27466
Few - layered MoS2 as Schottky metal - semiconductor - metal photodetectors ( MSM PDs ) for use in harsh environments makes its debut as two - dimensional ( 2D ) optoelectronics with high broadband gain ( up to 13 . 3 ) , high detectivity ( up to ~ 10 ( 10 ) cm Hz ( 1 / 2 ) / W ) , fast photoresponse ( rise time of ~ 70 mu s and fall time of ~ 110 mu s ) , and high thermal stability ( at a working temperature of up to 200 degrees C ) .
 Chemical: MoS2
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: MoS2 
Answer:
 Chemical: MoS2