Outcoupling efficiency enhancement in organic light emitting diodes via nano-structured indium tin oxide and nano-phosphors |
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| Authors: | Arunandan Kumar Ritu Srivastava Priyanka Tyagi M.N. Kamalasanan D.S. Mehta |
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| Affiliation: | 1. Center for Organic Electronics, National Physical Laboratory (Council of Scientific and Industrial Research), Dr. K.S. Krishnan Road, New Delhi 110 012, India;2. Instrument Design and Development Center, Indian Institute of Technology Delhi, New Delhi 110 016, India |
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| Abstract: | Nanostructures of indium tin oxide (NSITO) deposited using glancing angle deposition (GLAD) technique are used to enhance the outcoupling efficiency of blue and green OLEDs. The enhancement was found to be angle independent. The efficiency of device has increased by about 2.1 times by the use of NSITO at glass/air interface and ITO/glass interface. Similarly nano-phosphor particles were used to recover the glass modes by depositing them on the backside of the substrates. Both these methods were found to be effective for outcoupling efficiency enhancement. |
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| Keywords: | GLAD Nano-structure Outcoupling efficiency |
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