Photodetector utilizing quantum dots and perovskite hybrids as light harvesters
US10038156B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Aug 30, 2016 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Aug 30, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/954
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A broad-band photodetector utilizes perovskite hybrid material and quantum dots as light harvesters. In particular, the photodetector is configured so that the structural defects on the surface of a quantum dot layer are passivated with perovskite hybrid material. As a result, the trap states on the surface of the quantum dot material is reduced, allowing leakage currents in the quantum dot material to be significantly reduced. As such, the photodetector is able to achieve broad-band operation, with enhanced photoresponsitivity and detectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.