StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...

Organic memory transistor - Essay Example

Cite this document
Summary
Microelectronics According to recent presentation made by Sundes J. Fakhera and Mohammed F. Mabrooka on the electrical characteristics of OTFTs, based on pentacenen/PMMA/Aluminium and OTFMTs, based on Gold nanoparticle as floating gate with double layers of PMMA, both the devices have gold as the drain/source contact…
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER94.1% of users find it useful
Organic memory transistor
Read Text Preview

Extract of sample "Organic memory transistor"

Download file to see previous pages

They (Fakher & Mabrooka, 2012) reported that the output characteristics for both the devices show perfect and good saturation area at low and high voltage; VDS respectively. They also found out that, in the control device, the mobility (µ), the threshold and the on/off rotation were 0.27cm2 V-1S-1, 16V and 4.1 X 104 respectively. However, in the organic memory floating gate; the mobility was found to be 0.04 cm2 V-1S-1, the threshold was between -23 and -47 volts while the on/off ratio was 2.3 X 103. For high mobility and increasing on/off ratio, the smooth surface, uniform and loose pin holes where the reverse proportionality of PMMA concentration which was above 15wt%, and can be a significant influence on the average grain region and average roughness of pentacene layer.

They also stated that a clear trend was there to show that there was no hysteresis in the control transistor due to non charge storage element. In addition, they said that the gold floating gate of the organic memory transistor causes low mobility due to the gold nanoparticle affected to follow and carry charges from the first layer of PMMA through gold floating gate to the second layer of the PMMA in the insulator. . That was when different pulses of OTMFTs were applied to the gate electrodes.

This was evident in non-volatile state attitude for the organic thin film memory transistor device. Graphene oxide and floating gate: Other authors, including Tae-Wook Kim, Yan Gao, Orb Action, Hin-Lap, Hong Ma and others, also reported about the electrical characteristics of organic non-volatile memory transistors (ONVMTs) using chemically synthesized grapheme oxide (GO) as a charge trapping layer based on pentacene/PMMA/Grapheme oxide nanosheets/SiO2.GO (Kim, et al., 2010). the nanosheets were produced by modified Hammer’s process then deposited on top of SiO2 substrate using spin coating and hot plate (3000 rpm for 40s and 120C0 for 10 minutes), respectively.

The drain/source contact was of gold and had a thickness of 50nm thick and a semiconductor layer of 50nm was deposited using thermal evaporation of pentacene. The GO nonosheets were located between PMMA and SiO2 layers of about 10nm of thickness. A clear trend, morphological properties of grapheme oxide such as rougher and coverage region were dependent on the concentration of its solution. The output and transfer characteristics of both the devices, namely; control (OFETs) device without grapheme nanosheets and (ONVMTs) device within GO nanosheets, have similar values of mobility ), threshold and on/off ration which were 0.

16 cm2V-1S-1, 6.5V and 106 respectively. On the other hand, travelling electrons or hole from pentacene to GO nanosheets through PMMA layer resulted to hysteresis which was featured in the transfer characteristics of (ONVMT) device. However, there was no hysteresis in the control (OFET) due to the absence of the trap charge

...Download file to see next pages Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Organic memory transistor Essay Example | Topics and Well Written Essays - 750 words”, n.d.)
Retrieved from https://studentshare.org/physics/1481786-organic-memory-transistor
(Organic Memory Transistor Essay Example | Topics and Well Written Essays - 750 Words)
https://studentshare.org/physics/1481786-organic-memory-transistor.
“Organic Memory Transistor Essay Example | Topics and Well Written Essays - 750 Words”, n.d. https://studentshare.org/physics/1481786-organic-memory-transistor.
  • Cited: 0 times

CHECK THESE SAMPLES OF Organic memory transistor

The Great Gatsby

The Great Gatsby is almost completely dominated by the themes of time and memory and the inescapabable nature of the two.... It all seems to exist in one place and seems to suggest that it is also memory he is talking about, for where else in real life does all time exist in one place except in the human mind These lines from Little Gidding, bring a new dimension to the concept of circularity of time....
5 Pages (1250 words) Essay

The Role of Technology in Translation and Its Effect on the Translation Process

The field of translation studies has seen tremendous changes in recent decades due in large part to the computer revolution.... Machine translation (MT), for instance, received a lot of attention in the early days of computers when it was believed that machines would one day replace human translators....
8 Pages (2000 words) Essay

Computer Will the cost and power of personal computers continue on the current trend

It is assumed that these computers will incorporate… These future computers will have petabytes or 1024 terabytes of physical memory.... Scientists are of the opinion that even the basic model personal computer in the years to come will have processors with much higher capacities....
4 Pages (1000 words) Essay

The Fabrication of High-Performance Electronic Devices

Although silicon has been the material of choice for the fabrication of high-performance electronic devices for the past fifty years, a phenomenal surge in interest in organic electronics within the relatively recent years has been the result of expectations of significantly… organic electronics, which deals with conductive polymers, plastics or small molecules that are carbon-based, holds promise for enabling the construction of a new generation of fundamental Traditional electronics, involving the use of inorganic conductors, including copper and silicon, presents a use of materials that are heavier and more expensive than conductive polymers and organic semiconductors include dielectrics, conductors and light emitters that have many and varied applications in the field of electronics (Sun, 2008, Chapter 5) and (Wikipedia, 2010, “organic Electronics”)....
4 Pages (1000 words) Essay

Computer Studies

The paper "Computer Studies" presents that the meaning of the term Computer is a system that performs the calculation on data & processes it to give the desired output.... The calculator also has the same purpose, but, here the computer is not only used for performing small arithmetic operations....
22 Pages (5500 words) Research Paper

History and Impact of Computing

The paper "History and Impact of Computing" gives detailed information on the process of making of the digital era and the impact it on the course of history.... Computers, processors, servers, laptops, mobile phones, and even gaming consoles discussed in this paper.... hellip; The history and evolution of processors are fascinating with early computing technology inventions stringed to defense contracts in that data was stored secretly....
5 Pages (1250 words) Assignment

Computer Architecture in the 1970s

This coursework "Computer Architecture in the 1970s" describes computer architecture and its perspective.... This paper outlines changes in RAM technology and persistent storage, how architecture was affected by the cost of the hardware, differences in computer architecture of 1970s and now.... hellip; Computer architecture is a comprehensive subject that comprises everything from the affiliation between manifold computers to precise constituents inside a computer....
9 Pages (2250 words) Coursework

Nanotechnology and Future Networks

However, the mobility that comes along with this new technology calls for limited size or memory as well as save on energy/ power consumption.... As a consequence, sensing, intelligence, increased data rates, and context awareness demands large memory space and computing power which together with the size limitations leads to severe challenges in thermal management.... However, current technologies are not in a position to provide solutions for sensing, audio, actuation, embedding intelligence into the environment, power-efficient computing, memory, energy sources, human-machine interaction, materials, mechanics, manufacturing, and environmental issues....
8 Pages (2000 words) Literature review
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Contact Us