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Organic Semiconductor and its applications

Organic Semiconductor and its applications. Sara Saedinia University of California, Irvine. Today we will talk about. Organic materials Advantages Disadvantages Applications Future of organic semiconductor. Organic Semiconductor (elect.) vs. Inorganic. Silicon based inorganic material

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Organic Semiconductor and its applications

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  1. Organic Semiconductorand its applications Sara Saedinia University of California, Irvine

  2. Today we will talk about • Organic materials • Advantages • Disadvantages • Applications • Future of organic semiconductor

  3. Organic Semiconductor (elect.) vs. Inorganic • Silicon based inorganic material • Covalently bonded crystals • Polymer based organic material • Van der Waals bonded crystals

  4. Why Organic?Advantages • Organic electronics are lighter, more flexible • Low-Cost Electronics • No vacuum processing • No lithography (printing) • Low-cost substrates (plastic, paper, even cloth…) • Direct integration on package (lower insertion costs)

  5. Organic Electronic $5 / ft2 Low Capital 10 ft x Roll to Roll Flexible Plastic Substrate Ambient Processing Continuous Direct Printing Silicon $100 / ft2 $1-$10 billion < 1m2 Rigid Glass or Metal Ultra Cleanroom Multi-step Photolithography Cost Fabrication Cost Device Size Material Required Conditions Process Why Organic?Comparison Example

  6. Why Organic?Advantages • They are also biodegradable (being made from carbon). • This opens the door to many exciting and advanced new applications that would be impossible using copper or silicon.

  7. Why not Organic?Disadvantages • Conductive polymers have high resistance and therefore are not good conductors of electricity. • Because of poor electronic behavior (lower mobility), they have much smaller bandwidths. • Shorter lifetimes and are much more dependant on stable environment conditions than inorganic electronics would be.

  8. Applications • Displays: • (OLED) Organic Light Emitting Diodes • RFID : • Organic Nano-Radio Frequency Identification Devices • Solar cells • Displays: • (OLED) Organic Light Emitting Diodes • RFID : • Organic Nano-Radio Frequency Identification Devices • Solar cells

  9. Displays (OLED) • One of the biggest applications of organic transistors right now. Organic TFTs may be used to drive LCDs and potentially even OLEDs, allowing integration of entire displays on plastic. • Brighter displays • Thinner displays • More flexible

  10. RFID • Passive RF Devices that talk to the outside world … so there will be no need for scanners.

  11. RFIDbenefits • Quicker Checkout • Improved Inventory Control • Reduced Waste • Efficient flow of goods from manufacturer to consumer

  12. Solar Cells • The light falls on the polymer • Electron/hole is generated • The electron is captured C60 • The electricity is passed by the nanotube

  13. Future of Organic Semiconductor • Smart Textiles • Lab on a chip • Portable compact screens • Skin Cancer treatment

  14. Thank You Questions?

  15. References • http://www.idtechex.com/printedelectronicsworld/articles/flexible_organic_13_56_mhz_rfid_tag_is_a_cost_breakthrough_00000613.asp • http://autoid.mit.edu/cs/ • http://www.physorg.com/news2339.html • http://engineeringtv.com/blogs/etv/archive/2008/03/26/organic-solar-cells.aspx • http://engineeringtv.com/blogs/etv/archive/2008/03/26/organic-solar-cells.aspx • http://spie.org/x19641.xml?ArticleID=x19641 • http://www.orgatronics.com/smart_fabrics.html • http://www.laserfocusworld.com/display_article/283860/12/none/none/News/MEDICAL-PHOTONICS:-OLEDs-enhance-PDT-for-skin-cancer • http://www.sematech.org/meetings/archives/other/20021028/14_Subramanian_Organic.pdf • www.eng.buffalo.edu/Courses/ee240/studentprojects/spr2006/group5.ppt • http://www.mpip-mainz.mpg.de/documents/aksp/Seminare/Old_Basisseminars/W2007/Basisseminars/electronics.pdf

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