Giant infrared bulk photovoltaic effect in tellurene for broad-spectrum neuromodulation.

ABSTRACT: Given the surpassing of the Shockley-Quiesser efficiency limit in conventional p-n junction photovoltaic effect, bulk photovoltaic effect (BPVE) has garnered significant research interest. However, the BPVE primarily focuses on a narrow wavelength range, limiting its potential applications. Here we report a giant infrared bulk photovoltaic effect in tellurene (Te) for broad-spectrum neuromodulation. The generated photocurrent in uniformly illuminated Te excludes other photoelectric effects and is attributed to the BPVE. The bulk photovoltaic wavelength in Te spans a wide range from the ultraviolet (390 nm) to the mid-infrared (3.8 µm). Moreover, the photocurrent density of 70.4 A cm^-2 under infrared light simulation outperforms that in previous ultraviolet and visible semiconduc

SUBMITTER: Wang Z 

PROVIDER: S-EPMC11427709 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature