譜帶半寬度 的英文怎麼說
中文拼音 [pǔdàibànkuāndù]
譜帶半寬度
英文
half bandwidth-
5nm and 10nm respec live1y, but the ye1 l ( ) w band i s also found on the ijl spectra of these two samp1es. the yel low peak i s very strong in 1 # samp1e, its intensi ty is higher than that of the ilear - - band peak. while the ye11ow band is quite weak compairing with the 1 # samp1e, and its radio of ye1low - - band / near - - band is on1y 0
1 # 、 2 #樣品的pl譜峰均很窄，其fwhm （半峰寬）僅為7 . 5nm和10nm ，但兩個樣品的pl譜均出現了黃峰， 1 #的黃峰較高，其強度超過了帶邊峰，而2 #的黃峰得到很大改善，其黃帶帶邊峰強度比僅為0 . 17 。According to the current problems such as low quantum efficiency. limited available sun energy spectrum range, and inefficient recovery, resulted from the practical using of photocatalysis, using the narrowband semiconductor cds ( eg = 2. 5ev ) to compound with tio2 seems to be an effective solution. since it will not only enlarge the region of the absorption with the proper narrow band of cds but also improve the photodegradation efficiency on account of the band overlap of the two, which makes the photo induced electron and holes separate more easily
本文針對光催化技術應用中存在的tio _ 2光催化量子效率低，吸收利用太陽能光譜范圍有限，催化劑回收困難等問題，通過窄禁帶半導體cds （ e = 2 . 5ev ）的復合，對納米tio _ 2進行了改性研究，一方面，由於cds的窄禁帶寬度可以擴展薄膜的光譜吸收范圍，另一方面，由於能帶的交疊，提高了光生電子和空穴的分離效率，從而提高了薄膜的光催化降解效率。Raman spectroscopic studies show that the intensities of the d with respect to g band and the widths ( fwhms ) of raman bands can represent the change of the cnx nanotube ' s crystallinity with the nitrogen incorporation
對cn _ x納米管樣品的拉曼光譜研究結果顯示，拉曼光譜中d帶和g帶的相對強度、拉曼峰半高寬等信息可以反映由於氮原子摻雜所引起的納米管結晶有序程度的變化。By comparable investigation, two luminescence mechanisms can explain the different variety of pl intensity of origin and annealed samples and are dominant mechanisms separately in unanneal and anneal course
經過退火處理后，在相同波長的光激發下發光強度逐漸增強，峰型逐漸變好，發光譜帶的半峰寬也變窄。分享友人