Analysis of Carrier Transport at Zn1−xSnxOy/Absorber Interface in Sb2(S,Se)3 Solar Cells
Abstract
:1. Introduction
2. Methods
3. Results and Discussion
3.1. Impact of ZTO Layer
3.2. Analysis of Photo-Generated Carrier Collection at ZTO/Sb2(S,Se)3 Interface
3.2.1. Effect of S Content and Thickness in Absorber Layer
3.2.2. Impact of Carrier Concentration of ZTO Layer
3.2.3. Effect of Sn/(Zn+Sn) Ratio in ZTO
3.2.4. Effect of ZTO Thickness
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Parameters | FTO | Sb2(S,Se)3 | Spiro-oMeTAD | CdS | ZTO |
---|---|---|---|---|---|
Thickness (nm) | 230 | 260 | 90 | 62 | 34 |
εr | 9 | 14.38 | 3 | 10 | 9 |
χ (eV) | 4.8 | 4.01 | 2 | 4.5 | 4.35 |
Eg (eV) | 3.7 | 1.49 | 3 | 2.4 | 2.7 |
NC (cm−3) | 2.2 × 1018 | 2.2 × 1018 | 2.5 × 1018 | 2.2 × 1018 | 2.2 × 1018 |
NV (cm−3) | 1.8 × 1019 | 1.8 × 1020 | 1.8 × 1019 | 1.8 × 1019 | 1.8 × 1019 |
µe (cm2/V.s) | 20 | 14 | 1.0 × 10−4 | 100 | 30 |
µh (cm2/V.s) | 10 | 2.6 | 2.0 × 10−4 | 25 | 5 |
NA (cm−3) | – | 1.0 × 1014 | 5.0 × 1018 | – | 10 |
ND (cm−3) | 1.0 × 1020 | – | – | 4.0 × 1017 | 1015–1021 |
Vth,e (cm/s) | 1.0 × 107 | 1.0 × 107 | 1.0 × 1018 | 1.0 × 107 | 1.0 × 107 |
Vth,p (cm/s) | 1.0 × 107 | 1.0 × 107 | 1.0 × 1018 | 1.0 × 107 | 1.0 × 107 |
FTO | Sb2(S,Se)3 | Spiro-oMeTAD | CdS | ZTO | ||
---|---|---|---|---|---|---|
Defect 1 | Defect 2 | |||||
Defect Type | Single Acceptor | Single Acceptor | Single Acceptor | Single Acceptor | Single Donor | Single Neutral |
Nt | 1.0 × 1015 | 1.3 × 1014 | 1.0 × 1015 | 1.0 × 1018 | 1.0 × 1014 | 3.0 × 1017 |
σe(cm2) | 1.0 × 10−15 | 1.99 × 10−14 | 1.99 × 10−14 | 1.0 × 10−15 | 3.0 × 10−15 | 1.0 × 10−14 |
σh(cm2) | 1.0 × 10−15 | 1.99 × 10−14 | 1.99 × 10−14 | 1.0 × 10−15 | 2.0 × 10−14 | 1.0 × 10−15 |
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Lin, J.; Xu, Z.; Guo, Y.; Chen, C.; Zhao, X.; Chen, X.; Hu, J.; Liang, G. Analysis of Carrier Transport at Zn1−xSnxOy/Absorber Interface in Sb2(S,Se)3 Solar Cells. Materials 2024, 17, 3214. https://doi.org/10.3390/ma17133214
Lin J, Xu Z, Guo Y, Chen C, Zhao X, Chen X, Hu J, Liang G. Analysis of Carrier Transport at Zn1−xSnxOy/Absorber Interface in Sb2(S,Se)3 Solar Cells. Materials. 2024; 17(13):3214. https://doi.org/10.3390/ma17133214
Chicago/Turabian StyleLin, Junhui, Zhijie Xu, Yingying Guo, Chong Chen, Xiaofang Zhao, Xuefang Chen, Juguang Hu, and Guangxing Liang. 2024. "Analysis of Carrier Transport at Zn1−xSnxOy/Absorber Interface in Sb2(S,Se)3 Solar Cells" Materials 17, no. 13: 3214. https://doi.org/10.3390/ma17133214