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[求助]
為什么Cu2O沒有shakeup峰?
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為什么Cu2O沒有shakeup峰? 按照shakeup 峰產(chǎn)的機(jī)理 shake-up line: Photoemission process produces photoelectrons and ions. some of the ions are in an exccited state, not in ground state, which leads the kinetic energy of photoelectrons reduced in several electron volts. (binding energy at higher position). 簡單說來就是,在產(chǎn)生一個光電子的過程中,一個外層電子同時被打入激發(fā)態(tài)。所以光電子會損失一部分動能,在譜上表現(xiàn)出更高的結(jié)合能。 For metal's 2p spectra, shake-up processes were attributed to the movement of an electron from a 3d orbital to the empty 4s orbital during ejection of the core 2p photoelectron. Reference: Yin L, Adler I, Tsang T, Matienzo LJ, Grim SO. ; Chem. Phy. Lett. ; 1974; vol24; 81 Cu2+ 外層為3d9 4s0 , s 是空軌道,Cu+外層為3d10 4s0,最外層也為空軌道,既然是d層電子跑到了s層,那Cu+的s層也是空的,為啥沒有shakeup 峰, 求大神指導(dǎo)。。 |
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