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    INTERMEDIATE-BAND PHOTOSENSITIVE DEVICE WITH QUANTUM DOTS HAVING TUNNELING BARRIER EMBEDDED IN INORGANIC MATRIX
    3.
    发明申请
    INTERMEDIATE-BAND PHOTOSENSITIVE DEVICE WITH QUANTUM DOTS HAVING TUNNELING BARRIER EMBEDDED IN INORGANIC MATRIX 审中-公开

    公开(公告)号：WO2007120229A3

    公开(公告)日：2007-10-25

    申请号：PCT/US2006/046910

    申请日：2006-12-07

    Applicant: THE TRUSTEES OF PRINCETON UNIVERSITY ,  FORREST, Stephen, R.

    Inventor： FORREST, Stephen, R.

    IPC: H01L31/0352

    Abstract: A plurality of quantum dots comprise a first inorganic material, and each quantum dot is coated with a second inorganic material. The coated quantum dots being are in a matrix of a third inorganic material. At least the first and third materials are photoconductive semiconductors. The second material is arranged as a tunneling barrier to require a charge carrier (an electron or a hole) at a base of the tunneling barrier in the third material to perform quantum mechanical tunneling to reach the first material within a respective quantum dot. A first quantum state in each quantum dot is between a conduction band edge and a valence band edge of the third material in which the coated quantum dots are embedded. Wave functions of the first quantum state of the plurality of quantum dots may overlap to form an intermediate band.

    HIGH MOBILITY HIGH EFFICIENCY ORGANIC FILMS BASED ON PURE ORGANIC MATERIALS
    4.
    发明申请
    HIGH MOBILITY HIGH EFFICIENCY ORGANIC FILMS BASED ON PURE ORGANIC MATERIALS 审中-公开
    基于纯有机材料的高移动性高效有机膜

    公开(公告)号：WO2007041413A1

    公开(公告)日：2007-04-12

    申请号：PCT/US2006/038278

    申请日：2006-09-29

    Applicant: THE TRUSTEES OF PRINCETON UNIVERSITY ,  SALZMAN, Rhonda, F. ,  FORREST, Stephen, R.

    Inventor： SALZMAN, Rhonda, F. ,  FORREST, Stephen, R.

    IPC: H01L51/00

    CPC classification number: H01L51/0025 ,  H01L51/0053 ,  H01L51/0078 ,  H01L51/424 ,  H01L51/4246 ,  H01L51/4253 ,  Y02E10/549 ,  Y10T436/25

    Abstract: A method of purifying small molecule organic material, performed as a series of operations beginning with a first sample of the organic small molecule material. The first step (904) is to purify the organic small molecule material by thermal gradient sublimation. The second step (908) is to test the purity of at least one sample from the purified organic small molecule material by spectroscopy. The third step (910) is to repeat the first through third steps on the purified small molecule material if the spectroscopic testing reveals any peaks exceeding a threshold percentage of a magnitude of a characteristic peak of a target organic small molecule. The steps are performed at least twice. The threshold percentage is at most 10%. Preferably the threshold percentage is 5% and more preferably 2%. The threshold percentage may be selected based on the spectra of past samples that achieved target performance characteristics in finished devices.

    Abstract translation: 纯化小分子有机材料的方法，作为从有机小分子材料的第一样品开始的一系列操作进行。 第一步（904）是通过热梯度升华纯化有机小分子材料。 第二步（908）是通过光谱法从纯化的有机小分子材料中测试至少一种样品的纯度。 第三步骤（910）是重复纯化的小分子材料上的第一至第三步骤，如果光谱测试显示超过目标有机小分子的特征峰值的阈值百分比的峰值。 步骤至少进行两次。 门槛百分比至多为10％。 阈值百分比优选为5％，更优选为2％。 可以基于在成品设备中实现目标性能特征的过去样品的光谱来选择阈值百分比。

    ORGANIC INJECTION LASER
    7.
    发明申请
    ORGANIC INJECTION LASER 审中-公开
    有机注射激光

    公开(公告)号：WO2006068883A1

    公开(公告)日：2006-06-29

    申请号：PCT/US2005/045062

    申请日：2005-12-12

    Applicant: THE TRUSTEES OF PRINCETON UNIVERSITY ,  FORREST, Stephen ,  MENON, Vinod ,  SOOS, Zoltan

    Inventor： FORREST, Stephen ,  MENON, Vinod ,  SOOS, Zoltan

    IPC: H01S5/36 ,  H01S5/34 ,  H01S5/183

    CPC classification number: B82Y20/00 ,  H01S5/18305 ,  H01S5/18358 ,  H01S5/18369 ,  H01S5/3402 ,  H01S5/36

    Abstract: An unipolar organic injection laser in which electrically-stimulated intraband transitions result in lasing. An active region (140) includes at least one organic injector layer (144) and at least one organic emitter layer (142). Each organic emitter layer has a first energy level and a second energy level on a same side of an energy gap defined by a conduction band and a valance band. Charge carriers are injected through the organic injector layer into the first energy level of the organic emitter layer when a voltage is applied across active region. The difference in energy between the first and second energy levels produces radiative emissions when charge carriers transition from the first energy level to the second energy level. Population inversion is maintained between the first and second energy levels, producing stimulated emission and lasing.

    Abstract translation: 单极有机注入激光器，其中电刺激的内部转换导致激光。 有源区（140）包括至少一个有机注入层（144）和至少一个有机发射极层（142）。 每个有机发射极层在由导带和价带限定的能隙的同一侧上具有第一能级和第二能级。 当在有源区域上施加电压时，电荷载体通过有机注入器层注入到有机发射极层的第一能级中。 当电荷载体从第一能级跃迁到第二能量级时，第一和第二能级之间的能量差异产生辐射发射。 在第一和第二能级之间维持人口倒数，产生受激发射和激光。

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