1303.2391 (Qin Zhou et al.)

Electrostatic Graphene Loudspeaker    [PDF]

Qin Zhou, A. Zettl

Graphene has extremely low mass density and high mechanical strength, key qualities for efficient wide-frequency-response electrostatic audio speaker design. Low mass ensures good high frequency response, while high strength allows for relatively large free-standing diaphragms necessary for effective low frequency response. Here we report on construction and testing of a miniaturized graphene-based electrostatic audio transducer. The speaker/earphone is straightforward in design and operation and has excellent frequency response across the entire audio frequency range (20HZ - 20kHz), with performance matching or surpassing commercially available audio earphones.

View original: http://arxiv.org/abs/1303.2391