Permanent increase of the electrical conductivity of polymers induced by ultraviolet laser radiation
- 28 January 1991
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 58 (4) , 428-430
- https://doi.org/10.1063/1.104624
Abstract
When polyimide (Kapton) or polybenzimidazole (PBI) are irradiated by a 248 nm KrF laser, their electrical conductivity is increased permanently. Conductivity increases of up to fifteen orders of magnitude were observed, and conductivities on the order of 1–10 Ω−1 cm−1 were obtained. The laser‐induced conductivity increase of polyimide depends on the fluence per laser shot and the total fluence delivered (dosage) and exhibits a fluence threshold of ∼20 mJ cm−2 per laser shot, as well as a dosage threshold.Keywords
This publication has 10 references indexed in Scilit:
- Micropatterning of surfaces by excimer laser projectionJournal of Vacuum Science & Technology B, 1989
- Laser and ion beam processing of conductive polyimideApplied Surface Science, 1989
- Electrical conduction in polyimide between 20 and 350° CJournal of Electronic Materials, 1987
- Synthesis of conductive polymers by laser irradiation of chlorinated PVCJournal of Polymer Science Part C: Polymer Letters, 1987
- Ablation of Polymers and Biological Tissue by Ultraviolet LasersScience, 1986
- Electrical conduction in polyimide filmsJournal of Applied Physics, 1986
- Excimer laser etching of polyimideJournal of Applied Physics, 1985
- Ion-beam-induced conductivity in polymer filmsJournal of Applied Physics, 1983
- Laser-formed connections using polyimideApplied Physics Letters, 1983
- Thermal degradation of an aromatic polypyromellitimide in air and vacuum III—Pyrolytic conversion into a semiconductorPolymer, 1965