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On the basis of a vertically aligned ultralong Pb ( Zr ( 0 . 52 ) Ti ( 0 . 48 ) ) O ( 3 ) ( PZT ) nanowire array fabricated using electrospinning nanofibers , we developed a new type of integrated nanogenerator ( NG ) with ultrahigh output voltage of 209 V and current density of 23 . 5 mu A / cm ( 2 ) , which are 3 . 6 times and 2 . 9 times of the previous record values , respectively .
 Chemical: Pb ( Zr ( 0 . 52 ) Ti ( 0 . 48 ) ) O ( 3 ); Chemical: PZT
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: Pb ( Zr ( 0 . 52 ) Ti ( 0 . 48 ) ) O ( 3 ); Chemical: PZT