Improvement of the Light Extraction Efficiency in n-ZnO:Ga/p-Si Heterojunction Light Emitting Diodes by a SiO2 Current-Blocking Layer
スポンサーリンク
概要
- 論文の詳細を見る
We studied the role of a patterned SiO2 current-blocking layer (CBL) on the output power in polycrystal n-type ZnO:Ga/p-Si heterojunction light emitting diodes (LEDs). The introduction of a CBL considerably improved the light extraction efficiency by about 200%, despite the increased series resistance. It suppressed the vertical current with a low extraction efficiency by opaque metals and allowed the spreading current component to be enhanced, in contrast to conventional n-ZnO/p-Si LEDs operated only a vertical current component due to the grain boundaries in the ZnO films. This result suggests that the use of CBL is profitable method in the emitter application using the film with the polycrystal structure.
- 2009-08-25
著者
-
Lee Ho
School Of Chemistry Seoul National University
-
Kim Young
School Of Advanced Materials Science And Engineering Sungkyunkwan Univ.
-
Moon Jin
School Of Biomedical Engineering College Of Biomedical And Health Science Research Institute Of Biom
-
Moon Jin
School of Materials Science and Engineering, Kyungpook National University, Daegu 702-701, Korea
-
Cho Hyung
School of Mechanical Engineering, Yonsei University, Seoul 120-749, Korea
-
Kong Bo
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, Korea
-
Han Won
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, Korea
-
Lee Ho
School of Materials Science and Engineering, Kyungpook National University, Daegu 702-701, Korea
-
Cho Hyung
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, Korea
-
Kim Young
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, Korea
関連論文
- 1P4-28 液体金属中の溶質クラスターの超音波による均一分散(ポスターセッション)
- Ferromagnetism in Fe doped ZnO synthesized by co-precipitation method
- Study on structural, magnetic and transport properties of La_Ca_Mn_Co_xO_3 (x = 0.01-0.05) thin films
- GTRI-BB, a New Cytotoxic Isochromanquinone Produced by Micromonospora sp. SA-246
- A comparison of gene expression profiles between primary human AML cells and AML cell line
- 1Pa-45 超音波メルト処理によるグレインの改質に対する処理時間と溶液濃度の効果(ポスターセッション)
- 2-bit/cell Characteristics of High-Density and High-Performance SONOS Flash Memory Cell with Recessed Channel Structure
- Feature Compensation with Model-Based Estimation for Noise Masking(Speech and Hearing)
- Synthesis of Peptide Secondary Structure Mimetics Including γ-Turns, β-Strands and Cyclic Peptide Analogues
- MODELING THE MIXING OF WASTEWATER EFFLUENT DISCHARGED FROM OCEAN OUTFALLS USING A HYBRID MODEL
- A26 Numerical Simulation of Tennis Ball Impact
- Frequency Agile Microstrip Patch Antenna Using Piezoelectric Substrates : Electrical Properties of Condensed Matter
- Flow Characteristics of a Plane Jet with an Extended Lip-Plate and Serrated Tabs
- Phenology of the rhodomelarian algae Neorhodomela aculeata and Ceramium kondoi and their survival strategies against herbivorous snails
- Effect of Indium Mole Fraction on the Diode Characteristics of ZnO:In/p-Si(111) Heterojunctions
- 2P8-2 強力超音波によるアルミ合金の核生成の促進(ポスターセッション)
- Gate Workfunction Engineering of Bulk FinFETs for Sub-50nm DRAM Cell Transistors
- Optical properties of ultrathin copper thin films sandwiched between Nb-doped TiO2 films studied with spectroscopic ellipsometry
- Study on the Electrical and Thermal Conductivity of Ordered Mesoporous TiO2 Thin Film Incorporated with Pt Nanoparticles
- Improvement of the Light Extraction Efficiency in n-ZnO:Ga/p-Si Heterojunction Light Emitting Diodes by a SiO2 Current-Blocking Layer
- Fabrication and Comparison of Thermochromic Material-Based Fiber-Optic Sensors for Monitoring the Temperature of Water
- Measurements of Spectral Responses for Developing Fiber-Optic pH Sensor
- Development of Optical Fiber-Based Respiration Sensor for Noninvasive Respiratory Monitoring
- Optical and Structural Properties of Ion-implanted InGaZnO Thin Films Studied with Spectroscopic Ellipsometry and Transmission Electron Microscopy
- Microstructure Evaluation of Friction Stir Welded AZ91 with CaO Mg Alloy
- A Real-Time Perspective Volume Rendering using the GPU Multi-pass Acceleration Technique : Application to Virtual Colonoscopy
- A Fast Automatic Path Planning using the Energy Map and Path Tree Propagation for Virtual Colonoscopy
- SEXUAL MATURATION AND SPAWNING OF THE HARD CLAM, Meretrix lusoria, ON THE WEST COAST OF KOREA
- Influence of Growth Temperature on the Characteristics of Ga-Doped ZnO Thin Films Deposited by Magnetron Sputtering
- 3Pa4-12 溶接Al合金A390の強力超音波照射による微細化の進展(ポスターセッション)
- NAND Flash Memory String with Localized Buried Oxide Layer
- AlGaN/GaN Schottky Barrier Diode on Si Substrate Employing NiOx/Ni/Au Contact (Special Issue : Advanced Electromaterials)
- Multiuser Distortion Management Scheme for H.264 Video Transmission in OFDM Systems
- Nonsense-Mediated mRNA Decay Factors, UPF1 and UPF3, Contribute to Plant Defense
- Nucleation Enhancement of Al Alloys by High Intensity Ultrasound
- Optical Characterization of Double Peak Behavior in {10\bar{1}1} Semipolar Light-Emitting Diodes on Miscut m-Plane Sapphire Substrates
- Impact Ionization Behavior in Bulk Fin Field Effect Transistors with Fin Body Width and Bias Conditions
- Failure Pressure Assessment of the Circumferentially Flawed Heat Exchanger Tubes