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Here , we report on the vapor - deposited growth of rubrene films on the substrates made of cadmium arachidate ( CdA ) multilayers deposited onto SiO2 / Si ( 100 ) via the Langmuir - Blodgett technique .
 Chemical: rubrene; Chemical: cadmium arachidate; Chemical: CdA; Chemical: SiO2; Chemical: Si
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: rubrene; Chemical: cadmium arachidate; Chemical: CdA; Chemical: SiO2; Chemical: Si