PT  - JOURNAL ARTICLE
AU  - Cao, Jun
AU  - Li, Tianshu
AU  - Gao, Hongze
AU  - Lin, Yuxuan
AU  - Wang, Xingzhi
AU  - Wang, Haozhe
AU  - Palacios, Tomás
AU  - Ling, Xi
TI  - Realization of 2D crystalline metal nitrides via selective atomic substitution
AID  - 10.1126/sciadv.aax8784
DP  - 2020 Jan 01
TA  - Science Advances
PG  - eaax8784
VI  - 6
IP  - 2
4099  - http://advances.sciencemag.org/content/6/2/eaax8784.short
4100  - http://advances.sciencemag.org/content/6/2/eaax8784.full
SO  - Sci Adv2020 Jan 01; 6
AB  - Two-dimensional (2D) transition metal nitrides (TMNs) are new members in the 2D materials family with a wide range of applications. Particularly, highly crystalline and large area thin films of TMNs are desirable for applications in electronic and optoelectronic devices; however, the synthesis of these TMNs has not yet been achieved. Here, we report the synthesis of few-nanometer thin Mo5N6 crystals with large area and high quality via in situ chemical conversion of layered MoS2 crystals. The versatility of this general approach is demonstrated by expanding the method to synthesize W5N6 and TiN. Our strategy offers a new direction for preparing 2D TMNs with desirable characteristics, opening a door for studying fundamental physics and facilitating the development of next-generation electronics.