This study used photochemical reduction to successfully synthesize triangular silver nanoplates (TAgNPs) and silver nanodecahedrons (AgNDs) with higher light-absorption and higher light-scattering properties, respectively, for the same wavelength. To analyze the contribution of light-absorption and light-scattering of silver nanoparticles to the localized surface plasmon resonance (LSPR) effect, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate was doped with TAgNPs or AgNDs at the same concentration (1.17 μg/cm²) and made into polymer light-emitting diodes (PLEDs). According to the current density-voltageluminance characteristics and electroluminescence (EL) spectra, the enhancement factors for current efficiency and EL intensity for AgND-containing PLEDs were found to be higher than those for PLED with TAgNPs by 24.9% and 138%, respectively. This shows that the metal nanoparticles with higher light-scattering property can induce a relatively strong LSPR effect, which possibly gives a hint to design plasmonic photovoltaic in future.

本研究使用光化学还原成功地合成了三角形银纳米片 (TAgNPs) 和银纳米十面体 (AgNDs)，对于相同的波长分别具有更高的光吸收和更高的光散射特性。为了分析银纳米粒子的光吸收和光散射对局域表面等离子体共振 (LSPR) 效应的贡献，聚（3,4-乙撑二氧噻吩）聚苯乙烯磺酸盐以相同浓度（1.17 μg/厘米²) 并制成聚合物发光二极管 (PLED)。根据电流密度-电压亮度特性和电致发光 (EL) 光谱，发现含 AgND 的 PLED 的电流效率和 EL 强度的增强因子比含 TAgNP 的 PLED 的增强因子分别高 24.9% 和 138%。这表明具有较高光散射特性的金属纳米粒子可以诱导相对较强的 LSPR 效应，这可能为未来设计等离子体光伏提供提示。