It is well acknowledged that CNT veils can absorb oxygen and/or moisture from the environments, resulting in the formation of hole-like carriers acting as p-type dopants, 20 hence an increasing trend of p-type TE property after several days of exposure to the environments.
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Toward Self-Powered Sensing and Thermal Energy Harvesting in High-Performance Composites v<i>ia</i> Self-Folded Carbon Nanotube Honeycomb Structures.
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