A hemispherical electronic eye camera based on compressible silicon optoelectronics

Heung Cho Ko, Mark P. Stoykovich, Jizhou Song, Viktor Malyarchuk, Won Mook Choi, Chang-Jae Yu, Joseph B. Geddes, Jianliang Xiao, Shuodao Wang, Yonggang Huang () and John A. Rogers ()
Additional contact information
Heung Cho Ko: Department of Materials Science and Engineering,
Mark P. Stoykovich: Department of Materials Science and Engineering,
Jizhou Song: Department of Mechanical Science and Engineering,
Viktor Malyarchuk: Frederick-Seitz Materials Research Laboratory,
Won Mook Choi: Department of Materials Science and Engineering,
Chang-Jae Yu: Department of Materials Science and Engineering,
Joseph B. Geddes: Beckman Institute for Advanced Science and Technology,
Jianliang Xiao: Department of Mechanical Engineering,
Shuodao Wang: Department of Mechanical Engineering,
Yonggang Huang: Department of Mechanical Engineering,
John A. Rogers: Department of Materials Science and Engineering,

Nature, 2008, vol. 454, issue 7205, 748-753

Abstract: Looking Good: An electronic camera that shapes up like a human eye The electronic eye camera shown on the cover is a notable advance in optoelectronics. Even with the latest technologies it is difficult to produce a device to match the feats of imaging achieved by the human eye. Its hemispherical detector provides a wide field of view and low aberrations, using simple, single-component optics. Conventional optoelectronics materials exist only on the planar surfaces of rigid semiconductor wafers and cannot adopt spherical shapes. Now a multidisciplinary team based at the University of Illinois at Urbana-Champaign and Northwestern University, Evanston, has created an electronic eye-like camera based on single-crystalline silicon technology. Two novel fabrication steps make this possible. First, the optoelectronic circuits are ultra-thin in unusual, two-dimensionally compressible configurations; second, specially designed elastomeric elements transfer these planar layouts into hemispherical geometries. In addition to eye-like cameras, these strategies should make it possible to integrate planar device technologies onto the surfaces of complex curvilinear objects, for use in health monitoring devices, 'smart' prosthetics and elsewhere.

Date: 2008
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DOI: 10.1038/nature07113

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