PMID- 28994396 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20180723 LR - 20180723 IS - 1361-6528 (Electronic) IS - 0957-4484 (Linking) VI - 28 IP - 47 DP - 2017 Nov 24 TI - Analysis of noise generation and electric conduction at grain boundaries in CVD-grown MoS(2) field effect transistors. PG - 47LT01 LID - 10.1088/1361-6528/aa9236 [doi] AB - Grain boundaries in a chemical vapour deposition (CVD)-grown monolayer of MoS(2) induce significant effects on the electrical and low frequency noise characteristics of the MoS(2). Here, we investigated the electrical properties and noise characteristics of MoS(2) field effect transistors (FETs) made with CVD-grown monolayer MoS(2). The electrical and noise characteristics of MoS(2) FETs were analysed and compared for the MoS(2) channel layers with and without grain boundaries. The grain boundary in the CVD-grown MoS(2) FETs can be the dominant noise source, and dependence of the extracted Hooge parameters on the gate voltage indicated the domination of the correlated number-mobility fluctuation at the grain boundaries. The percolative noise characteristics of the single grain regions of MoS(2) were concealed by the noise generated at the grain boundary. This study can enhance understanding of the electrical transport hindrance and significant noise generation by trapped charges at grain boundaries of the CVD-grown MoS(2) devices. FAU - Kim, Jae-Keun AU - Kim JK FAU - Song, Younggul AU - Song Y FAU - Kim, Tae-Young AU - Kim TY FAU - Cho, Kyungjune AU - Cho K FAU - Pak, Jinsu AU - Pak J FAU - Choi, Barbara Yuri AU - Choi BY FAU - Shin, Jiwon AU - Shin J FAU - Chung, Seungjun AU - Chung S FAU - Lee, Takhee AU - Lee T LA - eng PT - Journal Article PL - England TA - Nanotechnology JT - Nanotechnology JID - 101241272 EDAT- 2017/10/11 06:00 MHDA- 2017/10/11 06:01 CRDT- 2017/10/11 06:00 PHST- 2017/10/11 06:00 [pubmed] PHST- 2017/10/11 06:01 [medline] PHST- 2017/10/11 06:00 [entrez] AID - 10.1088/1361-6528/aa9236 [doi] PST - ppublish SO - Nanotechnology. 2017 Nov 24;28(47):47LT01. doi: 10.1088/1361-6528/aa9236.