Essays about: "Organic Light Emitting devices"

Showing result 1 - 5 of 7 essays containing the words Organic Light Emitting devices.

1. 1. Synthesis and characterization of novel hybrid organic-inorganic materials

   University essay from KTH/Tillämpad fysikalisk kemi

   Author : Emil Blomdahl; [2021]
   Keywords : Hybrid organic-inorganic material; perovskite; X-Ray diffraction; thermal gravimetric analysis; differential scanning calorimetry; Hybrida organiska-ooorganiska material; perovskit; röntgendiffraktion; thermal gravimetric analysis; differential scanning calorimetry;

   Abstract : Efterfrågan på bättre och mer hållbart material ökar. Mer effektivt material kommer att behövas för att möta den ökande, globala efterfrågan. READ MORE

3. 2. Design and Fabrication of 1550 nm Photonic Crystal Surface Emitting Lasers

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : João Martins de Pina; [2018]
   Keywords : Photonic crystal; surface-emitting laser; metal organic chemical vapour deposition; III-V semi- conductors; light emitting diode.;

   Abstract : In this study, the design and fabrication of a monolithic InP-based 1550-nm photonic-crystal surfaceemitting laser (PCSEL) is reported. The device is composed by an InGaAsP multi-quantum well (MQW) active layer and InP photonic crystal (PhC) formed by metal organic chemical vapour deposition (MOCVD). READ MORE

4. 3. Surface energy modification of metal oxide to enhance electron injection in light-emitting devices : charge balance in hybrid OLEDs and OLETs

   University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

   Author : Sergio Apicella Fernandez; [2017]
   Keywords : organic; inorganic; semiconductors; OLEDs; OLETs; TFT; stack; thin-film; deposition; spin-coating; thermal; evaporation; process; reactive; sputtering; luminescence; EQE; PEIE; metal-oxide; ZnO; ZnO:N; MoO3; F8BT; Alq3; NPB;

   Abstract : Organic semiconductors (OSCs) present an electron mobility lower by several orders of magnitude than the hole mobility, giving rise to an electron-hole charge imbalance in organic devices such as organic light-emitting diodes (OLEDs) and organic light-emitting transistors (OLETs). In this thesis project, I tried to achieve an efficient electron transport and injection properties in opto-electronic devices, using inorganic n-type metal oxides (MOs) instead of organic n-type materials and a polyethyleneimine ethoxylated (PEIE) thin layer as electron transport (ETLs) and injection layers (EILs), respectively. READ MORE

5. 4. Utilizing an efficient color-conversion layer for realization of a white light-emitting electrochemical cell

   University essay from Umeå universitet/Institutionen för fysik

   Author : Joel Vedin; [2016]
   Keywords : Color-conversion layer; Light-emitting electrochemical cell; LEC; LECs; White light-emitting electrochemical cell; White light; R9; color-rendering index; CRI; High-color-rendering; color-conversion; top-emitting; Färgkonverteringslager; ljusemitterande electrokemisk cell; LEC; LECar; Vit ljusemitterande electrokemisk cell; vitt ljus; R9; färgåtergivningstal; CRI; färgkonvertering; topp-emitterande;

   Abstract : Organic semiconducting materials have received a lot of attention in recent years and can now be found in many applications. One of the applications, the light emitting electrochemical cell (LEC) has emerged due to its flat and lightweight device structure, low operating voltage, and possibility to be fully solution processed. READ MORE

6. 5. Inkjet deposition of electrolyte : Towards Fully Printed Light-emitting Electrochemical Cells

   University essay from Umeå universitet/Institutionen för fysik

   Author : Mattias Lindh; [2013]
   Keywords : inkjet printing; organic electronics; light-emitting electrochemical cell; solid electrolyte; coffee ring; stone ship; wettability; bläckstråleskrivare; organisk elektronik; ljusemitterande elektrokemiska celler; fast elektrolyt; kaffering; skeppssättning; vätbarhet;

   Abstract : Organic electronics is a hot and modern topic which holds great promise for present and future applications. One such application is the light-emitting electrochemical cell (LEC). It can be fully solution processed and driven at low voltage providing light emission from a large surface. READ MORE