Triboelectric, morphological and surface characterization data of polycarbonate fibers electrospun at positive and negative voltage polarity

Raw and processed data underlying the article "Voltage polarity-tuned electrospun polycarbonate fibers for counterface-specific triboelectric energy harvesting" (submitted to ACS Applied Materials & Interfaces) and its Supporting Information. Polycarbonate (PC) fibers were electrospun at +31 kV (PC+) and -31 kV (PC-) under otherwise identical conditions and tested as active layers of contact-separation triboelectric nanogenerators against aluminum and PTFE counterfaces at load resistances from 0.1 to 900 MOhm. The record contains: (1) 60 raw current records (PicoScope CSV, 200 s, ~500 Hz) and their index; (2) processed electrical data: peak-to-peak current, peak power and peak power density of every record with cycle-to-cycle SD, ratios between the fiber types and per-cycle values at 75 MOhm; (3) SEM images (TIFF) of as-spun mats and of mats after contact cycling; (4) fiber diameters and mat thickness readings; (5) FTIR spectra; (6) DSC curves and glass transition evaluation; (7) tensile test records; (8) KPFM surface potential values; (9) angle-resolved XPS surface composition and digitized C 1s and O 1s spectra; (10) source data of all figure panels and the text of all tables of the article and the Supporting Information. README.md describes the whole record, the measurements, the processing and the file formats; each archive contains its own README.txt. CHECKSUMS_SHA256.txt lists the SHA-256 checksums of all files.