journal article·2025-03Open access

Rational Design and Engineering of Conducting Polymers for Chemical Enhancement in Raman Scattering

Huanhuan Zhang, Jun‐Yu Dong, Xuke Tang, Naoki Kishimoto, Yunjie Deng, Hongqian Zhang, Xingxing Yu, Yuta Nakagawa, Shi‐Tong Zhang, Yuji Kagotani, Motoyasu Adachi, Yuqi Zhou, Yasutaka Kitahama, Machiko Marumi, Laura Kacenauskaite, Pablo Martinez Pancorbo, Yasuteru Shigeta, Atsushi Iwasaki, Yuguang Ma, Ting‐Hui Xiao, Keisuke Goda

Advanced Optical Materials· Volume 13· Issue 8

Abstract

Abstract Raman scattering is characterized by the inherently weak inelastic scattering of photons, influenced by molecular vibrations or rotations. Recent advances have shifted from traditional electromagnetic enhancement methods to chemically enhanced Raman scattering, offering significant advantages. However, these advancements have typically depended on indirect and empirical models. This article introduces a systematic method for the rational design and engineering of chemical enhancement to Raman scattering. This method involves identifying promising Raman enhancers and optimizing their morphology and composition by elucidating their photochemical properties and mapping their charge‐transfer pathways with target molecules using transient absorption spectroscopy (TAS), cyclic voltammetry (CV), and density functional theory (DFT) calculations. Employing this method, this work has developed a series of rationally designed Raman enhancers made from conducting polymers (CPs), such as poly(3,4‐ethylenedioxythiophene) (PEDOT), with optimized morphological traits and compositions. These enhancers significantly improve surface‐enhanced Raman spectroscopy (SERS), achieving a reproducible enhancement factor of up to 10 6 , and boost Raman lasing, with a remarkable 40‐fold increase in energy conversion efficiency.
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Research context

OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Conducting polymers and applications · Luminescence and Fluorescent Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry The University of Tokyo Tokyo 113‐0033 Japan

Department of Materials and Energy Guangdong University of Technology Guangzhou 510006 P. R. China

Department of Chemistry Tohoku University Sendai 980–8578 Japan

Department of Chemistry Jilin University Changchun 130012 P. R. China

Institute for Quantum Life Science National Institutes for Quantum Science and Technology Chiba 263–8555 Japan

LucasLand Tokyo 113‐0023 Japan

Center for Computational Sciences University of Tsukuba Tsukuba 305–8577 Japan

Department of Materials Science and Engineering South China University of Technology Guangzhou 510641 P. R. China

Laboratory of Zhongyuan Light School of Physics Zhengzhou University Zhengzhou 450001 China

Key Laboratory of Materials Physics Ministry of Education School of Physics Zhengzhou University Zhengzhou 450001 China

Institute of Quantum Materials and Physics Henan Academy of Sciences Zhengzhou 450046 China

Institute of Technological Sciences Wuhan University Hubei 430072 P. R. China

Department of Bioengineering University of California Los Angeles CA 90095 USA

Funding

National Natural Science Foundation of China · Murata Science Foundation

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