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Table 1 The adsorption energy for alkali-metal-adsorbed g-GaN with different sites

From: Alkali-metal-adsorbed g-GaN monolayer: ultralow work functions and optical properties

Adsorption style EadsTGa (eV) EadsTB (eV) EadsTN (eV) EadsTM (eV)
Li − 1.89 − 1.90 − 1.26 − 1.92
Na − 1.07 − 1.12 − 0.76 − 1.18
K − 1.07 − 1.09 − 0.81 − 1.21
Rb − 0.94 − 0.98 − 0.77 − 1.07
Cs − 0.94 − 1.03 − 0.71 − 1.08