Gold Nanoparticles Photosensitization towards 3,4,9,10-Perylenetetracarboxylic Dianhydride Integrated with a Dual-Particle Three-Dimensional DNA Roller: A General "ON-OFF-ON" Photoelectric Plasmon-Enhanced Biosensor.

光电化学生物传感系统中，高初始信号对灵敏检测分析物至关重要。3,4,9,10-芘四羧酸二酐（PTCDA）是有机半导体，具有约2.5 eV光学带隙和强而稳定的光电化学（PEC）响应。将金纳米颗粒（Au NPs）电沉积于PTCDA表面形成肖特基结后，展现出优异PEC性能。基于Au NPs/PTCDA的PEC行为和金纳米簇（Au NCs）...