacing, and orientation of metal nanostructures. Integrating metal nanostructures with semiconductor photocatalysts can accelerate exciton generation and separation, thus improving photocatalytic efficiency.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ruoqi Ai, Christina Boukouvala, George Lewis, Hao Wang, Han Zhang, Yunhe Lai, He Huang, Emilie Ringe, Lei Shao, Jianfang Wang
Summary: A simple method for reshaping immobilized Au nanoplates through plasma treatment is demonstrated, resulting in the formation of nearly periodic right pyramid arrays on the surface. The gaseous environment in the plasma-treatment system, specifically nitrogen-containing environments, plays a significant role in the reshaping process. The reshaped Au nanoplates exhibit enhanced optical properties, including higher refractive index sensitivities and increased surface-enhanced Raman scattering intensities.
Article
Chemistry, Physical
Jihua Xu, Yuan Si, Zhen Li, Shouzhen Jiang, Xianwu Xiu, Fengcai Lei, Xuejian Du, Baoyuan Man, Jing Yu, Chao Zhang
Summary: The Ag/CuO nanowires/pyramidal PDMS multiscale structure was successfully fabricated and demonstrated excellent SERS activity and molecular adsorption capability. This structure was able to sensitively detect R6G and other molecules in complex environments, showing great potential for practical applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Runcheng Liu, Zhipeng Zha, Muhammad Shafi, Can Li, Wen Yang, Shicai Xu, Mei Liu, Shouzhen Jiang
Summary: The proposed HMM/Ag NPs platform allows for the excitation and utilization of BPP for SERS applications, with the Ag NPs providing strong plasmonic properties and acting as a light-matter coupler. Additionally, the platform successfully decouples BPP into localized surface plasmon using the nano antenna structure of Ag NPs, showing potential for surface-enhanced spectroscopy applications.
Article
Chemistry, Multidisciplinary
Heesun Jung, Hoon Cha, Daedu Lee, Sangwoon Yoon
Article
Chemistry, Physical
Hoon Cha, Daedu Lee, Jun Hee Yoon, Sangwoon Yoon
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2016)
Article
Chemistry, Physical
Daedu Lee, Sangwoon Yoon
JOURNAL OF PHYSICAL CHEMISTRY C
(2016)
Article
Chemistry, Multidisciplinary
Daedu Lee, Sangwoon Yoon
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2016)
Article
Chemistry, Multidisciplinary
Jun Hee Yoon, Jonghui Lim, Sangwoon Yoon
Article
Chemistry, Multidisciplinary
Hoon Cha, Jun Hee Yoon, Sangwoon Yoon
Article
Chemistry, Multidisciplinary
Jun Hee Yoon, Sangwoon Yoon
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2013)
Article
Chemistry, Multidisciplinary
Byoung-Kwan Lee, Jun Hee Yoon, Sangwoon Yoon, Byoung-Ki Cho
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2014)
Article
Chemistry, Multidisciplinary
Jonghui Lim, Na-Eun Lee, Eunji Lee, Sangwoon Yoon
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2014)
Article
Chemistry, Physical
Abdulla He Al Mamun, Sangwoon Yoon, Jae Ryang Hahn
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2014)
Article
Chemistry, Physical
Jun Hee Yoon, Yong Zhou, Martin G. Blaber, George C. Schatz, Sangwoon Yoon
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2013)
Article
Chemistry, Multidisciplinary
Jun Hee Yoon, Sangwoon Yoon
Article
Materials Science, Multidisciplinary
Seung-Ho Jang, Jun Hee Yoon, Young-Duk Huh, Sangwoon Yoon
JOURNAL OF MATERIALS CHEMISTRY C
(2014)
Article
Chemistry, Multidisciplinary
Hoon Cha, Sangwoon Yoon
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2015)