Piezotransistive transduction of femtoscale displacement for photoacoustic spectroscopy.

It is quite significant to note that the displacement responsivities of both devices (1.43 and 1.3 nV fm −1 ) are ∼30 times higher than that previously demonstrated using a nanocantilever (0.04 nV fm −1 ) 2 , while the noise-limited resolutions at 1 Hz bandwidth (60.14 and 105.2 fm) are very comparable to the nanocantilever (39 fm) 2 and almost 4 orders higher than similar sized microcantilevers (0.5 nm Hz −1/2 ) 2 with comparable f 0 .

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