(12) United States Patent (10) Patent No.: US 6,756,025 B2 Colbert Et Al
111111 1111111111111111111111111111111111111111111111111111111111111 US006756025B2 (12) United States Patent (10) Patent No.: US 6,756,025 B2 Colbert et al. (45) Date of Patent: Jun.29,2004 (54) METHOD FOR GROWING SINGLE-WALL 5,381,101 A * 1!1995 Bloom eta!. ............... 250/306 CARBON NANOTUBES UTILIZING SEED 5,503,010 A * 4/1996 Yamanaka ................... 73/105 MOLECULES 5,824,470 A * 10/1998 Baldschwieler eta!. ....... 435/6 6,183,714 B1 * 2/2001 Smalley eta!. ......... 423/445 B (75) Inventors: Daniel T. Colbert, Houston, TX (US); 6,333,016 B1 * 12/2001 Resasco et a!. .. ... ... 423/445 B Hongjie Dai, Sunnyvale, CA (US); FOREIGN PATENT DOCUMENTS Jason H. Hafner, Houston, TX (US); Andrew G. Rinzler, Houston, TX EP 1 176 234 A2 12/1993 (US); Richard E. Smalley, Houston, wo wo 9618059 * 6/1996 TX (US) OTHER PUBLICATIONS (73) Assignee: William Marsh Rice University, Chico et al., "Pure Carbon Nanoscale Devices: Nanotube Houston, TX (US) Heterojunctions", Physical Review Letters, vol. 76, No. 6, ( *) Notice: Subject to any disclaimer, the term of this Feb. 5, 1996, pp. 971-974.* patent is extended or adjusted under 35 Thess et al., "Crystalline Ropes of Metallic Carbon Nano U.S.C. 154(b) by 271 days. tubes", Science, vol. 273, Jul. 26, 1996, pp. 483-487.* Dresselhaus et al., "Science of Fullerenes and Carbon N ana (21) Appl. No.: 10/027,568 tubes", 1996, pp. 742-747, 818, 858-860.* Li, et al., "Large-Scale Synthesis of Aligned Carbon Nano (22) Filed: Dec. 21, 2001 tubes," Science, vol. 274, Dec. 6, 1996, pp. 1701-1703. ( 65) Prior Publication Data Liu, et al., "Fullerene Pipes," Science, vol.
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