{'fraction_non_alphanumeric': 0.02335456475583864, 'fraction_numerical': 0.004246284501061571, 'mean_word_length': 4.785276073619632, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Design of a planar-type uni-leg SiGe thermoelectric generator

A planar-type uni-leg thermoelectric generator (TEG) using a SiGe membrane is proposed and analyzed theoretically. First, we built a model for a unit cell of the TEG, which can be fabricated by photolithography which is suitable for mass production. Then, the output power density was simulated by the finite element method to find the optimal dimension of the TEG. The estimated maximum power density at the optimized design is about 10 μW · cm−2, under an ambient temperature difference of 1 K, and increases with the square of the temperature difference. We also analyzed the thermal and electrical resistances of the TEG, which revealed that the balance of the output power of one unit and the footprint is important for the optimization of the TEG. This study provides useful knowledge about designing and optimal dimensions of planar-type TEGs based on thin-film materials.