Abstract：Organic light-emitting diode (OLED) is being considered as one of the most potential devices for the application of flat panel display. This article sets out the light principle and device structure of OLED. On this basis, we designed a new type of OLED devices based on voltage adjustable light, which adopted ADN material as the blue light-emitting layer and Alq3: DCJTB (2%) as the red light-emitting layer. Red light was emitted at low voltage and blue light was emitted at high voltage. Its structure is by improved increasing the hole blocking layer of material (tpbi) and electronic barrier material (m-Mdata) to extend the color range. Meanwhile, the optical and electrical properties of the devices were measured and achieved the expected results.
丁建林, 李晓云, 牛萍娟. 基于电压光色可调的OLED器件的研究[J]. 电工技术学报, 2013, 28(2增): 229-233.
Ding Jianlin, Li Xiaoyun, Niu Pingjuan. Research of the Dual-Color OLEDs Based on Variable Voltage. Transactions of China Electrotechnical Society, 2013, 28(2增): 229-233.
[1] Karg S, Meier M, Riess W. Light-emitting diodes based on poly-p-phenylene-vinylene charge-carrier injection and transport[J]. Appl Phys, 1997, 82: 1951-1954. [2] Burrows P E, Shen Z, Bulovic V, et al. Relationship between electroluminescence and current transport in organic heterojunction light-emitting devices[J]. Appl Phys, 1996, 79: 7991-7993. [3] Karg S, Meier M, Riess W. Light-emitting diodes based on poly-p-phenylene-vinylene Charge-carrier injection and transport[J]. Appl Phys, 1997, 82: 1951-1954. [4] Lin Hui, Jiang Yadong, Yu Junshen, et al. Low temperature ITO thin films and its application in the TOLED[J]. Journal of Optoelectronics, Laser, 2007, 19(9): 1068-1070. [5] Nakayama T, Tsutsui T. Enhancement in l-Doptical resonator devices with films[J]. Synth met, 1997, 91: 57-59. [6] Stossel M, Staudigel J, Steuber F, et al. Electron injection and transport in 8-hydroxyquinoline aluminum[C]. Synth Met, 2000, 111: 19-24. [7] TAK Y H. Criteria for ITO thin film as the bottom electrode of an organic light emitting diode[J]. Thin Solid Films, 2002, 411: 12-16.
2013, Vol. 28 
