| Compound semiconductor (22) |  |
| Magnetic semiconductor (103) | |
| Organic semiconductor (69) | |
| Semiconductor (719) | |
| Wide-bandgap semiconductor (25) | |
| Compound semiconductor (22) | |
| Magnetic semiconductor (103) | |
| Organic semiconductor (69) | |
| Semiconductor (719) | |
| Wide-bandgap semiconductor (25) | |
which use inexpensive organic semiconductor materials sandwiched between two metal electrodes. OP devices can be made flexible and easily portable.
"And since the physical process governing organic photovoltaics is very similar to other organic semiconductors (organic light-emitting diodes, for example,
researchers who make organic semiconductors using physical vapor deposition things like light-emitting diodes (LEDS) and solar cells noticed that they could sometimes produce glass-coated devices with structured,
what they are calling an electron superhighway in an organic semiconductor that promises to allow electrons to flow faster
what they are calling"an electron superhighway"in one of these materials--a low-cost blue dye called phthalocyanine--that promises to allow electrons to flow faster and farther in organic semiconductors.
Increasing the distance these excitons can diffuse--before they reach a juncture where they're broken apart to produce electrical current--is essential to improving the efficiency of organic semiconductors.
and Naveen Rawat G'15--opens a window to view how increasing"long-range order"in the organic semiconductor films is a key mechanism that allows excitons to migrate farther."
#Performance and durability combine in liquid crystal transistors (Nanowerk News) Crystalline organic semiconductors have attracted a lot of interest for convenient low-cost fabrication by printed electronics.
Background Small-molecule versus polymer FETS The main issues around organic semiconductor FETS with small molecules are the low thermal durability.
A new generation of organic semiconductors may allow these kinds of flexible electronics to be manufactured at low cost,
what they are calling"an electron superhighway"in one of these materials--a low-cost blue dye called phthalocyanine--that promises to allow electrons to flow faster and farther in organic semiconductors Their discovery,
Increasing the distance these excitons can diffuse--before they reach a juncture where they're broken apart to produce electrical current--is essential to improving the efficiency of organic semiconductors.
and Naveen Rawat G'15--opens a window to view how increasing"long-range order"in the organic semiconductor films is a key mechanism that allows excitons to migrate farther."
#Scientists grow organic semiconductor crystals vertically for first time Our smartphones, tablets, computers and biosensors all have improved because of the rapidly increasing efficiency of semiconductors.
Now, materials scientists from the California Nanosystems Institute at UCLA have discovered a way to make organic semiconductors more powerful and more efficient.
Their breakthrough was in creating an improved structure for one type of organic semiconductor a building block of a conductive polymer called tetraaniline.
vertically aligned crystals for a variety of organic semiconductors using the same graphene substrate. he key was deciphering the interactions between organic semiconductors and graphene in various solvent environments,
There has been active R&d for organic semiconductors to develop a high-resolution patterning method for organic EL materials to be used in these products.
Fujifilm and imec jointly developed photoresist technology for organic semiconductors that enables submicron patterning without damaging the organic semiconductor materials,
This is why the technology has attracted wide attention since the development announcement with anticipation of a cost-effective way of manufacturing high-resolution organic semiconductor devices.
In the latest achievement, Fujifilm and imec produced full-color OLEDS with the photoresist technology for organic semiconductors
Since the commencement of joint research in November 2012, Fujifilm and imec have broken through the boundary of conventional technology to contribute to the progress of technology associated with organic semiconductors, e g.,
, developing the photoresist technology for organic semiconductors that enables the realization of high-resolution submicron patterns. The two companies will continue to undertake cutting-edge R&d involving semiconductor materials
and Fujifilm have demonstrated full-colour OLEDS by using their jointly-developed photoresist technology for organic semiconductors,
There has been active R&d for organic semiconductors to develop a high-resolution patterning method for organic EL materials to be used in these products.
In 2013, Fujifilm and imec jointly developed photoresist technology for organic semiconductors that enables submicron patterning without damaging the organic semiconductor materials,
This is why the technology has attracted wide attention since the development announcement with anticipation of a cost-effective way of manufacturing high-resolution organic semiconductor devices.
In the latest achievement, Fujifilm and imec produced full-colour OLEDS with the photoresist technology for organic semiconductors
and N-type Organic semiconductor Crystals Using the Plating Method March 15th, 2015advantest to Exhibit at SEMICON China in Shanghai, China, March 17-19:
and N-type Organic semiconductor Crystals Using the Plating Method Tanaka Holdings, Co.,Ltd. Head office: Chiyoda-ku, Tokyo;
Organic semiconductor Field Effect Transistors("OFET, "hereafter) using an electroless plating process. By using an electroless gold plating process with silver nanoparticles as a catalyst for an organic semiconductor,
this technology enables the formation in the atmosphere of top contact-type OFET (figure 1)* 2 contact electrodes without the use of a vacuum environment,
this technology realizes the formation of a high-performance OFET as there is little damage to the organic semiconductor,
and the performance of the high-mobility*3 organic semiconductor is affected not. Also, due to the emergence of high-performance n-type semiconductor materials in recent years, more advanced organic electronic devices can now be formed at a low-cost thanks to the simultaneous formation of contact electrodes for p-type and n-type
For p-type organic semiconductors the contact resistance of the contact electrodes using this technology is 0. 1kiloohm-cm or less,
which is the lowest value currently on record in terms of the contact resistance of organic semiconductor contact electrodes formed in the atmosphere.
coating-type organic semiconductors developed by Professor Takeya which can be formed atmospherically. This result enables the atmospheric formation of organic electronic devices with high-speed drives
which is achieved by applying a silver catalyst solution for plating that includes silver nanoparticles to an organic semiconductor crystal, after
This enables the single-process formation of low-contact resistance contact electrodes for p-type organic semiconductors
and n-type organic semiconductors, which facilitate a charge injection from silver (Figure 3). EEJA will announce the research findings relating to this technology at the 62nd Jpan Society of Applied Physics Spring Meeting,
Background to this technology OFET is a transistor that uses an organic semiconductor, which means that-among other characteristics unique to organic materials-it can be formed at low-temperatures,
The high-performance of organic semiconductor materials has progressed rapidly in recent years, and materials are being developed with double-digit increases over the figure that was thought to be the limit for the mobility of organic semiconductors.
The pioneering findings of Professor Takeya's research group make possible the atmospheric formation of high-mobility organic semiconductors,
which is expected to increase the fields of use for organic semiconductors. While there are several methods for the formation of OFET contact electrodes
they all suffer from such issues as requiring a vacuum environment and causing damage to organic semiconductors.
For example, thin film electrodes can be formed uniformly using the vacuum deposition method, but the equipment used to create a vacuum environment is incredibly expensive,
which damages the organic semiconductor, and does not achieve sufficient results as a transistor. This is why
in September 2014, EEJA together with Professor Takeya's research group jointly developed plating-process contact electrode formation technology for p-type organic semiconductors.
In order to stably form electrodes for organic semiconductor crystals, EEJA developed new gold nanoparticles as an electroless plating catalyst.
Also, Professor Takeya's research group developed a coating-type organic semiconductor that could be formed in a short time in the atmosphere with a large-surface thin film with uniform crystal orientation
and a mobility (which is the deciding factor in the performance of semiconductors) that greatly surpasses that of conventional organic semiconductors at 10cm2/Vs or more.
Currently, development is mainly progressing for devices that use p-type organic semiconductors, but the development of all-flexible displays and wearable computers,
*1 p-type organic semiconductors and n-type organic semiconductors Organic compounds crystalized with uniform crystal orientation acquire the characteristics of a semiconductor.
the electrified object is referred to as a p-(positive) type organic semiconductor. By injecting a negative charge, the electrified object is referred to as an n-(negative) type organic semiconductor.
The metal that is easier to be injected with a charge varies depending on whether it is a p-type or n-type.*
However, because the electrodes are formed after forming the organic semiconductor crystal, the organic semiconductor is damaged easily, and contact electrodes are difficult to form.*
*3 Mobility This signifies the ease of movement for the charge within the semiconductor. Electronic devices that carry out complex processes require a higher mobility.
Until a few years ago, the mobility of organic semiconductors was generally about 0. 1cm2/Vs, but materials have been developed in recent years with a mobility of 10cm2/Vs or more.*
The solar cells containing organic semiconductors created at KTU were constructed and tested by physicists at Lausanne. The tests revealed that the efficiency of the cellsconverting solar energy into electricity was 16.9%.
Spin-polarized electrons are predicted to have long lifetimes in organic semiconductors; Spin-based devices integrated with organic materials are expected to have low fabrication costs, light weight, and mechanical flexibility;
and an organic semiconductor known as Alq3 can be altered by coating the cobalt with a single-molecule thick layer (monolayer) that affects the electron spin states of the cobalt.
which is critical in electronic transport through the SAM and into the organic semiconductor. This finding suggests that the rapid oxidation of cobalt does not necessarily have to be a limiting factor in organic spintronics.
which is expected to improve spin polarization at the point of spin injection into an organic semiconductor,
The current work is part of a long-term effort to understand how adjusting the composition of an interface with organic semiconductor materials can control spintronic properties. or a complete spintronic device
over a micrometer) spin transport through an organic semiconductor. r
#Expert: Editing stem cell genes will evolutionizebiomedical research Applying a dramatically improved method for ditinggenes to human stem cells,
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