유기발광 소자의 수송층 두께 변화에 따른 수치적 해석 = Numerical Analysis of OLED Luminescence Efficiency by Hole Transport Layer Change

다국어 초록 (Multilingual Abstract)

The OLED research is gone for two directions. One is material development research, and another one is structural improvement part. All two are thing to heighten luminescence efficiency of OLED. n other to improve luminescence efficiency of OLED Electron - hole pairs must consist much more in the device Their profiles are sensitive to mobility velocity of electrons and holes. In this paper, we demonstrate the difference of velocity between hole and electron by experiments, and compare with a data of simulation and experiment changing hole carrier transport layer thickness, so we get the optimal we improve luminescence efficiency. We suggest improving the efficiency of OLEDS would be to balance the injection of electrons and holes into light emission layer of the device. And, we improve understanding of the various luminescence efficiency through experiments and numerical analysis of luminescence efficiency in variable hole carrier transport layer's thickness.

참고문헌 (Reference)

1 "유기 박막트랜지스터Organic TFT)의 유기 활성층 기술동향" 17 (17): 3-, 2004.

2 "Visible light emission from semiconducting polymer diodes" 58 (58): 1982-, 1991.

3 "Steady- state Analysis for Contact Barrier Effects in Metal/Organic/Metal Structure using Nu- merical Bipolar Transport Simulation" Current. Appl. Phys., C. Appl. phys, (in press), 2003.

4 "Si- mulation of Organic Light Emitting Diodes" 335-112, 2002.

5 "Roles of injection and mobility in organic light emitting diodes" 83 (83): 5399-, 1998.

6 "Organic electroluminescent diodes" 51 (51): 913-, 1987.

7 "Organic Thin Film Tran- sistor의 기술현황" 17 (17): 5-, 2004.

8 "New Jersey. Physics of Semiconductor Devices 2th" 1984.

9 "Modelling temperature-dependent current-voltage cha- racteristics of an MEH-PPV organic light emitting device" 14 (14): 9925-, 2002.

10 "Device model investi- gation of single layer organic light emitting diodes" 87 (87): 833-, 1998.

11 "Contact injection into polymer light-emitting diodes" 70 : p.18671989.

12 "Charge injection in organic light-emitting diodes Tunneling into low mobility materials" 69 (69): 2270-, 1996.

13 "Carrier tunneling and device characteristics in polymer light-emitting diodes" 75 (75): 1656-, 1994.