PMID- 19858553 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20100121 LR - 20091030 IS - 1361-6528 (Electronic) IS - 0957-4484 (Linking) VI - 20 IP - 47 DP - 2009 Nov 25 TI - Tuning of operation mode of ZnO nanowire field effect transistors by solvent-driven surface treatment. PG - 475702 LID - 10.1088/0957-4484/20/47/475702 [doi] AB - We report on the adjustment of the operation voltage in ZnO nanowire field effect transistors (FETs) by a simple solvent treatment. We have observed that by submerging ZnO nanowires in isopropyl alcohol (IPA), the surface of the ZnO nanowires is etched, generating surface roughness, and their defect emission peak becomes stronger. In particular, ZnO nanowire FETs before IPA treatment operate in the depletion-mode, but are converted to the enhancement-mode with a positive shift of threshold voltage after submersion in IPA. This solvent treatment can be a useful method for controlling the operation mode of ZnO nanowire FETs for wide applications of nanowire-based electronic devices and circuits. FAU - Park, Woojin AU - Park W AD - Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea. FAU - Hong, Woong-Ki AU - Hong WK FAU - Jo, Gunho AU - Jo G FAU - Wang, Gunuk AU - Wang G FAU - Choe, Minhyeok AU - Choe M FAU - Maeng, Jongsun AU - Maeng J FAU - Kahng, Yung Ho AU - Kahng YH FAU - Lee, Takhee AU - Lee T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091026 PL - England TA - Nanotechnology JT - Nanotechnology JID - 101241272 EDAT- 2009/10/28 06:00 MHDA- 2009/10/28 06:01 CRDT- 2009/10/28 06:00 PHST- 2009/10/28 06:00 [entrez] PHST- 2009/10/28 06:00 [pubmed] PHST- 2009/10/28 06:01 [medline] AID - S0957-4484(09)26390-2 [pii] AID - 10.1088/0957-4484/20/47/475702 [doi] PST - ppublish SO - Nanotechnology. 2009 Nov 25;20(47):475702. doi: 10.1088/0957-4484/20/47/475702. Epub 2009 Oct 26.