Among the different technologies to harvest renewable energy, thermoelectric (TE) generators (TEGs) represent a highly promising route capable of converting heat to electricity based on the Seebeck effect. Here, a new room temperature (RT) one-pot solution synthesis approach was proposed, together with a sulfur-doping strategy, to optimize the flexibility and the power factor of n-type S-doped Ag₂Se TE thin films deposited by solution-processes, requiring only mild post-deposition annealing at 150 °C. Optimized S-doped flexible Ag₂Se thin films exhibited a maximum power factor of ∼2058 μW/m/K² at RT, allowing for the fabrication of flexible TEGs with a maximum power output (P_max) of 3.98 μW under a near-RT ΔT of 31 K, equivalent to a power density of 11.06 W/m². Multidomain applications were further demonstrated by these heavy-metal–free, flexible TEGs to harvest near-RT waste heat from laptop computers, non-concentrated sun light, and human body together with the realization of a self-powered motion detector. The current findings open promising paths for innovations on low-cost wearable smart electronics and energy harvesting.

在收集可再生能源的不同技术中，热电 (TE) 发电机 (TEG) 代表了一种非常有前途的途径，能够根据塞贝克效应将热能转化为电能。在这里，提出了一种新的室温 (RT) 一锅法溶液合成方法，以及硫掺杂策略，以优化通过溶液沉积的 n 型 S 掺杂 Ag 2 Se TE 薄膜的柔韧性和_功率因数-工艺，仅需要在 150 °C 下进行温和的沉积后退火。优化的 S 掺杂柔性 Ag ₂ Se 薄膜在室温下表现出 ~2058 μW/m/K ²的最大功率因数，允许制造具有最大功率输出 ( P _max) 在 31 K 的近室温 ΔT 下为 3.98 μW，相当于 11.06 W/m ²的功率密度。这些不含重金属的柔性 TEG 进一步展示了多域应用，以收集来自笔记本电脑、非集中太阳光和人体的近 RT 余热，并实现了自供电运动检测器。目前的研究结果为低成本可穿戴智能电子产品和能量收集的创新开辟了有前途的道路。