In order to break through the limit of low power conversion efficiency (PCE) of dye-sensitized solar cell (DSSC) with single photon management architecture in photoanode, herein, we propose a novel architecture, composed of a TiO₂ nanotube photonic crystal (TiO₂ NTPC) layer and in-suit deposited Au plasmonic nanoparticles (Au NPs), as photoanode for DSSC applications. The designed photoanode is expected to significantly increase the light harvesting in DSSCs, due to the synergistic effect of the photonic crystal (PC) effect originates from TiO₂ NTPC and the surface plasmon resonance (SPR) effect from Au NPs. This synergistic effect of the newly designed photoanode and its functionality in DSSCs are discussed by both experimental and simulated results. Moreover, when the SPR band of Au NPs has been tailored to best match with the bandgap of TiO₂ NTPC, the maximum enhancement in power conversion efficiency (PCE, 44.7%), which exceeds the sum enhancement producing by coupling individual TiO₂ NTPC (22.1%) or Au NPs (18.0%), has been achieved by introducing the designed Au NPs/TiO₂ NTPC photoanode, yielding a PCE of 5.63% in the NT-based DSSCs. The work presented here provides new insights into the design and application of SPR/PC coupling architectures for high efficient light management and synergistically enhanced light harvesting in photovoltaic devices.

为了突破光阳极中具有单光子管理架构的染料敏化太阳能电池（DSSC）的低功率转换效率（PCE）的局限性，本文提出了一种由TiO ₂纳米管光子晶体（TiO）组成的新型架构。₂ NTPC）层和适合沉积的金等离激元纳米粒子（Au NPs），作为DSSC应用的光阳极。由于光子晶体（PC）的协同效应源自TiO ₂，因此设计的光电阳极有望显着增加DSSC中的光收集。金纳米颗粒对NTPC和表面等离振子共振（SPR）的影响。实验和仿真结果都讨论了新设计的光电阳极的这种协同效应及其在DSSC中的功能。此外，当对Au NP的SPR谱带进行定制以使其与TiO ₂ NTPC的带隙最匹配时，功率转换效率的最大增强（PCE，44.7％），超过了通过耦合单个TiO ₂ NTPC产生的总和增强（通过引入设计的Au NPs / TiO ₂已达到22.1％）或Au NPs（18.0％）NTPC光电阳极，在基于NT的DSSC中的PCE为5.63％。此处介绍的工作为SPR / PC耦合体系结构的设计和应用提供了新的见解，可用于光伏设备中的高效光管理和协同增强的光收集。