| Patent application number | Description | Published |
|---|
| 20080303432 | Systems and methods for improving the qualities of polymer light-emitting electrochemical cells - A light-emitting device comprising a pair of electrodes, and an emitting polymer active layer between the pair of electrodes, and either a) an electron transport layer, b) a hole transport layer, or c) a low work function material layer, wherein said emitting polymer layer comprising a single phase combination of a light-emitting polymer and an ionic liquid, is provided. Such multilayered devices have increased stability at relatively high voltages, fast turn-on times, low operating voltage, high brightness and long lifetimes. | 12-11-2008 |
| 20080315187 | ENHANCING PERFORMANCE CHARACTERISTICS OF ORGANIC SEMICONDUCTING FILMS BY IMPROVED SOLUTION PROCESSING - Improved processing methods for enhanced properties of conjugated polymer films are disclosed, as well as the enhanced conjugated polymer films produced thereby. Addition of low molecular weight alkyl-containing molecules to solutions used to form conjugated polymer films leads to improved photoconductivity and improvements in other electronic properties. The enhanced conjugated polymer films can be used in a variety of electronic devices, such as solar cells and photodiodes. | 12-25-2008 |
| 20090101891 | Multi-layered bipolar field-effect transistor and method of manufacturing the same - Disclosed herein is a multi-layered bipolar field-effect transistor, including a gate electrode, a gate insulating layer, an electron transport layer, a hole transport layer, a source electrode, and a drain electrode, in which an intermediate separating layer is formed between the electron transport layer and the hole transport layer, and a method of manufacturing the same. The multi-layered bipolar field-effect transistor has advantages in that, since a P-channel and a N-channel are effectively separated, the electrical properties thereof, such as current ON/OFF ratio, electron mobility, hole mobility, and the like, are improved, and, since a device can be manufactured through a solution process without damaging layers, the processability thereof is improved. | 04-23-2009 |
| 20090108255 | Processing Additives for Fabricating Organic Photovoltaic Cells - Processing additives, as well as related compositions, photovoltaic cells, photovoltaic modules, and methods, are disclosed. | 04-30-2009 |
| 20090126779 | PHOTOVOLTAIC DEVICES IN TANDEM ARCHITECTURE - A tandem photovoltaic device includes a first cell and a second cell arranged in tandem. The first cell is configured to receive incident electromagnetic radiation and includes a first charge separating layer having a first semiconducting polymer adapted to create electric charge carriers generated by electromagnetic radiation. A second cell is configured to receive electromagnetic radiation passing out of the first cell in a light propagation path. The second cell includes a second charge separating layer having a second semiconducting polymer adapted to create electric charge carriers generated by electromagnetic radiation. A first titanium oxide layer is interposed between the first and second cells, wherein the first titanium oxide layer is substantially amorphous and has a general formula of TiOx where X being a number of 1 to 1.96. | 05-21-2009 |
| 20110056547 | PASSIVATING LAYER FOR PHOTOVOLTAIC CELLS - A photovoltaic cell which comprises a first electrode, a second electrode, a photoactive, charge-separating layer comprising a semiconducting polymer between the first and the second electrodes, and a passivatng layer adapted to enhance the lifetime of the photovoltaic cell. The passivating layer comprises a substantially amorphous titanium oxide having the formula of TiO | 03-10-2011 |
| 20110175064 | Light emitting device and method of fabricating the same - A light emitting device may include a first electrode on a substrate, a first emission layer on the first electrode, a buffer layer on the first emission layer, a middle electrode on the buffer layer, a second emission layer on the middle electrode, and a second electrode on the second emission layer. The buffer layer may include a material selected from the group consisting of a metal oxide, a polyelectrolyte, and a combination thereof. The first emission layer, buffer layer, middle electrode, and second emission layer may be fabricated using a wet process. | 07-21-2011 |
| 20110209759 | ARCHITECTURE FOR HIGH EFFICIENCY POLYMER PHOTOVOLTAIC CELLS USING AN OPTICAL SPACER - High efficiency polymer photovoltaic cells have been fabricated using an optical spacer between the active layer and the electron-collecting electrode. Such cells exhibit approximately 50% enhancement in power conversion efficiency. The spacer layer increases the efficiency by modifying the spatial distribution of the light intensity inside the device, thereby creating more photogenerated charge carriers in the bulk heterojunction layer. | 09-01-2011 |
