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Organic temperature sensors and organic analog-to-digital converters based on p-type and n-type organic transistors
Affiliation:1. Technology Research Institute of Osaka Prefecture, 2-7-1 Ayumino, Izumi, Osaka 594-1157, Japan;2. The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan;3. PI-CRYSTAL Inc., 2-7-38 Nishimiyahara, Nishiyodogawa Ward, Osaka 532-0004, Japan;1. Key Laboratory of Advanced Display and System Applications, Ministry of Education, Shanghai University, Shanghai 200072, PR China;2. State Key Laboratory of Advanced Special Steels (Shanghai University), Shanghai 200072, PR China;1. School of Chemistry, Imperial College London, South Kensington, SW7 2AZ, London, UK;2. Department of Chemistry, College of Science, P.O. Box 27272, Sharjah, United Arab Emirates;1. Department of Chemical and Biomolecular Engineering, Yonsei University, Yeonsero 50, Seodaemun-gu, Seoul 120-749, Republic of Korea;2. Institute of Nanoscience and Nanotechnology, Yonsei University, Yeonsero 50, Seodaemun-gu, Seoul 120-749, Republic of Korea;1. School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea;2. Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea;3. Department of Electrical Engineering, Columbia University, New York, NY 10027, USA;1. Dept. Electronics Eng., Dong-A University, Busan, 49315, Republic of Korea;2. Nano Carbon Materials Research Group, Korea Electrotechnology Research Institute, Changwon, 51543, Republic of Korea;1. School of Physics and Technology, University of Jinan, Jinan 250022, China;2. School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China;3. Department of Physics, Jining University, Jining 273155, China
Abstract:We present an organic temperature detector that consists of an organic temperature sensor and an organic complementary read-out circuit. The temperature sensor is a Wheatstone bridge composed of temperature-sensitive polymer films and metal films. The read-out circuit receives an analog temperature signal from the temperature sensor and outputs a 1-bit digital signal that reflects whether the temperature has exceeded a threshold temperature or not. For more detailed read-out, detection of the temperature range the temperature sensor is within also demonstrated using an organic 2-bit analog-to-digital converter as a read-out circuit.
Keywords:Temperature sensor  Organic semiconductor  Analog-to-digital converter
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