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Thin-films on cellulose paper to construct thermoelectric generator of promising power outputs suitable for low-grade heat recovery
Materials Today Communications, Volume: 29, Start page: 102738
Swansea University Authors: Rafiq Mulla, Daniel Jones, Charlie Dunnill
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DOI (Published version): 10.1016/j.mtcomm.2021.102738
Here, cellulose paper-based thermoelectric generators packaged inside Kapton layers are fabricated that demonstrate enhanced physical stability and flexibility with impressive power outputs at low temperature heating. The work introduces a successful combination of copper iodide (CuI) and bismuth (B...
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Here, cellulose paper-based thermoelectric generators packaged inside Kapton layers are fabricated that demonstrate enhanced physical stability and flexibility with impressive power outputs at low temperature heating. The work introduces a successful combination of copper iodide (CuI) and bismuth (Bi) coated cellulose papers, two non-toxic and simple conductors which act as p-type and n-type legs in the generator, respectively. The power output characteristics of a generator comprising ten p-n junctions are measured and analysed at different temperature gradients. A high output voltage of 84.5 mV and corresponding output power of 215 nW are obtained from the device at a temperature difference (ΔT) of ~50 ºC, which is comparable to expensive and toxic thermoelectric devices reported in the literature. The presented device fabrication method is a very simple and economical approach to fabricate paper based eco-friendly thermoelectric devices that can be used for low-grade heat conversion applications.
Thermoelectric, CuIpaper generator, bismuth, device fabrication
Faculty of Science and Engineering
Welsh Government (EU European Regional Development Fund) for funding the RICE (Reducing Industrial Carbon Emission) project (Grant Number: 81435). Swansea University College of Engineering AIM Facility, which was funded in part by the EPSRC (EP/M028267/1), the European Regional Development Fund through the Welsh Government (80708) and the Ser Solar project via Welsh Government.