PMID- 19159186 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20090406 LR - 20200930 IS - 1530-6984 (Print) IS - 1530-6984 (Linking) VI - 9 IP - 2 DP - 2009 Feb TI - Selective growth of well-aligned semiconducting single-walled carbon nanotubes. PG - 800-5 LID - 10.1021/nl803496s [doi] AB - High-density arrays of perfectly aligned single-walled carbon nanotubes (SWNTs) consisting almost exclusively of semiconducting nanotubes were grown on ST-cut single crystal quartz substrates. Raman spectroscopy together with electrical measurements of field effect transistors (FETs) fabricated from the as-grown samples showed that over 95% of the nanotubes in the arrays are semiconducting. The mechanism of selective growth was explored. It is proposed that introducing methanol in the growth process, combined with the interaction between the SWNTs and the quartz lattice, leads to the selective growth of aligned semiconducting nanotubes. Such a high density of horizontally aligned semiconducting SWNTs can be readily used in high current nanoFETs and sensors. This method demonstrates great promise to solve one of the most difficult problems which limits application of carbon nanotubes in nanoelectronicsthe coexistence of metallic and semiconducting nanotubes in samples produced by most, if not all, growth methods. FAU - Ding, Lei AU - Ding L AD - Department of Chemistry, Duke University, Durham, North Carolina 27708, USA. FAU - Tselev, Alexander AU - Tselev A FAU - Wang, Jinyong AU - Wang J FAU - Yuan, Dongning AU - Yuan D FAU - Chu, Haibin AU - Chu H FAU - McNicholas, Thomas P AU - McNicholas TP FAU - Li, Yan AU - Li Y FAU - Liu, Jie AU - Liu J LA - eng PT - Journal Article PL - United States TA - Nano Lett JT - Nano letters JID - 101088070 EDAT- 2009/01/23 09:00 MHDA- 2009/01/23 09:01 CRDT- 2009/01/23 09:00 PHST- 2009/01/23 09:00 [entrez] PHST- 2009/01/23 09:00 [pubmed] PHST- 2009/01/23 09:01 [medline] AID - 10.1021/nl803496s [pii] AID - 10.1021/nl803496s [doi] PST - ppublish SO - Nano Lett. 2009 Feb;9(2):800-5. doi: 10.1021/nl803496s.