@article {20159,
	title = {r-Shaped hybrid nanogenerator with enhanced piezoelectricity},
	journal = {ACS nano},
	volume = {7},
	year = {2013},
	pages = {8554-8560},
	publisher = {ACS Publications},
	isbn = {1936-0851},
	author = {Han, Mengdi and Zhang, Xiao-Sheng and Meng, Bo and Liu, Wen and Tang, Wei and Sun, Xuming and Wei Wang and Zhang, Haixia}
}
