Characteristics of output voltage and current of integrated nanogenerators

Rusen Yang, Yong Qin, Cheng Li, Liming Dai, Zhong Lin Wang

Research output: Contribution to journalArticlepeer-review

135 Scopus citations


Owing to the anisotropic property and small output signals of the piezoelectric nanogenerators (NGs) and the influence of the measurement system and environment, identification of the true signal generated by the NG is critical. We have developed three criteria: Schottky behavior test, switching-polarity tests, and linear superposition of current and voltage tests. The 11 tests can effectively rule out the system artifacts, whose sign does not change with the switching measurement polarity, and random signals, which might change signs but cannot consistently add up or cancel out under designed connection configurations. This study establishes the standards for designing and scale up of integrated nanogenerators.

Original languageEnglish (US)
Article number022905
JournalApplied Physics Letters
Issue number2
StatePublished - 2009

Bibliographical note

Funding Information:
This research was supported by DARPA (Army/AMCOM/REDSTONE AR, Grant No. W31P4Q-08-1-0009), BES DOE (Grant No. DE-FG02-07ER46394), Air Force Office (Grant No. FA9550-08-1-0446), KAUST Global Research Partnership, National Institute For Materials, Japan.


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