Ren Guoping, Hu Qichang, Ye Jie, Hu Andong, Lü Jian, Zhou Shungui
College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China.
College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou, China.
Research (Wash D C). 2022 Aug 20;2022:9873203. doi: 10.34133/2022/9873203. eCollection 2022.
Hygroelectricity generators (HEGs) utilize the latent heat stored in environmental moisture for electricity generation, but nevertheless are showing relatively low power densities due to their weak energy harvesting capacities. Inspired by epiphytes that absorb ambient moisture and concurrently capture sunlight for dynamic photosynthesis, we propose herein a scenario of all-biobased hydrovoltaic-photovoltaic electricity generators (HPEGs) that integrate photosystem II (PSII) with () for simultaneous energy harvesting from both moisture and sunlight. This proof of concept illustrates that the all-biobased HPEG generates steady hygroelectricity induced by moisture absorption and meanwhile creates a photovoltaic electric field which further strengthens electricity generation under sunlight. Under environmental conditions, the synergic hydrovoltaic-photovoltaic effect in HPEGs has resulted in a continuous output power with a high density of 1.24 W/m, surpassing all HEGs reported hitherto. This work thus provides a feasible strategy for boosting electricity generation via simultaneous energy harvesting from ambient moisture and sunlight.
吸湿发电装置（HEGs）利用环境湿度中储存的潜热来发电，但由于其能量收集能力较弱，功率密度相对较低。受附生植物吸收环境水分并同时捕获阳光进行动态光合作用的启发，我们在此提出一种全生物基的水电 - 光伏发电装置（HPEGs）方案，该装置将光系统II（PSII）与（）整合，以同时从水分和阳光中收集能量。这一概念验证表明，全生物基HPEGs通过吸湿产生稳定的吸湿电，同时产生光伏电场，在阳光下进一步增强发电。在环境条件下，HPEGs中的协同水电 - 光伏效应产生了连续的输出功率，功率密度高达1.24 W/m，超过了迄今为止报道的所有HEGs。因此，这项工作为通过同时从环境湿度和阳光中收集能量来提高发电效率提供了一种可行的策略。
