PMID- 28074784 OWN - NLM STAT- Publisher LR - 20240227 IS - 1361-6528 (Electronic) IS - 0957-4484 (Linking) VI - 28 IP - 7 DP - 2017 Jan 11 TI - Electronic properties and transistors of the NbS(2)-MoS(2)-NbS(2) NR heterostructure. PG - 075702 LID - 10.1088/1361-6528/aa5365 [doi] AB - Based on density function theory and nonequilibrium Green's functions, we construct a NbS(2)-MoS(2)-NbS(2) NR inplane heterostructure. The effects of channel length, width, chirality and vacancy of the heterostructure on transport properties are systematically investigated. The electron transport of the armchair-edge heterostructure device shows ballistic transport properties, while the zigzag-edge heterostructure device exhibits resonance tunneling transport properties. Further study indicates NbS(2)-MoS(2)-NbS(2) field effect transistors (FETs) to be excellent ambipolar transistors. The FETs have high performances with current on/off ratio 4.7 x 10(5) and subthreshold swing 90 mV/decade with channel length m = 16 and width n = 6. Increases in the channel length sharply reduce the off-state current and enhance the performance of the devices significantly. FAU - Liu, Qi AU - Liu Q AD - School of Physics and Electronics, and Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, Central South University, Changsha 410083, People's Republic of China. FAU - Ouyang, Fangping AU - Ouyang F FAU - Yang, Zhixiong AU - Yang Z FAU - Peng, Shenglin AU - Peng S FAU - Zhou, Wenzhe AU - Zhou W FAU - Zou, Hui AU - Zou H FAU - Long, Mengqiu AU - Long M FAU - Pan, Jiangling AU - Pan J LA - eng PT - Journal Article DEP - 20170111 PL - England TA - Nanotechnology JT - Nanotechnology JID - 101241272 EDAT- 2017/01/12 06:00 MHDA- 2017/01/12 06:00 CRDT- 2017/01/12 06:00 PHST- 2017/01/12 06:00 [entrez] PHST- 2017/01/12 06:00 [pubmed] PHST- 2017/01/12 06:00 [medline] AID - 10.1088/1361-6528/aa5365 [doi] PST - aheadofprint SO - Nanotechnology. 2017 Jan 11;28(7):075702. doi: 10.1088/1361-6528/aa5365.