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Rogers, John A. Rogers, John A. Braun, Paul V. Li, Xiuling Dillon, Shen J. Kim, Rak Hwan 2012-09-18T21:17:53Z 2012-09-18T21:17:53Z 2014-09-18T10:00:50Z 2012-08 2012-09-18T21:17:53Z 2012-08 Flexible electronics can offer various advantages such as intimate, conformal contacts to curvilinear surfaces and a high level of tolerance to an external strain over the conventional devices integrated on rigid platforms. With suitable choices of materials, design, and integrating strategies, inorganic semiconductor materials can be utilized as active components, integrated with flexible platforms. The deterministic transfer printing technique can generate this outcome where the single-crystalline semiconductor active components retain its original properties, thereby offering flexible electronic system with higher performance compared to organic materials based counterparts. In this dissertation, inorganic III-IV materials were explored to realize the high performance inorganic light emitting diodes (LEDs) on flexible substrate, ranging from bendable, to foldable, and to stretchable formats. In particular, advanced methods in materials growth, processing, mechanics, thermal design, and system manufacturing combine to enable unusual modes of use for inorganic LEDs. Using the type of LED systems, various applications for bio medicine and robotics such as photo-activation of drugs, in situ spectroscopy, or even optical ablation are possible, in minimally invasive modes. Overall, the outcomes have the potential to lead to applications that can complement new emerging areas as well as those already well addressed by conventional forms of inorganic LEDs or organic LEDs. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-06-11T14:02:08Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Kim_Rak Hwan.pdf: 4013726 bytes, checksum: 20d578356f23764f9f0d9fc5cb045bb1 (MD5) Made available in DSpace on 2012-09-18T21:17:53Z (GMT). No. of bitstreams: 2 Kim_RakHwan.pdf: 4556424 bytes, checksum: 8af867e225ea4359ac6b2ba5ed858faa (MD5) license.txt: 4055 bytes, checksum: 3fae7426d070be8764bfc347665eed3f (MD5) Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Seth Robbins (srobbins@illinois.edu) on 2012-09-18T21:21:06Z Item is restricted until 2014-09-18T21:21:01Z Restriction data tranferred 2014-07-01T11:11:27-05:00 Original Data Group with Access UIUC Users [automated] Release Date: 2014-09-18 16:21:01 UTC Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only Restriction Lifted for Item 34726 on 2014-09-18T10:00:50Z. http://hdl.handle.net/2142/34452 en Copyright 2012 Rak Hwan Kim flexible electronics stretchable systems optoelectronics microscale light emitting diodes graphene interconnects wireless operation Printed microscale inorganic light emitting diodes on flexible substrates for display, biomedical, and robotic applications Materials Science & Engineerng 1919 Materials Science & Engr 0130 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Materials Sci & Engr -UIUC 10KS0130PHD