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High bandwidth graphene photodetector with ultrafast, high efficiency performance

總結

While graphene photodetectors offer great potential as next generation devices over current semiconductor based photodetectors, graphene's low optical absorption results in low efficiency photodetection. This technology resolves the issue of graphene's low optical absorption by integrating a graphene photodetector onto a silicon waveguide, which improves optical absorption and photoresponsivity. This photodetector maintains all of the advantages of graphene-based devices, such as high bandwidth detection abilities and ultrafast carrier dynamics.

技術優勢

Ultrafast photodetectionBroad spectral absorption range Enhanced light absorption from graphene Enhanced photoresponsivityImproved photocurrent at zero bias (no added noise)Spectral resolutionEnhanced photoresponsivityPatent Information:Patent Pending (WO/2013/148349)Tech Ventures Reference: IR CU13139

技術應用

Photodetectors for integrated optoelectronicsPhotodiodesBioimaging devicesBiosensing devices

詳細技術說明

None

*Abstract

None

*Inquiry

Teresa FazioColumbia Technology VenturesTel: (212) 854-8444Email: TechTransfer@columbia.edu

*IR

CU13139

*Principal Investigation

*Publications

Gan, X., Shiue, R.J.S., Gao, Y., Meric, I., Heinz, T.F., Shepard, K., Hone, J., Assefa, S., Englund, D. “Chip-integrated ultrafast graphene photodetector with high responsivity” Nature Photonics. 2013 September 15;7:883-887.

國家/地區

美國