Design and Defect Analysis of Sb<sub>2</sub>S<sub>3</sub> Homojunction Thin Film Solar Cells

Youpeng Xiao; Huaiping Wang

doi:10.3788/AOS202242.2331002

Acta Optica Sinica, Volume. 42, Issue 23, 2331002(2022)

Design and Defect Analysis of Sb₂S₃ Homojunction Thin Film Solar Cells

Youpeng Xiao^* and Huaiping Wang

Engineering Research Center of Nuclear Technology Application, Ministry of Education, East China University of Technology, Nanchang 330013, Jiangxi , China

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Figures & Tables(12)

Fig. 1. Device structure in numerical simulation. (a) (n)Sb₂S₃heterojunction thin film solar cell; (b) (p)Sb₂S₃heterojunction thin film solar cell; (c) (n)Sb₂S₃/(p)Sb₂S₃homojunction thin film solar cell

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Fig. 2. Sb₂S₃ homojunction solar cells with different ETLs. (a) J-V curves; (b) quantum efficiency

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Fig. 3. Sb₂S₃homojunction solar cells with different HTLs. (a) J-V curve; (b) quantum efficiency

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Fig. 4. Performance of three kinds of Sb₂S₃ solar cells. (a) J-V curves; (b) quantum efficiency; (c) energy band structure

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Fig. 5. Effects of bulk defect density on device performance parameters. (a) V_oc; (b) J_sc;_{(c) F_F;(d) η}

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Fig. 6. Effects of defect density at interface on device performance parameters. (a) V_oc; (b) J_sc; (c) F_F;(d) η

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Table 1. Basic material parameters used in numerical simulation

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Table 1. Basic material parameters used in numerical simulation

Parameter	FTO	（n）Sb₂S₃	（p）Sb₂S₃
Thickness /µm	0.5	0.1	0.5
ε_r	9.00	7.08	7.08
χ /eV	4.00	3.72	3.72
E_g /eV	3.5	1.7	1.7
N_A /（10¹⁶ cm^-3）	0	0	4.08
N_D /（10¹⁷ cm^-3）	200.0	4.7	0
N_c /（10¹⁸ cm^-3）	2.2	20.0	20.0
N_v /（10¹⁹ cm^-3）	1.8	1.0	1.0
µ_n /（cm²·V^-1·s^-1）	20.0	9.8	9.8
µ_p /（cm²·V^-1·s^-1）	10	10	10
N_t /cm^-3	10¹⁵	Variable	Variable

Table 2. Material parameters of EHLs

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Table 2. Material parameters of EHLs

Parameter	ZnO	CdS	SnO₂	TiO₂	ZnS
Thickness /µm	0.06	0.06	0.06	0.06	0.06
ε_r	9	9	9	10	9
χ /eV	4.40	4.20	4.00	3.90	3.44
E_g /eV	3.3	2.4	3.6	3.2	3.6
N_A /cm^-3	0	0	0	0	0
N_D /（10¹⁶ cm^-3）	100	100	10	100	4
N_c /（10¹⁸ cm^-3）	2.2	2.2	18.0	22.0	18.0
N_v /（10¹⁹ cm^-3）	1.8	1.8	2.4	1.8	2.4
µ_n /（cm²·V^-1·s^-1）	10	100	240	100	100
µ_p /（cm²·V^-1·s^-1）	2.5	25	25	25	25
N_t /（10¹⁵ cm^-3）	1	1	1	1	1

Table 3. Material parameters of HTLs

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Table 3. Material parameters of HTLs

Parameter	NiO_x	CuI	CuSCN	Cu₂O	Spiro-OMeTAD
Thickness /µm	0.05	0.05	0.05	0.05	0.15
ε_r	11.00	6.50	10.00	7.11	3.00
χ /eV	1.46	2.10	1.90	3.20	2.45
E_g /eV	3.60	2.98	3.40	2.17	3.00
N_A /（10¹⁸ cm^-3）	1	1	1	1	2
N_D /cm^-3	0	0	0	0	0
N_c /（10¹⁷ cm^-3）	160	280	170	2	220
N_v /（10¹⁹ cm^-3）	1.1	1.0	250.0	1.1	1.8
µ_n /（cm²·V^-1·s^-1）	50	100	2×10^-4	200	1.7×10^-4
µ_p /（cm²·V^-1·s^-1）	50	43.9	0.2	80	2×10^-4
N_t /（10¹⁵ cm^-3）	1	1	1	1	1

Table 4. Performance parameters of Sb₂S₃ homojunction solar cells with different ETLs
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Table 4. Performance parameters of Sb₂S₃ homojunction solar cells with different ETLs
ETL V_oc /V J_sc /（mA·cm^-2） F_F /% η /%
ZnO 1.15 15.16 74.98 13.13
CdS 1.16 15.65 80.99 14.65
SnO₂ 1.16 16.02 81.91 15.20
TiO₂ 1.17 18.28 82.61 17.60
ZnS 1.18 20.33 82.79 19.84

Table 5. Performance parameters of Sb₂S₃homojunction solar cells with different HTLs
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Table 5. Performance parameters of Sb₂S₃homojunction solar cells with different HTLs
HTL V_oc/V
J_sc /
（mA·cm^-2）
F_F /% η /%
NiO_x 1.17 18.97 81.46 18.09
CuI 1.17 19.00 81.45 18.09
CuSCN 1.17 19.71 82.18 19.00
Cu₂O 1.18 20.33 82.79 19.84
Spiro-OMeTAD 1.18 20.57 82.76 20.15

Table 6. Performance parameters of Sb₂S₃ solar cells with different structures
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Table 6. Performance parameters of Sb₂S₃ solar cells with different structures
Structure V_oc /V
J_sc /
（mA·cm^-2）
F_F /% η /%
（n）Sb₂S₃ 1.10 10.79 78.56 8.60
（p）Sb₂S₃ 1.04 20.42 71.54 15.22
（n）Sb₂S₃/（p）Sb₂S₃ 1.19 20.66 83.04 20.34

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Youpeng Xiao, Huaiping Wang. Design and Defect Analysis of Sb₂S₃ Homojunction Thin Film Solar Cells[J]. Acta Optica Sinica, 2022, 42(23): 2331002

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Paper Information

Category: Thin Films

Received: Mar. 4, 2022

Accepted: Jun. 13, 2022

Published Online: Dec. 14, 2022

The Author Email: Xiao Youpeng (xiaoypnc@ecut.edu.cn)

DOI:10.3788/AOS202242.2331002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Basic material parameters used in numerical simulation

Table 1. Basic material parameters used in numerical simulation

Table 2. Material parameters of EHLs

Table 2. Material parameters of EHLs

Table 3. Material parameters of HTLs

Table 3. Material parameters of HTLs

Table 4. Performance parameters of Sb2S3 homojunction solar cells with different ETLs

Table 4. Performance parameters of Sb2S3 homojunction solar cells with different ETLs

Table 5. Performance parameters of Sb2S3 homojunction solar cells with different HTLs

Table 5. Performance parameters of Sb2S3 homojunction solar cells with different HTLs

Table 6. Performance parameters of Sb2S3 solar cells with different structures

Table 6. Performance parameters of Sb2S3 solar cells with different structures

Table 4. Performance parameters of Sb₂S₃ homojunction solar cells with different ETLs

Table 4. Performance parameters of Sb₂S₃ homojunction solar cells with different ETLs

Table 5. Performance parameters of Sb₂S₃homojunction solar cells with different HTLs

Table 5. Performance parameters of Sb₂S₃homojunction solar cells with different HTLs

Table 6. Performance parameters of Sb₂S₃ solar cells with different structures

Table 6. Performance parameters of Sb₂S₃ solar cells with different structures