위의 그림에서 전하 운반자는 n-type 즉, 전자(electron)이 되고, 전하운반자는 n-type 반도체를 통해 흐르므로 n-channel이라 한다. 또다른 형태의 JFET는 p-channel이 있을 수 있다.
위의 그림에서 검은 부분은 금속전극(electrode)이며 JFET에서 각각의 이름은 BJT(Bipolar Junction Transistor)에 다음과 같이 대응된다 ;
Super-capacitors
EDLC(electrochemical double layer capacitors)
→ store E using ion adsorption
Pseudo-capacitors
→ fast surface redox reactions
→ higher capacitance than EDLC
Redox super-capacitors
electron transfer caused by electrochemical oxidation and reduction of active reagents
between two electrodes with different potentials
charge transfer properties
investigating
electrodes to subjects' heads and evaluating the electrical patterns of their brain waves, researchers can track the intensity of visceral responses such as anger, lust, disgust, and excitement. The fMRI, on the other hand, uses a giant magnet to track the blood flow throughout the brain as test subjects respond to visual, audio, or even taste cues.
In the field of marketing, scholars have agre
Experimental
In fabrication of MWCNT based glucose enzyme sensor, MWCNTs were grown on the sensing chip of which detection is for obtaining the electrical signal of the input source counting the difference from the original value which is read on the reference electrode. 10ml glucose oxidase was prepared in a standard of 0.4mg/ml solution. On this CNT-grown area, place some of this glucose oxida
Converts sunlight directly into electricity
Non polluting
Long lasting sources of energy
No need of maintenance
In the long run, solar electricity is cheaper
Electrons of dye absorb solar energy
Electrons of dye are excited & Generate electron-hole pairs
Electrons transfer from dye to FTO via TiO2
1/2 I3- + e 3/2 I- at counter electrode
3/2 I- 1/2
Electrodepostion is a process that
colloidal particles suspended in a liquid medium
migrate under the influence of an electric field
and are deposited onto an electrode !
“We can make better capacitor by
Improving quality of nanowires
Made from SLS mechanism”
1. Make template(Anodic Aluminium Oxide – AAO method)
2. Fill the catalyst in the
● pH meter
pH측정은 측정전극(Glass Electrogen)과 기준전극(Reference Electrode)의 직접 전위차법을 이용하여 용액중의 수소이온농도를 분석하는 장치이다. 물질과 전기와의 관계를 이용하여 그 물질을 분석하는 전기화학 분석법의 하나인 전위차법의 원리는 전극에 접하고 있는 물질을 농도에 따라 전극전위가
•Do you remember this ?
Structural degradation to cause instability
Risk of explosion
Safe & Stable
Battery
Cracks developed in the electrode tears the capsule and release CNT to restore the flow of current.
->Self-Healing
This is the structure which put CNT capsules into virus.
1. How is it better ?
The capsules doesn’t have to move to the target. I