Organic thermoelectric materials capable of converting heat into electricity become important for sustainable energy conversion. Single-molecule thermoelectric devices present a promising opportunity for high-efficiency thermopower conversion by precisely controlling molecular energy levels, which induces energy-dependent transport asymmetry and consequently enhances the Seebeck coefficient. However, scalable thermopower output remains constrained by the challenges of assembling heteromolecular thermoelectric units with opposite polarities, whereas dynamic in situ control over the polarity of the Seebeck coefficient offers a feasible strategy for overcoming this limitation. Here, we report a photoresponsive single-molecule bithermoelectric device based on dithienylethene (DTE) derivatives using the scanning tunneling microscope break-junction (STM-BJ) technique with a thermoelectric module. The Seebeck coefficient could be reversibly switched between positive (P-type) and negative (N-type) values upon respective UV and visible light irradiation, as confirmed by thermoelectric measurements and density functional theory (DFT) calculations. By assembling an array of DTE monolayer with an optical mask to partially trigger the photoisomerization, we experimentally realized alternating P-type and N-type DTE molecular junctions connected through interleaved top and bottom electrodes, yielding a series-integrated molecular thermoelectric device with an amplified thermopower output over 9000 μV under a temperature gradient of 30 K. This study presents a viable strategy for realizing programmable and scalable molecular thermoelectrics by utilizing photoswitchable bithermoelectric molecular devices.

**Abstract:** This paper proposes Deep Surface Plasmon Resonance (DSPR)-DNN, a novel approach for accurately predicting dynamic shifts in surface plasmon resonance (SPR) spectra exhibited by photoresponsive molecules adsorbed on metallic surfaces. Current analytical models for SPR data often struggle to account for complex interactions, temperature drift, and transient phenomena. DSPR-DNN leverages a deep neural network regression architecture, trained on a comprehensive dataset of simulated and experimentally acquired SPR data, to achieve significantly improved predictive accuracy and real-time monitoring capabilities, facilitating advancements in photo-switchable materials and optoelectronic devices.

**초록:** 본 연구는 표면에서의 광화학적 데이터 저장 기술의 한계를 극복하고 고밀도 데이터 저장 가능성을 높이기 위해, 다중 광응답 물질(Multi-Photoresponsive Materials, MPRM)을 활용한 삼차원 패턴 구현 및 읽기 방법을 제시한다. 특히, NLO(Nonlinear Optics) 효과를 이용한 복잡한 삼차원 패턴 형성을 제어하고, 광학적 오류 발생 가능성을 최소화하기 위한 데이터 코딩 및 오류 수정 코드 식별 알고리즘을 개발한다. 제안 모델은 기존 광화학적 저장 방식에 비해 데이터 밀도와 안정성 측면에서 괄목할 만한 성능 향상을 가져올 것으로 기대된다.

**서론** 표면에서의 광감응성 단분자막은 빛의 에너지와 단분자 층의 특성을 결합하여 다양한 기능적 응용 가능성을 제공한다. 특히, 바이오 센서 분야에서 광감응성 물질의 뛰어난 감도와 선택성은 실시간 세포 신호 분석 및 질병 진단에 혁신적인 변화를 가져올 수 있다. 본 연구는 표면 플라즈몬 공명(SPR) 기술과 광감응성 단분자막(Photoresponsive SAM, pSAM)을 결합하여 고감도 바이오 센서를 개발하고, 실시간 세포 신호 분석을 위한 다층 기능화 전략을 제시한다. 특히, 기존 연구의 한계점을 극복하기 위해 단분자막의 광유도 구조 변화, 세포와의 상호작용, 신호 증폭 메커니즘을 정량적으로 모델링하고 최적화하여, 현저히 향상된 바이오 센서 성능을 달성한다.

Photoresponsive hydrogels are of interest as candidates for materials that compute. Here the authors design a NAND logic gate based on the interactions of self-trapped laser beams in a hydrogel system...

Two-dimensional polyaramid polymers are synthesized to form nanofilms that exhibit the lowest gas permeability of any polymer by orders of magnitude, despite lacking crystallinity, enabling molec...

Photoresponsive nanomachines are attractive components of functional nanodevices and nanosystems. To develop new photoresponsive nucleic acid-based nanomachines, we conjugated 8-pyrenylvinylguanine…

Single-chain magnets (SCMs), characterized by slow magnetic relaxation, hold immense promise for future data storage and advanced materials. Integrating photoswitchable electron transfer coupled spin...

The reversible covalent bond formation that underpins dynamic covalent chemistry (DCC) enables the construction of stimuli-responsive systems and the efficient assembly of complex architectures. While most DCC studies have focused on systems at thermodynamic equilibrium, there is growing interest in systems

Light serves as an exceptional stimulus for the precise spatiotemporal regulation of protein activity and protein–protein interactions. Here, we introduce a light-responsive supramolecular ligand syst...