Increase of electrical conductivity of solid C60 films by excimer laser radiation

Qihong Lou; Dong Ning; Jinxing Dong; Yunrong Wei

doi:10.1117/12.237761

8 April 1996 Increase of electrical conductivity of solid C₆₀ films by excimer laser radiation

Qihong Lou, Dong Ning, Jinxing Dong, Yunrong Wei

Proceedings Volume 2703, Lasers as Tools for Manufacturing of Durable Goods and Microelectronics; (1996) https://doi.org/10.1117/12.237761
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

After being irradiated in air by XeCl (308 nm) excimer laser, the electrical conductivity of solid thin-film C₆₀ has been improved by more than six orders of magnitudes. The products resulting from laser irradiation of C₆₀ films have been investigated by Raman scattering and the onset of conductivity can be attributed to laser-induced oxygenation and disintegration of fullerene. Irradiated by approximately 40 ns laser pulses with different fluence, the products with different microstructure were observed. At lower fluence, the Raman features of microcrystalline graphite and fullerene polymer were observed. At a fluence just below the ablation threshold (36 mJ/cm²), the fullerene molecules in film were disintegrated completely and transformed to amorphous graphite.

Citation Download Citation

Qihong Lou, Dong Ning, Jinxing Dong, and Yunrong Wei "Increase of electrical conductivity of solid C₆₀ films by excimer laser radiation", Proc. SPIE 2703, Lasers as Tools for Manufacturing of Durable Goods and Microelectronics, (8 April 1996); https://doi.org/10.1117/12.237761

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