Power Factor Enhancement by Modulation Doping in Bulk Nanocomposites Zebarjadi, Mona ; Joshi, Giri ; Zhu, Gaohua ; Yu, Bo ; Minnich, Austin ; Lan, Yucheng ; Wang, Xiaowei ; Dresselhaus, Mildred ; Ren, Zhifeng ; Chen, Gang Abstract Publication: Nano Letters Pub Date: June 2011 DOI: 10.1021/nl201206d Bibcode: 2011NanoL..11.2225Z