26346
Via the integration of nanocomposites comprising I - III - VI semiconductor quantum dots ( QDs ) decorated onto a single SnO2 nanowire ( NW ) , we successfully fabricate an ultrahigh - sensitivity and wide spectral - response photodetector .
 SnO2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 SnO2