公开(公告)号：US11094902B2

公开(公告)日：2021-08-17

申请号：US15030152

申请日：2014-10-27

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Xiaozhou Che ,  Xin Xiao

IPC: H01L51/42 ,  H01L51/44 ,  H01L51/00 ,  H01L27/30

Abstract: A high efficiency small molecule tandem solar cell is disclosed. The tandem cell may include a first subcell comprising a first photoactive region and a second subcell comprising a second photoactive region. The first and second photoactive regions are designed to minimize spectral overlap and maximize photocurrent. The device may further include an interconnecting layer, disposed between the first subcell and the second subcell, that is at least substantially transparent.

公开(公告)号：US11145834B2

公开(公告)日：2021-10-12

申请号：US15111249

申请日：2015-01-15

Applicant: The Regents of the University of Michigan

Inventor： Stephen R. Forrest ,  Xiaozhou Che ,  Xin Xiao

IPC: H01L51/42 ,  H01L51/00 ,  H01G9/20

Abstract: High efficiency multi-junction small-molecule organic photovoltaic devices and methods of fabricating the same are disclosed herein. Design considerations for improving spectral coverage and light-harvesting efficiency using the multi-junction devices are also disclosed.

公开(公告)号：US20190259971A1

公开(公告)日：2019-08-22

申请号：US16119549

申请日：2018-08-31

Applicant: The Regents of the University of Michigan ,  University of Southern California

Inventor： Stephen R. Forrest ,  Xin Xiao ,  Jeramy D. Zimmerman ,  Kevin Bergemann ,  Anurag Panda ,  Brian E. Lassiter ,  Mark E. Thompson ,  Andrew N. Bartynski ,  Cong Trinh

IPC: H01L51/42 ,  B82Y10/00

Abstract: Disclosed herein are organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

公开(公告)号：US10276817B2

公开(公告)日：2019-04-30

申请号：US14803643

申请日：2015-07-20

Applicant: The Regents of the University of Michigan ,  University of Southern California

Inventor： Stephen R. Forrest ,  Quinn Burlingame ,  Xin Xiao ,  Kevin Bergemann ,  Anurag Panda ,  Jeramy D. Zimmerman ,  Brian E. Lassiter ,  Mark E. Thompson ,  Andrew N. Bartynski ,  Cong Trinh

IPC: H01L51/42 ,  H01L51/44 ,  H01L51/00

Abstract: Disclosed herein are stable organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material having a sufficiently high glass transition temperature, e.g., higher than the temperature or temperature range at which the device typically operates, higher than a highest operating temperature of the device, higher than a threshold temperature value, etc. and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

公开(公告)号：US11944007B2

公开(公告)日：2024-03-26

申请号：US16449881

申请日：2019-06-24

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN ,  UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Mark E. Thompson ,  Stephen R. Forrest ,  Guodan Wei ,  Siyi Wang ,  Lincoln Hall ,  Viacheslav V. Diev ,  Xin Xiao

IPC: C09B57/00 ,  B82Y10/00 ,  C09K11/06 ,  H01G9/20 ,  H10K85/60 ,  H10K30/20 ,  H10K85/20

CPC classification number: H10K85/6572 ,  B82Y10/00 ,  C09B57/007 ,  C09B57/008 ,  C09K11/06 ,  H01G9/2059 ,  H10K85/631 ,  H10K85/633 ,  H10K85/657 ,  C07C2601/04 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1029 ,  H10K30/211 ,  H10K85/211 ,  H10K85/626 ,  Y02E10/549

Abstract: There is disclosed squaraine compounds of formula I:




wherein each of Y1 and Y2 is independently chosen from an optionally substituted amino group and an optionally substituted aryl group. Also described are organic optoelectronic devices comprising a Donor-Acceptor heterojunction that is formed from one or more of the squaraine compounds. A method of making the disclosed device, which may include one or more sublimation step for depositing said squaraine compound, is also disclosed.

公开(公告)号：US11251386B2

公开(公告)日：2022-02-15

申请号：US15125690

申请日：2015-04-06

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Xiaozhou Che ,  Xin Xiao ,  Stephen R. Forrest

IPC: H01L51/42 ,  H01L51/00

Abstract: A highly efficient multi junction photovoltaic device, such as a two, three, or four junction device, is disclosed. The multi-junction device may include a first subcell comprising a first photoactive region and a second subcell comprising a second photoactive region. The first and second photoactive regions are designed to minimize spectral overlap and maximize photocurrent across a broad absorption spectra, such as wavelengths ranging from 400 nm to 900 nm. The device may further include an inter-connecting layer, disposed between the first subcell and the second subcell, that is at least substantially transparent. By introducing a transparent interconnecting layer, a dual element (tandem) cell achieves a power conversion efficiency of 10.0±0.5%. By adding an additional (3rd) sub-cell that absorbs at the second order optical interference maximum within the stack. The triple junction cell significantly improves the quantum efficiency at shorter wavelengths, achieving a power conversion efficiency of 11.1±0.5%. Adding additional sub-cells has been shown to increase power conversion efficiency above 12%.

公开(公告)号：US10141531B2

公开(公告)日：2018-11-27

申请号：US14647601

申请日：2013-11-27

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Stephen R. Forrest ,  Jeramy D. Zimmerman ,  Brian E. Lassiter ,  Xin Xiao

IPC: H01L31/00 ,  H01L51/42 ,  B82Y10/00 ,  H01L51/00

Abstract: Disclosed herein are organic photosensitive optoelectronic devices comprising at least one hybrid planar-graded heterojunction. In particular, organic photosensitive optoelectronic devices are disclosed having two electrodes (110), (150) in superposed relation, a graded heterojunction layer (130) located between the two electrodes, and at least one photoactive layer (120), (140) adjacent to and interfacing with the graded heterojunction layer.

公开(公告)号：US09847487B2

公开(公告)日：2017-12-19

申请号：US14646136

申请日：2013-11-22

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Stephen R. Forrest ,  Jeramy D. Zimmerman ,  Brian E Lassiter ,  Xin Xiao

IPC: H01L51/00 ,  H01L51/42 ,  B82Y10/00

CPC classification number: H01L51/0026 ,  B82Y10/00 ,  H01L51/0003 ,  H01L51/001 ,  H01L51/0028 ,  H01L51/0046 ,  H01L51/0053 ,  H01L51/0059 ,  H01L51/0062 ,  H01L51/4253 ,  Y02E10/549

Abstract: Disclosed herein are methods for fabricating an organic photovoltaic device comprising depositing an amorphous organic layer and a crystalline organic layer over a first electrode, wherein the amorphous organic layer and the crystalline organic layer contact one another at an interface; annealing the amorphous organic layer and the crystalline organic layer for a time sufficient to induce at least partial crystallinity in the amorphous organic layer; and depositing a second electrode over the amorphous organic layer and the crystalline organic layer. In the methods and devices herein, the amorphous organic layer may comprise at least one material that undergoes inverse-quasi epitaxial (IQE) alignment to a material of the crystalline organic layer as a result of the annealing.

公开(公告)号：US20160343966A1

公开(公告)日：2016-11-24

申请号：US15111249

申请日：2015-01-15

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Stephen R. Forrest ,  Xiaozhou Che ,  Xin Xiao

IPC: H01L51/42 ,  H01G9/20 ,  H01L51/00

CPC classification number: H01L51/4246 ,  H01G9/2059 ,  H01L51/001 ,  H01L51/0046 ,  H01L51/0056 ,  H01L51/0061 ,  H01L51/0069 ,  Y02E10/549

Abstract: High efficiency multi-junction small-molecule organic photovoltaic devices and methods of fabricating the same are disclosed herein. Design considerations for improving spectral coverage and light-harvesting efficiency using the multi-junction devices are also disclosed.

Abstract translation: 本文公开了高效率多结小分子有机光伏器件及其制造方法。 还公开了使用多结装置提高光谱覆盖和光收获效率的设计考虑。

公开(公告)号：US20160056398A1

公开(公告)日：2016-02-25

申请号：US14782798

申请日：2014-04-14

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN ,  UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Stephen R. Forrest ,  Xin Xiao ,  Jeramy D. Zimmerman ,  Kevin Bergemann ,  Anurag Panda ,  Brian E. Lassiter ,  Mark E. Thompson ,  Andrew N. Bartynski ,  Cong Trinh

IPC: H01L51/42

CPC classification number: H01L51/4273 ,  B82Y10/00 ,  H01L51/0046 ,  H01L51/0047 ,  H01L51/0053 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0072 ,  Y02E10/549

Abstract: Disclosed herein are organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).

Abstract translation: 本文公开了包括至少一个激子阻断电荷载流子过滤器的有机光敏器件。 过滤器包括至少一个宽能隙材料和至少一个电子或空穴传导材料的混合物。 如本文所述，新型滤光器同时阻挡激子并传导所需的电荷载体（电子或空穴）。