Study on Current Transform Features of Single-Molecule C₆₀ Based on Band Theory

Abstract:

This single-molecule C60 system with two atomic lines as left input electrode and right output electrode is calculated by simulation using the Green，s function method based on the density function theory. The characteristics of current transmission of single-molecule C60 which include I-V curve, current-temperature changing and transmission spectrum are given. The resonant switching is shown from the single-molecule C60 transmission spectrum, differential negative resistance (NDR) and the high ratio of current peak and current valley are also indicated from the I-V curve. The conclusions can be explained using band theory very well and finally the impact of temperature for current of this C60 single-molecule system is discussed etc.

• Periodical: Advanced Materials Research (Volumes 148-149)
• Pages: 837-840
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.148-149.837
• Online since: October 2010
• Authors: Guo Jing, Qiu Cheng Jun, Liu Fang
• Keywords: Band Theory, C₆₀, Density Function Theory (DFT), NDR

References

[1] Kroto H W, Heath J R, O Brien S C: Nature Vol. 162 (1985), p.318.

[2] Iijima S: Nature Vol. 354 (1991), p.561991.

[3] Jia Hequn, Huang Ziqiang : Advanced Display (In Chinese, 2006).

[4] Wang Liguang, Yu Dingwen, Li Yong: Journal of Synthetic Crystals (In Chinese, 2005).

[5] Shen Haijun, Mu Xiancai: Nanoscience & Structure (In Chinese, 2005).

[6] Lee Y J, Brandbyge M, Puska M J: Physical Review (2004).

[7] DAMLE P: Physical Review (2001).

[8] Landauer R: Phys Letters (1981).

[9] Tagami K, Wang Liguang, Tsukada M: Nana Letters (2004).