A high-efficient photo-thermoelectric coupling generator of cuprous iodide
Source abstract
Abstract
Thermoelectric (TE) energy converters have attracted great interest due to their maintenance-free, long-life, and high-reliability properties. However, improving the output power of TE devices remains a huge challenge. In this work, a high-efficient photo-TE coupling generator based on cuprous iodide (CuI) film is proposed to increase the output power of TE devices. Here, CuI film was prepared by the successive ionic layer adsorption and reaction method. The influence of the photovoltaic (PV) effect on the TE output voltage of CuI film was investigated by an analysis of the experimental results. The results showed that the output voltage of the photo-TE coupling generator had a maximum increment of 83.47% at 343 K compared to the sum of TE and PV voltages. The increase in the output voltage was mainly because of the PV effect rather than the TE effect, while the photo-generated electrons also induce a considerable change in the TE figure of merit. Hence, the strategy proposed in this work might be a potential approach to further improve the output performance of other TE materials.
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Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Perovskite Materials and Applications · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Energy and Mechanical Engineering, Shanghai University of Electric Power 1 , Shanghai 200090, China
Gannan State Grid Electric Power Company 2 , Gannan 747199, China
Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power 3 , Shanghai 200090, China
Shanghai Non-Carbon Energy Conversion and Utilization Institute 4 , Shanghai 200240, China
Funding
Natural Science Foundation of Shanghai · State Gansu Electric Power Company Municipality · Capacity Building Projects in Local Universities of Science and Technology Commission of Shanghai Municipality · Science and Technology Commission of Shanghai Municipality
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Show source-provided references
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