Thermodynamic Study of Adsorption Capacity between Metal Film and Optical Crystal: Adsorption Energy of Ni Films on LiNbO<sub>3</sub> Substrates
The growth of large areas of two-dimensional homogeneous graphene depends on the bond between the metal film, which acts as a catalyst, and the substrate material. The structural differences between the metal and the various anisotropic crystals make this growth method a challenge for the feasibilit...
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2021
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oai:doaj.org-article:71cd8a78eb7b4b25a718ddaa890fb66e2021-11-25T17:17:34ZThermodynamic Study of Adsorption Capacity between Metal Film and Optical Crystal: Adsorption Energy of Ni Films on LiNbO<sub>3</sub> Substrates10.3390/cryst111112732073-4352https://doaj.org/article/71cd8a78eb7b4b25a718ddaa890fb66e2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1273https://doaj.org/toc/2073-4352The growth of large areas of two-dimensional homogeneous graphene depends on the bond between the metal film, which acts as a catalyst, and the substrate material. The structural differences between the metal and the various anisotropic crystals make this growth method a challenge for the feasibility of growing graphene on optical crystals. In this paper, the evolution of the adsorption energy between nickel (Ni) films and Lithium Niobate (LiNbO<sub>3</sub>, LN) crystals is modelled under different thermal treatment environments by constructing a physical model of the temperature dependence of the adsorption energy between the two materials. With the aid of a series of simulated full annealing processes, the changes in adsorption energy at different temperatures were calculated. The results show that there are two “temperature windows” with target annealing temperatures of 700–800 K and 950–1050 K that prove to have high adsorption energies. This is of great guiding and practical significance for the direct transfer-free synthesis of graphene on LiNbO<sub>3</sub> substrates.Yuhang XuFei LuKaijing LiuChangdong MaMDPI AGarticleLiNbO<sub>3</sub> substratesNi filmsadsorption energygraphenedirect synthesisCrystallographyQD901-999ENCrystals, Vol 11, Iss 1273, p 1273 (2021) |
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DOAJ |
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DOAJ |
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EN |
| topic |
LiNbO<sub>3</sub> substrates Ni films adsorption energy graphene direct synthesis Crystallography QD901-999 |
| spellingShingle |
LiNbO<sub>3</sub> substrates Ni films adsorption energy graphene direct synthesis Crystallography QD901-999 Yuhang Xu Fei Lu Kaijing Liu Changdong Ma Thermodynamic Study of Adsorption Capacity between Metal Film and Optical Crystal: Adsorption Energy of Ni Films on LiNbO<sub>3</sub> Substrates |
| description |
The growth of large areas of two-dimensional homogeneous graphene depends on the bond between the metal film, which acts as a catalyst, and the substrate material. The structural differences between the metal and the various anisotropic crystals make this growth method a challenge for the feasibility of growing graphene on optical crystals. In this paper, the evolution of the adsorption energy between nickel (Ni) films and Lithium Niobate (LiNbO<sub>3</sub>, LN) crystals is modelled under different thermal treatment environments by constructing a physical model of the temperature dependence of the adsorption energy between the two materials. With the aid of a series of simulated full annealing processes, the changes in adsorption energy at different temperatures were calculated. The results show that there are two “temperature windows” with target annealing temperatures of 700–800 K and 950–1050 K that prove to have high adsorption energies. This is of great guiding and practical significance for the direct transfer-free synthesis of graphene on LiNbO<sub>3</sub> substrates. |
| format |
article |
| author |
Yuhang Xu Fei Lu Kaijing Liu Changdong Ma |
| author_facet |
Yuhang Xu Fei Lu Kaijing Liu Changdong Ma |
| author_sort |
Yuhang Xu |
| title |
Thermodynamic Study of Adsorption Capacity between Metal Film and Optical Crystal: Adsorption Energy of Ni Films on LiNbO<sub>3</sub> Substrates |
| title_short |
Thermodynamic Study of Adsorption Capacity between Metal Film and Optical Crystal: Adsorption Energy of Ni Films on LiNbO<sub>3</sub> Substrates |
| title_full |
Thermodynamic Study of Adsorption Capacity between Metal Film and Optical Crystal: Adsorption Energy of Ni Films on LiNbO<sub>3</sub> Substrates |
| title_fullStr |
Thermodynamic Study of Adsorption Capacity between Metal Film and Optical Crystal: Adsorption Energy of Ni Films on LiNbO<sub>3</sub> Substrates |
| title_full_unstemmed |
Thermodynamic Study of Adsorption Capacity between Metal Film and Optical Crystal: Adsorption Energy of Ni Films on LiNbO<sub>3</sub> Substrates |
| title_sort |
thermodynamic study of adsorption capacity between metal film and optical crystal: adsorption energy of ni films on linbo<sub>3</sub> substrates |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/71cd8a78eb7b4b25a718ddaa890fb66e |
| work_keys_str_mv |
AT yuhangxu thermodynamicstudyofadsorptioncapacitybetweenmetalfilmandopticalcrystaladsorptionenergyofnifilmsonlinbosub3subsubstrates AT feilu thermodynamicstudyofadsorptioncapacitybetweenmetalfilmandopticalcrystaladsorptionenergyofnifilmsonlinbosub3subsubstrates AT kaijingliu thermodynamicstudyofadsorptioncapacitybetweenmetalfilmandopticalcrystaladsorptionenergyofnifilmsonlinbosub3subsubstrates AT changdongma thermodynamicstudyofadsorptioncapacitybetweenmetalfilmandopticalcrystaladsorptionenergyofnifilmsonlinbosub3subsubstrates |
| _version_ |
1718412537387548672 |