29628
Active Layer - Incorporated , Spectrally - Tuned Au / SiO2 Core / Shell Nanorod - Based Light Trapping for Organic Photovoltaics .
 Chemical: Au; Chemical: SiO2
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: Au; Chemical: SiO2