Photocell device having responsivity amplifying structure
AssigneePipal Technology Corporation
InventorWei-Chung Chang
Life of this patent
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Abstract
The present invention discloses a photocell device with a responsivity amplifying structure, comprising: a partially reflective filter layer that transmits light within a specific wavelength range and reflects other wavelengths; a gain layer that interacts with photons to alter their wavelength; and an optoelectronic reaction layer. The gain layer is positioned between the partially reflective filter layer and the reaction layer. Photons interacting with the gain layer either enter the reaction layer for conversion or are reflected back for interacting with the gain layer again and then entering the reaction layer for conversion. In another embodiment, an additional reflective filter is placed between the gain layer and the optoelectronic reaction layer.
Claims8
A photocell device having a responsivity amplifying structure, comprising:
- a first partially reflective filter layer configured to transmit light within a specific wavelength range and reflect light outside the specific wavelength range;
- a gain layer, which is configured to interact with photons to alter the wavelength of the photons;
- a second partially reflective filter layer configured to reflect light within the specific wavelength range and transmit light outside the specific wavelength range;
- and
- an optoelectronic reaction layer;
- wherein the gain layer is located between the first and second partially reflective filter layers, and the second partially reflective filter layer is located between the gain layer and the optoelectronic reaction layer;
- wherein when a photon passes through the first partially reflective filter layer and enters the gain layer, it interacts with the gain layer to generate one or more photons of a different wavelength that enter the optoelectronic reaction layer for optoelectronic conversion;
- when a photon passes through the first partially reflective filter layer and enters the gain layer, it can be reflected by the second partially reflective filter layer and re-enter the gain layer to interact with it, generating one or more photons of a different wavelength that enter the optoelectronic reaction layer for optoelectronic conversion.
Dependencies are inferred from the claim text.