23282
Broadband Light - Trapping Enhancement in an Ultrathin Film a - Si Absorber Using Whispering Gallery Modes and Guided Wave Modes with Dielectric Surface - Textured Structures .
 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: Si