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标题: vasp怎样得到这种VBM CBM图? [打印本页]

作者
Author:
wmg166    时间: 2024-6-7 15:05
标题: vasp怎样得到这种VBM CBM图?
哪位计算这种 ,图 c  里面  VBM   CBM 用 vasp能计算得到吗 ?   

     Fig. 4c plots the electronic orbitals of VBM and CBM belonging toeach doping system. From Fig. 4c, we can observe that the electronicorbitals of VBM in different doping systems are similar; however, theCBM shows a big difference. The CBM of the Cu-doped system presentsthe typical d orbitals at Cu atomic positions. The CuI makes a majorcontribution to the CBM in this condition, which can be reflected by thelowest-unoccupied molecular orbitals (LUMO) of [SbCl6]3− and[CuCl6]5− in Fig. 4c. The CBM orbitals of Sb3+/Cu+ co-dopedCs2NaInCl6 show the eg orbitals (dx2− y2 ) of Cu, and Sb3+/Cu2+ codoped Cs2NaInCl6 owns the t2g orbitals (dxz) of Cu. This indicates thatthe Cu ions in the PLE emission process can be more easily excited,contributing to the light emission and corresponding to the yellow lightemission。
     Fig. 4b exhibits the normalized projected density of states (DOS) ofnon-doping and doping unit cells with comprised valence bandmaximum (VBM) and conduction band minima (CBM) of the [SbCl6]3−and [CuCl6]5− . In our first-principles simulations, all the doping structures are fully optimized and the lattice parameters’ changes areincluded intrinsically in our theoretical simulations. The local distortions effect is considered both in the modeling the double perovskiteCs2NaInCl6 by Cu+/Sb3+ Co-doping and the emission characteristicstheoretically. The DOS distributions of both Sb-doped and Cu-dopedCs2NaInCl6 are similar, where [CuCl6]5− shows larger CBM–VBM gapthan that of [SbCl6]3− . In Sb/Cu co-doping system, the CBM–VBM gap of[CuCl6]5− can be reduced with increasing Cu feed ratio from 4.96 eV and4.78 eV which means that lower excitation energy for the yellowemission is needed, consistent with our experimental results in Fig. 2b.Surprisingly, the CBM–VBM gap of [SbCl6]3− is 3.78 eV in Sb/Cu codoping Cs2NaInCl6 in Fig. 4b, which is between the split PLE peaks(3.7 and 3.9 eV) and also consistent with our PLE results in Fig. 2b [54].The CBM–VBM gap of [CuCl6]5− is 4.78 eV in Sb/nCu co-dopedCs2NaInCl6, which is also close to the PLE peak (4.5 eV). More specificinformation and electronic band structures of the Cs2NaInCl6 withoutdoping, with Sb ion doping, Cu ion doping, Sb/Cu doping, and Sb/nCudoping are shown in Fig. S9.

作者
Author:
Lance先生    时间: 2024-6-7 17:20
本帖最后由 Lance先生 于 2024-12-17 09:40 编辑

是可以的,算出来颜色不是这样,但是可以在VESTA里面调,你加我q吧,我这有参数,可以给你,你研究研究,1902945916
作者
Author:
wsz    时间: 2024-6-7 21:21
1) 参考https://www.vasp.at/wiki/index.p ... ed_charge_densities,设置VBM、CBM对应的K点和带
2) 使用vaspkit的515功能,https://vaspkit.com/tutorials.ht ... -ws2-heterojuctions
作者
Author:
wmg166    时间: 2024-12-16 16:46
我想得到VBM   CBM ,我的这个是不是输入70,有70个Gamma点吗?   
Vaspkit 界面出现这样的提示:
+-------------------------- Warm Tips --------------------------+
     Open Real-Space WaveFunction Files with VESTA/VMD Package.         
+---------------------------------------------------------------+
Which K-POINT do you want to plot? (1<= ikpt <=70)


IBZKPT文件里面的数据如下:

Automatically generated mesh
       4
Reciprocal lattice
    0.00000000000000    0.00000000000000    0.00000000000000             1
    0.00000000000000    0.50000000000000    0.00000000000000             1
    0.00000000000000    0.00000000000000    0.33333333333333             2
    0.00000000000000    0.50000000000000    0.33333333333333             2


作者
Author:
wmg166    时间: 2024-12-17 08:51
Lance先生 发表于 2024-6-7 17:20
是可以的,算出来颜色不是这样,但是可以在VESTA里面调,我也是好几年前算得了,有点忘了,不好意思啊。我 ...

大神,我想得到VBM   CBM ,我的这个是不是输入70,有70个Gamma点吗?   
Vaspkit 界面出现这样的提示:
+-------------------------- Warm Tips --------------------------+
     Open Real-Space WaveFunction Files with VESTA/VMD Package.         
+---------------------------------------------------------------+
Which K-POINT do you want to plot? (1<= ikpt <=70)


IBZKPT文件里面的数据如下:

Automatically generated mesh
       4
Reciprocal lattice
    0.00000000000000    0.00000000000000    0.00000000000000             1
    0.00000000000000    0.50000000000000    0.00000000000000             1
    0.00000000000000    0.00000000000000    0.33333333333333             2
    0.00000000000000    0.50000000000000    0.33333333333333             2
作者
Author:
wmg166    时间: 2024-12-17 08:52
wsz 发表于 2024-6-7 21:21
1) 参考https://www.vasp.at/wiki/index.php/Band-decomposed_charge_densities,设置VBM、CBM对应的K点和 ...

大神,我想得到VBM   CBM ,我的这个是不是输入70,有70个Gamma点吗?   
Vaspkit 界面出现这样的提示:
+-------------------------- Warm Tips --------------------------+
     Open Real-Space WaveFunction Files with VESTA/VMD Package.         
+---------------------------------------------------------------+
Which K-POINT do you want to plot? (1<= ikpt <=70)


IBZKPT文件里面的数据如下:

Automatically generated mesh
       4
Reciprocal lattice
    0.00000000000000    0.00000000000000    0.00000000000000             1
    0.00000000000000    0.50000000000000    0.00000000000000             1
    0.00000000000000    0.00000000000000    0.33333333333333             2
    0.00000000000000    0.50000000000000    0.33333333333333             2
作者
Author:
Lance先生    时间: 2024-12-17 09:42
wmg166 发表于 2024-12-17 08:52
大神,我想得到VBM   CBM ,我的这个是不是输入70,有70个Gamma点吗?   
Vaspkit  ...

应该是用不到vaspkit,我记得是只用vasp跑就可以了
作者
Author:
wmg166    时间: 2024-12-17 11:09
Lance先生 发表于 2024-12-17 09:42
应该是用不到vaspkit,我记得是只用vasp跑就可以了

1) 参考https://www.vasp.at/wiki/index.p ... ed_charge_densities,设置VBM、CBM对应的K点和带
2) 使用vaspkit的515功能,https://vaspkit.com/tutorials.ht ... -ws2-heterojuctions
作者
Author:
北大-陶豫    时间: 2024-12-17 14:34
wmg166 发表于 2024-12-17 08:52
大神,我想得到VBM   CBM ,我的这个是不是输入70,有70个Gamma点吗?   
Vaspkit  ...

你应该再看一下 KPOINTS 文件的内容
作者
Author:
wmg166    时间: 2024-12-18 09:04
北大-陶豫 发表于 2024-12-17 14:34
你应该再看一下 KPOINTS 文件的内容

输入 10 吗?
KPOINTS 内容:
K-Path Generated by VASPKIT.
   10
Line-Mode
Reciprocal
   0.0000000000   0.0000000000   0.0000000000     GAMMA         
   0.5000000000   0.0000000000   0.0000000000     X              

   0.0000000000   0.5000000000   0.0000000000     Y              
   0.0000000000   0.0000000000   0.0000000000     GAMMA         

   0.0000000000   0.0000000000   0.0000000000     GAMMA         
   0.0000000000   0.0000000000   0.5000000000     Z              

  -0.5000000000  -0.5000000000   0.5000000000     R_2            
   0.0000000000   0.0000000000   0.0000000000     GAMMA         

   0.0000000000   0.0000000000   0.0000000000     GAMMA         
   0.0000000000  -0.5000000000   0.5000000000     T_2            

  -0.5000000000   0.0000000000   0.5000000000     U_2            
   0.0000000000   0.0000000000   0.0000000000     GAMMA         

   0.0000000000   0.0000000000   0.0000000000     GAMMA         
   0.5000000000  -0.5000000000   0.0000000000     V_2            
作者
Author:
北大-陶豫    时间: 2024-12-18 09:56
wmg166 发表于 2024-12-18 09:04
输入 10 吗?
KPOINTS 内容:
K-Path Generated by VASPKIT.

这就对了,这样的 KPOINTS 当然可以有第 70 个 k 点
作者
Author:
fishna    时间: 2025-7-1 13:04
北大-陶豫 发表于 2024-12-18 09:56
这就对了,这样的 KPOINTS 当然可以有第 70 个 k 点

您好,请问我利用vaspkit-51-515,想得到波函数的平方图,其中高对称点K在OUTCAR中是第27个点,VBM是第九条,输入后得到的导入到VESTA之后,是这样的,是哪里出了问题呢?
作者
Author:
北大-陶豫    时间: 2025-7-1 13:40
fishna 发表于 2025-7-1 13:04
您好,请问我利用vaspkit-51-515,想得到波函数的平方图,其中高对称点K在OUTCAR中是第27个点,VBM是第九 ...

从你的文件名来看,vaspkit 这步应该没有问题。可能需要在 vesta 的 property 里调一下 isovalue。
作者
Author:
fishna    时间: 2025-7-2 16:44
北大-陶豫 发表于 2025-7-1 13:40
从你的文件名来看,vaspkit 这步应该没有问题。可能需要在 vesta 的 property 里调一下 isovalue。

好的,谢谢您





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