Large area, full-color, digital image sensors made with semiconducting polymers

被引:55
作者
Yu, G [1 ]
Srdanov, G [1 ]
Wang, J [1 ]
Wang, H [1 ]
Cao, Y [1 ]
Heeger, AJ [1 ]
机构
[1] UNIAX, Goleta, CA 93117 USA
基金
美国国家科学基金会;
关键词
semiconducting polymers; optoelectronic devices; full-color image sensors;
D O I
10.1016/S0379-6779(99)00327-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The high performance polymer photovoltaic cells and photodiodes demonstrated recently are of great interests not only for traditional applications but also for large area, digital image sensing. In this presentation, we demonstrate large sensing area, photodiode arrays and matrices made with semiconducting polymers and polymer blends. These photosensors are of high photosensitivity, low dark current, large dynamic range and fast response time. For full-color image sensing applications, large area photosensor arrays were developed to have true-color (24-bits) resolution. The red, green, and blue color primaries were achieved by coupling a set of color filters with the polymer sensor pixels with response to visible light radiation. Image recovery process from the pixel photocurrent data was developed, which is suitable generally to image arrays with power law light intensity dependence and with finite pixel dark current. Large sensing length photodiode arrays (2.5-5 in.) were fabricated in 40-100 dot-per-inch (dpi). They were used as the sensing unit in page-size document scanners. Voltage-switchable polymer photodetectors were developed. Their photosensitivity can be switched on and off with external bias. These devices can be used as the sensing elements in x-y addressable sensor matrices. The high on/off switching ratio and high photocurrent/darkcurrent ratio allow such two-dimensional, passive photosensor matrices to be used for image sensing applications. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:133 / 137
页数:5
相关论文
共 18 条
  • [1] EFFICIENT PHOTODIODES FROM INTERPENETRATING POLYMER NETWORKS
    HALLS, JJM
    WALSH, CA
    GREENHAM, NC
    MARSEGLIA, EA
    FRIEND, RH
    MORATTI, SC
    HOLMES, AB
    [J]. NATURE, 1995, 376 (6540) : 498 - 500
  • [2] SENSITIZATION OF THE PHOTOCONDUCTIVITY OF CONDUCTING POLYMERS BY C-60 - PHOTOINDUCED ELECTRON-TRANSFER
    LEE, CH
    YU, G
    MOSES, D
    PAKBAZ, K
    ZHANG, C
    SARICIFTCI, NS
    HEEGER, AJ
    WUDL, F
    [J]. PHYSICAL REVIEW B, 1993, 48 (20): : 15425 - 15433
  • [3] Sariciftci N.S., 1995, U.S. Patent, Patent No. [5,454,880, 5454880]
  • [4] PHOTOINDUCED ELECTRON-TRANSFER FROM A CONDUCTING POLYMER TO BUCKMINSTERFULLERENE
    SARICIFTCI, NS
    SMILOWITZ, L
    HEEGER, AJ
    WUDL, F
    [J]. SCIENCE, 1992, 258 (5087) : 1474 - 1476
  • [5] SEMICONDUCTING POLYMER-BUCKMINSTERFULLERENE HETEROJUNCTIONS - DIODES, PHOTODIODES, AND PHOTOVOLTAIC CELLS
    SARICIFTCI, NS
    BRAUN, D
    ZHANG, C
    SRDANOV, VI
    HEEGER, AJ
    STUCKY, G
    WUDL, F
    [J]. APPLIED PHYSICS LETTERS, 1993, 62 (06) : 585 - 587
  • [6] REVERSIBLE, METASTABLE, ULTRAFAST PHOTOINDUCED ELECTRON-TRANSFER FROM SEMICONDUCTING POLYMERS TO BUCKMINSTERFULLERENE AND IN THE CORRESPONDING DONOR-ACCEPTOR HETEROJUNCTIONS
    SARICIFTCI, NS
    HEEGER, AJ
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1994, 8 (03): : 237 - 274
  • [7] SARICIFTCI NS, 1994, Patent No. 5333183
  • [8] WANG J, UNPUB SOLID STATE EL
  • [9] Yu G, 1998, ADV MATER, V10, P1431, DOI 10.1002/(SICI)1521-4095(199812)10:17<1431::AID-ADMA1431>3.0.CO
  • [10] 2-4