Table 1 Work function (in unit of eV) of coated Cs3Sb with 1–3 layers of graphene, MoS2, and BN

From: Overcoming the quantum efficiency-lifetime tradeoff of photocathodes by coating with atomically thin two-dimensional nanomaterials

 

Monolayer

Bilayer

Trilayer

 

E F

E vac

W

E F

E v

W

E F

E vac

W

Graphene

−1.12

2.38

3.50

0.08

4.34

4.26

0.54

4.88

4.34

MoS2

−0.91

3.49

4.40

−0.10

4.38

4.48

0.90

5.44

4.54

BN

−0.19

1.41

1.60

0.98

2.76

1.78

1.50

3.35

1.85

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