[材料] 考古題問題
清大普化的考古題,找不到答案,懇請賜教
Which statement about semiconductor nanoparticles such as CdSe is incorrect?
(a)band gap of the material may decrease due to quantum confinement
(b)absorption band may blue-shift
(c)emission band may blue-shift
(d)relative intensities of the peak in the XRD pattern may be different
(e)widths of the peak in the XRD pattern may become borader.
網路上找到藍位移,指的是發射體往觀察者接近(還是看不懂答案)
本來是普化的問題,但手上的普化也沒相關的知識,就來這邊問了.
謝謝
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