PMID- 22512336 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20120910 LR - 20120522 IS - 1936-086X (Electronic) IS - 1936-0851 (Linking) VI - 6 IP - 5 DP - 2012 May 22 TI - Remote doping and Schottky barrier formation in strongly quantum confined single PbSe nanowire field-effect transistors. PG - 4328-34 LID - 10.1021/nn3009382 [doi] AB - We report studies of charge injection and transport in ambipolar, predominantly n-type, and unipolar p-type single, strongly quantum confined PbSe nanowire (NW) field effect transistors (FETs). The PbSe NW FETs operate as Schottky barrier FETs in which the Fermi level is pinned near midgap, consistent with the low ionicity of PbSe, and is nearly invariant with semiconductor doping. Electron and hole mobilities increase monotonically with decreasing temperature, dominated at high temperature by electron-phonon scattering with no evidence of scattering at low temperatures. Transport in NWs is consistent with their single crystalline nature. Surface oxygen used to dope the NWs acts remotely, providing a promising route to dope nanostructures. FAU - Oh, Soong Ju AU - Oh SJ AD - Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. FAU - Kim, David K AU - Kim DK FAU - Kagan, Cherie R AU - Kagan CR LA - eng PT - Journal Article DEP - 20120427 PL - United States TA - ACS Nano JT - ACS nano JID - 101313589 EDAT- 2012/04/20 06:00 MHDA- 2012/04/20 06:01 CRDT- 2012/04/20 06:00 PHST- 2012/04/20 06:00 [entrez] PHST- 2012/04/20 06:00 [pubmed] PHST- 2012/04/20 06:01 [medline] AID - 10.1021/nn3009382 [doi] PST - ppublish SO - ACS Nano. 2012 May 22;6(5):4328-34. doi: 10.1021/nn3009382. Epub 2012 Apr 27.