Highly efficient and mechanically resilient transparent electrodes for indoor organic photovoltaics (OPVs) have attracted significant interest based on the emergence of the internet of things. In this study, transparent composite electrodes (TCEs) were fabricated by blending copper nanowires (CuNWs) with the conductive polymer poly (3, 4-ethylenedioxythiophene): poly (styrene-sulfonic acid) (PEDOT:PSS, PH1000). The optimized PEDOT:PSS: CuNW-based TCEs exhibited a high transmittance of approximately 90% at a wavelength of 460 nm, excellent flexibility with a change in resistance < 1.0%, and a smooth surface morphology with a root-mean-squared roughness value of 1.85 nm. As a result, the TCE-based flexible OPVs demonstrated an outstanding power conversion efficiency (PCE) of 17.6% ± 0.2% under 1000-lx light-emitting diode illumination, which is approximately 25% higher than that of OPVs with a reference indium-tin-oxide (ITO) electrode. Additionally, they exhibited exceptional mechanical durability while retaining 85% of their original PCE after bending 500 times with a bending radius of 3.8 mm. These results suggest that the excellent optoelectronic properties of the proposed TCEs should make them promising alternatives to costly ITO electrodes, thereby improving the economic feasibility and stability of indoor OPVs.

基于物联网的出现，用于室内有机光伏 (OPV) 的高效且具有机械弹性的透明电极引起了人们的极大兴趣。在这项研究中，透明复合电极 (TCE) 通过将铜纳米线 (CuNWs) 与导电聚合物聚 (3, 4-亚乙基二氧噻吩): 聚(苯乙烯-磺酸) (PEDOT:PSS, PH100​​0) 混合制成。优化后的 PEDOT:PSS: CuNW 基 TCEs 在 460 nm 波长下表现出约 90% 的高透光率，优异的柔韧性，电阻变化 < 1.0%，以及具有均方根粗糙度值的光滑表面形态1.85 纳米。因此，基于 TCE 的柔性 OPV 在 1000-lx 发光二极管照明下表现出 17.6% ± 0.2% 的出色功率转换效率 (PCE)，这比具有参考氧化铟锡 (ITO) 电极的 OPV 高约 25%。此外，它们表现出卓越的机械耐久性，同时在以 3.8 毫米的弯曲半径弯曲 500 次后仍保持其原始 PCE 的 85%。这些结果表明，所提出的 TCE 的优异光电性能应该使其成为昂贵的 ITO 电极的有希望的替代品，从而提高室内 OPV 的经济可行性和稳定性。