Improvement of light out-coupling in organic light-emitting diodes by printed nanosized random texture layer

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• 作者：Se Joong Shin^a ; Tae Hyun Park^a ; Jin Hwan Choi^a ; Eun Ho Song^a ; Hakkoo Kim^a ; Hyun Jun Lee^a ; Jeong-Ik Lee^b ; Hye Yong Chu^b ; Kyu Back Lee^c ; Young Wook Park^d ; ^{zerook@korea.ac.kr} ; Byeong-Kwon Ju^a ; ^{bkju@korea.ac.kr}
• 关键词：Organic light-emitting diodes (OLEDs) ; Nanosized structures ; Random pattern ; Out-coupling ; Printing process
• 刊名：Organic Electronics
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：14
• 期：1
• 页码：187-192
• 全文大小：941 K

文摘

We demonstrate greatly improved light out-coupling efficiency and undistorted light output in organic light-emitting diodes (OLEDs) containing a nanosized random texture layer (nRTL). The nRTL is fabricated on a glass substrate by an inexpensive and simple printing process. Compared to a conventional device, OLEDs with the nRTL showed greatly improved power efficiency (+102 % ) at a luminance of 3000 cd/m². The nRTL is free of viewing-angle-dependent color and brightness distortion and suitable for industrial mass production.