12878
Cu ( In , Ga ) ( S , Se ) 2 ( CIGSSe ) thin film solar cells incorporating this composite electrode exhibited a 20 % increase of the power conversion efficiency compared to a conventional sputtered indium tin oxide - based CIGSSe solar cell .
 Chemical: Cu ( In , Ga ) ( S , Se ) 2; Chemical: CIGSSe; Chemical: oxide; Chemical: CIGSSe
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: Cu ( In , Ga ) ( S , Se ) 2, CIGSSe, oxide, CIGSSe 
Answer:
 Chemical: Cu ( In , Ga ) ( S , Se ) 2; Chemical: CIGSSe; Chemical: oxide; Chemical: CIGSSe