Optoelectronic component with organic and inorganic phosphors and lighting apparatus
An optoelectronic component and a lighting apparatus are disclosed. In an embodiment an optoelectronic component includes a carrier having an upper side and an underside opposite the upper side, an optoelectronic semiconductor chip arranged on the upper side of the carrier, the semiconductor chip configured to emit primary radiation during operation via one or more sides. The component further includes a first conversion layer having an inorganic phosphor on the semiconductor chip, the first conversion layer covering at least all radiation-emitting sides of the semiconductor chip not facing the carrier and a solid body in which an organic phosphor is distributed, wherein the solid body is arranged and fastened on the carrier and is at least in indirect contact with the carrier, and wherein the solid body is spaced from the radiation-emitting sides of the semiconductor chip at least by the first conversion layer and/or by the carrier.
1. An optoelectronic component comprising:
a carrier having an upper side and an underside opposite the upper side;
an optoelectronic semiconductor chip arranged on the upper side of the carrier, the semiconductor chip configured to emit primary radiation during operation via one or more sides;
a first conversion layer having an inorganic phosphor on the semiconductor chip, the first conversion layer covering at least all radiation-emitting sides of the semiconductor chip not facing the carrier; and
a solid body in which an organic phosphor is distributed,
wherein the solid body is arranged and fastened on the carrier and is at least in indirect contact with the carrier,
wherein the solid body is spaced from the radiation-emitting sides of the semiconductor chip at least by the first conversion layer and/or by the carrier, and
wherein a volume portion of the solid body is larger than a sum of volume portions of the semiconductor chip, the first conversion layer and the carrier for an entire volume of the optoelectronic component.
2. The optoelectronic component according to claim 1 ,
wherein the solid body is not in direct contact with the semiconductor chip, and
wherein the optoelectronic component is configured such that, during the operation, the primary radiation emitted by the semiconductor chip passes always first through the first conversion layer or the carrier in order to reach the solid body.
3. The optoelectronic component according to claim 1 , wherein the first conversion layer is free of the organic phosphor of the solid body within a manufacturing tolerance.
4. The optoelectronic component according to claim 1 , wherein the solid body is arranged on the upper side of the carrier, and wherein the semiconductor chip and the first conversion layer are embedded in the solid body.
5. The optoelectronic component according to claim 1 , wherein the solid body is arranged on the underside of the carrier.
6. The optoelectronic component according to claim 1 ,
wherein the carrier is translucent to visible light,
wherein the carrier is self-supporting and carries the semiconductor chip, and
wherein the primary radiation and/or secondary radiation generated by conversion of the primary radiation enters the carrier via the upper side and exits the carrier at the underside during the operation of the optoelectronic component.
7. The optoelectronic component according to claim 1 , wherein an outer side of the solid body facing away from the carrier is convexly curved.
8. The optoelectronic component according to claim 1 , wherein the solid body completely covers the upper side and/or the underside of the carrier.
9. The optoelectronic component according to claim 1 , wherein the semiconductor chip, the first conversion layer and the carrier are embedded in the solid body.
10. The optoelectronic component according to claim 1 ,
wherein the semiconductor chip is configured to generate the primary radiation with an intensity maximum at a first wavelength during the operation,
wherein the inorganic phosphor of the first conversion layer is configured to convert the primary radiation into secondary radiation having an intensity maximum at a second wavelength, the second wavelength being greater than the first wavelength, and
wherein the organic phosphor of the solid body is configured to convert the primary radiation and/or the secondary radiation into tertiary radiation having an intensity maximum at a third wavelength, the third wavelength being greater than the second wavelength.
11. The optoelectronic component according to claim 1 , wherein the optoelectronic component comprises a plurality of semiconductor chips lined up along a line on the upper side of the carrier.
12. The optoelectronic component according to claim 1 , wherein one or more optoelectronic semiconductor chips are arranged on the underside of the carrier.
13. The optoelectronic component according to claim 1 , further comprising a second conversion layer comprising an inorganic phosphor, wherein the second conversion layer is disposed between the semiconductor chip and the carrier and/or on the underside of the carrier.
14. A lighting apparatus comprising:
a plurality of the optoelectronic components according to claim 1 ,
wherein the optoelectronic components are arranged with respect to one another such that undersides of the carriers face one another or upper sides of the carriers face one another.
15. An optoelectronic component comprising:
a carrier having an upper side and an underside opposite the upper side, the carrier being translucent to visible light and self-supporting;
an optoelectronic semiconductor chip arranged on the upper side of the carrier, the semiconductor chip configured to emit primary radiation during operation via one or more sides, wherein the carrier carries the semiconductor chip;
a first conversion layer having an inorganic phosphor on the semiconductor chip, the first conversion layer covering at least all radiation-emitting sides of the semiconductor chip not facing the carrier; and
a solid body in which an organic phosphor is distributed,
wherein the solid body is arranged and fastened on the carrier and is at least in indirect contact with the carrier,
wherein the solid body is spaced from the radiation-emitting sides of the semiconductor chip at least by the first conversion layer and/or by the carrier, and
wherein the primary radiation and/or secondary radiation generated by conversion of the primary radiation enters the carrier via the upper side and exits the carrier at the underside during the operation of the optoelectronic component.
16. The optoelectronic component according to claim 15 , wherein the optoelectronic component comprises a plurality of semiconductor chips lined up along a line on the upper side of the carrier.
17. The optoelectronic component according to claim 15 , wherein one or more optoelectronic semiconductor chips are arranged on the underside of the carrier.
18. The optoelectronic component according to claim 15 , wherein a volume portion of the solid body is larger than a sum of the volume fractions portions of the semiconductor chip, the first conversion layer and the carrier for an entire volume of the optoelectronic component.
19. The optoelectronic component according to claim 15 ,
wherein the semiconductor chip is configured to generate the primary radiation with an intensity maximum at a first wavelength during the operation,
wherein the inorganic phosphor of the first conversion layer is configured to convert the primary radiation into the secondary radiation having an intensity maximum at a second wavelength, the second wavelength being greater than the first wavelength, and
wherein the organic phosphor of the solid body is configured to convert the primary radiation and/or the secondary radiation into tertiary radiation having an intensity maximum at a third wavelength, the third wavelength being greater than the second wavelength.
20. The optoelectronic component according to claim 19 , wherein the optoelectronic component comprises a plurality of semiconductor chips lined up along a line on the upper side of the carrier.