公开(公告)号：US20220085254A1

公开(公告)日：2022-03-17

申请号：US17523828

申请日：2021-11-10

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Juanita Kurtin ,  Brian Theobald ,  Matthew J. Carillo ,  Oun-Ho Park ,  Georgeta Masson ,  Steven M. Hughes

IPC: H01L33/50 ,  C09K11/02 ,  C09K11/56 ,  C09K11/88 ,  C01B19/00 ,  B82Y30/00 ,  H01L33/00 ,  H01L33/06 ,  H01L33/56

Abstract: Semiconductor structures having a nanocrystalline core and corresponding nanocrystalline shell and insulator coating, wherein the semiconductor structure includes an anisotropic nanocrystalline core composed of a first semiconductor material, and an anisotropic nanocrystalline shell composed of a second, different, semiconductor material surrounding the anisotropic nanocrystalline core. The anisotropic nanocrystalline core and the anisotropic nanocrystalline shell form a quantum dot. An insulator layer encapsulates the nanocrystalline shell and anisotropic nanocrystalline core.

公开(公告)号：US20210242358A1

公开(公告)日：2021-08-05

申请号：US17035398

申请日：2020-09-28

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Juanita N. Kurtin ,  Steven M. Hughes ,  Alex C. Mayer ,  Oun-Ho Park ,  Georgeta Masson

IPC: H01L31/055 ,  C09K11/56 ,  C09K11/02

Abstract: The light conversion efficiency of a solar cell (10) is enhanced by using an optical downshifting layer (30) in cooperation with a photovoltaic material (22). The optical downshifting layer converts photons (50) having wavelengths in a supplemental light absorption spectrum into photons (52) having a wavelength in the primary light absorption spectrum of the photovoltaic material. The cost effectiveness and efficiency of solar cells platforms (20) can be increased by relaxing the range of the primary light absorption spectrum of the photovoltaic material. The optical downshifting layer can be applied as a low cost solution processed film composed of highly absorbing and emissive quantum dot heterostructure nanomaterial embedded in an inert matrix to improve the short wavelength response of the photovoltaic material. The enhanced efficiency provided by the optical downshifting layer permits advantageous modifications to the solar cell platform that enhances its efficiency as well.

公开(公告)号：US11495703B2

公开(公告)日：2022-11-08

申请号：US17035398

申请日：2020-09-28

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Juanita N. Kurtin ,  Steven M. Hughes ,  Alex C. Mayer ,  Oun-Ho Park ,  Georgeta Masson

IPC: H01L31/055 ,  C09K11/56 ,  C09K11/02

Abstract: The light conversion efficiency of a solar cell is enhanced by using an optical downshifting layer in cooperation with a photovoltaic material. The optical downshifting layer converts photons having wavelengths in a supplemental light absorption spectrum into photons having a wavelength in the primary light absorption spectrum of the photovoltaic materiaL The cost effectiveness and efficiency of solar cells platforms can be increased by relaxing the range of the primary light absorption spectrum of the photovoltaic materiaL The optical downshifting layer can be applied as a low cost solution processed film composed of highly absorbing and emissive quantum dot heterostructure nanomaterial embedded in an inert matrix to improve the short wavelength response to the photovoltaic materiaL The enhanced efficiency provided by the optical downshifting layer permits advantageous modifications to the solar cell platform that enhances its efficiency as well.

公开(公告)号：US12107197B2

公开(公告)日：2024-10-01

申请号：US17523828

申请日：2021-11-10

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Juanita Kurtin ,  Brian Theobald ,  Matthew J. Carillo ,  Oun-Ho Park ,  Georgeta Masson ,  Steven M. Hughes

IPC: H01L33/50 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B19/00 ,  C09K11/02 ,  C09K11/56 ,  C09K11/88 ,  H01L33/00 ,  H01L33/06 ,  H01L33/56

CPC classification number: H01L33/502 ,  B82Y30/00 ,  C01B19/007 ,  C09K11/02 ,  C09K11/025 ,  C09K11/565 ,  C09K11/883 ,  H01L33/005 ,  H01L33/06 ,  H01L33/56 ,  B82Y20/00 ,  B82Y40/00 ,  C01P2002/84 ,  C01P2004/04 ,  C01P2004/10 ,  C01P2004/54 ,  C01P2004/64 ,  C01P2004/80 ,  H01L2933/0033 ,  H01L2933/0041 ,  H01L2933/005 ,  H01L2933/0083 ,  Y10S977/744 ,  Y10S977/774 ,  Y10S977/824 ,  Y10S977/89 ,  Y10S977/95

Abstract: Semiconductor structures having a nanocrystalline core and corresponding nanocrystalline shell and insulator coating, wherein the semiconductor structure includes an anisotropic nanocrystalline core composed of a first semiconductor material, and an anisotropic nanocrystalline shell composed of a second, different, semiconductor material surrounding the anisotropic nanocrystalline core. The anisotropic nanocrystalline core and the anisotropic nanocrystalline shell form a quantum dot. An insulator layer encapsulates the nanocrystalline shell and anisotropic nanocrystalline core.

公开(公告)号：US20190144743A1

公开(公告)日：2019-05-16

申请号：US16230995

申请日：2018-12-21

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Georgeta Masson ,  Kari N. Haley ,  Brian Theobald ,  Benjamin Daniel Mangum ,  Juanita N. Kurtin

IPC: C09K11/02 ,  C08K3/10 ,  C08K9/10 ,  C09K11/08 ,  B82Y30/00 ,  B82Y40/00

Abstract: Quantum dot delivery methods are described. In a first example, a method of delivering or storing a plurality of nano-particles involves providing a plurality of nano-particles. The method also involves forming a dispersion of the plurality of nano-particles in a medium for delivery or storage, wherein the medium is free of organic solvent. In a second example, a method of delivering or storing a plurality of nano-particles involves providing a plurality of nano-particles in an organic solvent. The method also involves drying the plurality of nano-particles for delivery or storage, the drying removing entirely all of the organic solvent.

公开(公告)号：US20180342652A1

公开(公告)日：2018-11-29

申请号：US16052515

申请日：2018-08-01

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Juanita Kurtin ,  Brian Theobald ,  Matthew J. Carillo ,  Oun-Ho Park ,  Georgeta Masson ,  Steven M. Hughes

IPC: H01L33/50 ,  C09K11/88 ,  B82Y30/00 ,  C01B19/00 ,  C09K11/02 ,  C09K11/56 ,  H01L33/00 ,  H01L33/06 ,  H01L33/56 ,  B82Y20/00 ,  B82Y40/00

Abstract: Semiconductor structures having a nanocrystalline core and corresponding nanocrystalline shell and insulator coating, wherein the semiconductor structure includes an anisotropic nanocrystalline core composed of a first semiconductor material, and an anisotropic nanocrystalline shell composed of a second, different, semiconductor material surrounding the anisotropic nanocrystalline core. The anisotropic nanocrystalline core and the anisotropic nanocrystalline shell form a quantum dot. An insulator layer encapsulates the nanocrystalline shell and anisotropic nanocrystalline core.

公开(公告)号：US11205741B2

公开(公告)日：2021-12-21

申请号：US16052515

申请日：2018-08-01

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Juanita Kurtin ,  Brian Theobald ,  Matthew J. Carillo ,  Oun-Ho Park ,  Georgeta Masson ,  Steven M. Hughes

IPC: H01L33/50 ,  C09K11/02 ,  C09K11/56 ,  C09K11/88 ,  C01B19/00 ,  B82Y30/00 ,  H01L33/00 ,  H01L33/06 ,  H01L33/56 ,  B82Y40/00 ,  B82Y20/00

Abstract: Semiconductor structures having a nanocrystalline core and corresponding nanocrystalline shell and insulator coating, wherein the semiconductor structure includes an anisotropic nanocrystalline core composed of a first semiconductor material, and an anisotropic nanocrystalline shell composed of a second, different, semiconductor material surrounding the anisotropic nanocrystalline core. The anisotropic nanocrystalline core and the anisotropic nanocrystalline shell form a quantum dot. An insulator layer encapsulates the nanocrystalline shell and anisotropic nanocrystalline core.

公开(公告)号：US11053435B2

公开(公告)日：2021-07-06

申请号：US16230995

申请日：2018-12-21

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Georgeta Masson ,  Kari N. Haley ,  Brian Theobald ,  Benjamin Daniel Mangum ,  Juanita N. Kurtin

IPC: C09K11/02 ,  C08K3/10 ,  C08K9/10 ,  C09K11/08 ,  H01L33/50 ,  B82Y40/00 ,  B82Y30/00

Abstract: Quantum dot delivery methods are described. In a first example, a method of delivering or storing a plurality of nano-particles involves providing a plurality of nano-particles. The method also involves forming a dispersion of the plurality of nano-particles in a medium for delivery or storage, wherein the medium is free of organic solvent. In a second example, a method of delivering or storing a plurality of nano-particles involves providing a plurality of nano-particles in an organic solvent. The method also involves drying the plurality of nano-particles for delivery or storage, the drying removing entirely all of the organic solvent.

公开(公告)号：US10396228B2

公开(公告)日：2019-08-27

申请号：US15369752

申请日：2016-12-05

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Alex C. Mayer ,  Shawn R. Scully ,  Juanita N. Kurtin ,  Alex R. Guichard ,  Steven M. Hughes ,  Oun-Ho Park ,  Paul-Emile B. Trudeau ,  Colin C. Reese ,  Manav Sheoran ,  Georgeta Masson

IPC: H01L31/05 ,  H01L31/054 ,  H01L31/055 ,  H01L31/056

Abstract: A solar concentrator module (80) employs a luminescent concentrator material (82) between photovoltaic cells (86) having their charge-carrier separation junctions (90) parallel to front surfaces (88) of photovoltaic material 84 of the photovoltaic cells (86). Intercell areas (78) covered by the luminescent concentrator material (82) occupy from 2 to 50% of the total surface area of the solar concentrator modules (80). The luminescent concentrator material (82) preferably employs quantum dot heterostructures, and the photovoltaic cells (86) preferably employ low-cost high-efficiency photovoltaic materials (84), such as silicon-based photovoltaic materials.