Photoconversion device with enhanced photon absorption
US8507890B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Jan 26, 2012 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Jan 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/547
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An infrared photoconversion device comprising a collector with at least an active layer made of a single sheet of doped single-layer, bilayer, or multilayer graphene patterned as nanodisks or nanoribbons. The single sheet of doped graphene presents high absorbance and thus, the efficiency of devices such as photovoltaic cells, photodetectors, and light emission devices can be improved by using graphene as the central absorbing or emitting element. These devices become tunable because their peak absorption or emission wavelength is changed via electrostatic doping of the graphene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.