비정질 실리콘은 많은 분야에 있어서 응용되고 있으며, 잠재력을 갖고 있는 물질이다. 저온 공정이 가능하고 빛에 대한 높은 감도를 가지며, 대면적에서 균일한 특성을 가진다. 화학 연료에 의한 환경 파괴 및 에너지 고갈에 따른 대체 에너지의 일환으로 비정질 실리콘을 이용한 태양전지(solar cell)는
oxide layer, it causes entire curve of graph to shift to the [Figure 12] C-V graph shift by direction of bias
side. These charges are generated by ions came in the process of deposition of oxide layer. When the charges exist in between the substrate and interface, the value of Vfb and C-V curve will shift by amount of the charge divided by Cox of Ci. The amount of shifting decreases as the posit
4. Equipment
4.1 RCA cleaning
RCA cleaning is a series of rinsing procedure prior to experiment with Si wafer. The purpose of the RCA clean is to remove organic contaminants (such as dust particles, grease or silica gel) from the wafer surface. There are three steps to be performed. The first step is to remove organic contaminant from surface of wafer. Second step is to remove any oxide layer
Characteristic of MOGS
1. Metal oxides possess electronic, chemical, and physical properties of high sensitivity to changes in their chemical environment.
2. The sensing properties of semiconductor metal oxide assures improved selectivity and stability
3. Their peculiar characteristics and size effects make them interesting for metal oxide gas sensors
The reason we take Nox as targe
oxidase (CNT–GOx) was examined in the presence of 1,4-benzoquinone (BQ)
To avoid the application of additional redox mediators, enzymes, which exibit redox properities and are able to directly exchange electrons with conducting materials, are applied.
Hemoproteins usually are able to exchange electrons directly with electrode.
Electron transfer proteins
9. n-type Semiconductor에서 온도에 따른 Carrier 농도 변화
매우 낮은 온도에서는 intrinsic EHP가 거의 존재하지 않는다. 온도가 증가함에 따라 도너의 전자들이 Conduct band로 옮겨지고 약 100K에서 모든 도너 원자가 이온화되는 과정이 발생한다. 이후 ni가 Nd와 비등해 질 때까지(intrinsic carrier 농도가 도너 농도와
1. 마취의 정의와 그 과정
'마취'란 약물을 사용하여 생물체의 전신 또는 국소의 감각을 마비시키는 일로 수술할 때 통증을 인위적으로 없앤다. 이처럼 마취는 본래 '감각을 없게 한다'는 뜻이었으나, 오늘날은 '수술에 관한 환자관리'라는 내용을 지니고 있다. 다시말해 마취약을 주사하는 것만이 아
emitting property of
some organic chemicals. Has been the basis of most commercial products to
date.
What is Hybrid LED?
Hybrid LED compensate
the defect of OLED
Good color
Improved power efficiency
Low cost, large area
Flexibility
Hybrid LED made by inorganic/organic
material which has heterostructure
Usually, consisting of metal (or oxide)
and polymer