Table 3 The Eg and ΔEg values of the studied perovskites using the HSE06 method compared with similar published perovskites.

From: Investigating the potential of triclinic ABSe3 (A = Li, Na, K, Rb, Cs; B = Si, Ge, Sn) perovskites as a new class of lead-free photovoltaic materials

Perovskite

Eg

ΔEg

Eg type

Ref

Perovskite

Eg

Method

Eg type

Refs.

LiSiSe3

1.69

0.405

Indirect

This work

(CH3NH3)PbI3

1.6

Exp.

Indirect

79,80

NaSiSe3

2.15

0.493

Indirect

This work

(C6H5NH3)BiI4

2.14

Exp.

Direct

81

KSiSe3

2.01

0.228

Indirect

This work

YMnO3

1.35

Exp.

Direct

82

RbSiSe3

2.18

0.317

Indirect

This work

CaSnS3

1.40

HSE06

Direct

34

CsSiSe3

2.33

0.265

Indirect

This work

BaHfS3

1.97

HSE06

Direct

34

LiGeS3

1.10

0.237

Indirect

This work

CaHfS3

2.23

HSE06

Direct

34

NaGeSe3

1.45

0.189

Indirect

This work

SrHfS3

2.32

HSE06

Direct

34

KGeSe3

1.78

0.311

Indirect

This work

Ba2CdS3

2.56

HSE06

Direct

83

RbGeSe3

1.32

0.418

Indirect

This work

Ba2CdSe3

2.16

HSE06

Direct

83

CsGeSe3

2.21

0.331

Indirect

This work

Ba2CdTe3

3.16

HSE06

Direct

83

LiSnS3

1.55

0.371

Indirect

This work

Ba6CS4

1.554

HSE06

Direct

84

NaSnSe3

1.63

0.288

Indirect

This work

Ba6CSe4

1.311

HSE06

Direct

84

KSnSe3

2.06

0.149

Indirect

This work

Ba6CTe4

1.517

HSE06

Direct

84

RbSnSe3

2.11

0.278

Indirect

This work

SrZrS3

2.009

TB-mBJ

Direct

41

CsSnSe3

2.27

0.352

Indirect

This work

SrZrSe3

1.096

TB-mBJ

Direct

41

     

BaZrS3

1.770

TB-mBJ

Direct

42

     

BaZrSe3

1.250

TB-mBJ

Direct

42