Kang, Chang-Mo Kang, Seok-Jin Mun, Seung-Hyun Choi, Soo-Young Min, Jung-Hong Kim, Sanghyeon Shim, Jae-Phil Lee, Dong-Seon 2024-01-20T00:33:09Z 2024-01-20T00:33:09Z 2021-09-05 2017-09-04 2045-2322 https://pubs.kist.re.kr/handle/201004/122303 In general, to realize full color, inorganic light-emitting diodes (LEDs) are diced from respective redgreen- blue (RGB) wafers consisting of inorganic crystalline semiconductors. Although this conventional method can realize full color, it is limited when applied to microdisplays requiring high resolution. Designing a structure emitting various colors by integrating both AlGaInP-based and InGaN-based LEDs onto one substrate could be a solution to achieve full color with high resolution. Herein, we introduce adhesive bonding and a chemical wet etching process to monolithically integrate two materials with different bandgap energies for green and red light emission. We successfully transferred AlGaInP-based red LED film onto InGaN-based green LEDs without any cracks or void areas and then separated the green and red subpixel LEDs in a lateral direction; the dual color LEDs integrated by the bonding technique were tunable from the green to red color regions (530-630 nm) as intended. In addition, we studied vertically stacked subpixel LEDs by deeply analyzing their light absorption and the interaction between the top and bottom pixels to achieve ultra-high resolution. English NATURE PUBLISHING GROUP LIGHT-EMITTING-DIODES DISTRIBUTED-BRAGG-REFLECTOR HIGH-EFFICIENCY Monolithic integration of AlGaInP-based red and InGaN-based green LEDs via adhesive bonding for multicolor emission Article 10.1038/s41598-017-11239-4 1 SCIENTIFIC REPORTS, v.7 SCIENTIFIC REPORTS 7 scie scopus 000408997700032 2-s2.0-85028873773 Multidisciplinary Sciences Science & Technology - Other Topics Article LIGHT-EMITTING-DIODES DISTRIBUTED-BRAGG-REFLECTOR HIGH-EFFICIENCY