Seo, Tae Hoon Kim, Seongjun Kim, Myung Jong Kim, Hyunsoo Suh, Eun-Kyung 2024-01-20T09:34:39Z 2024-01-20T09:34:39Z 2021-09-05 2014-05-30 0022-3727 https://pubs.kist.re.kr/handle/201004/126773 We introduced a two-dimensional graphene network on a Ag nanocluster as a transparent and current spreading electrode (TCSE) for a near-ultraviolet light emitting diode (NUV-LED), and compared the performance with those with graphene electrodes or conventional indium tin oxide (ITO) electrodes. The current-voltage characteristics and electroluminescence (EL) data showed that compound Ag nanocluster-graphene (CA-G) electrodes operated well as TCSEs in NUV-LED devices. The forward voltage at an input current of 20mA was 4.06V for the NUV-LED of current spreading electrodes with CA-G electrodes, which is only slightly higher than the value 3.96V with ITO electrodes as TCSEs. The EL intensity of NUV-LEDs with CA-G electrodes also showed a slight increase, compared to that of NUV-LEDs with planar ITO transparent conducting electrodes. English IOP PUBLISHING LTD GAN Compound Ag nanocluster-graphene electrodes as transparent and current spreading electrodes for improved light output power in near-ultraviolet light emitting diodes Article 10.1088/0022-3727/47/21/215103 1 JOURNAL OF PHYSICS D-APPLIED PHYSICS, v.47, no.21 JOURNAL OF PHYSICS D-APPLIED PHYSICS 47 21 scie scopus 000336207400006 2-s2.0-84900433810 Physics, Applied Physics Article GAN GaN light emitting diode compound Ag nanocluster-graphene electrode