<trans-title xml:lang="en"><i>In-situ</i> Growth of Conformal SnO<sub>2</sub> Layers for Efficient Perovskite Solar Cells </trans-title>

Suolan LIU; Fuyuan LUAN; Zihua WU; Chunhui SHOU; Huaqing XIE; Songwang YANG

doi:10.15541/jim20240202

Journal of Inorganic Materials, Volume. 39, Issue 12, 1397(2024)

In-situ Growth of Conformal SnO₂ Layers for Efficient Perovskite Solar Cells

Suolan LIU^1,2, Fuyuan LUAN^1,3, Zihua WU^3,4, Chunhui SHOU⁵, Huaqing XIE^3,4, and Songwang YANG^1,2、*

¹1. CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China

²2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³3. School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, China

⁴4. Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai 201209, China

⁵5. Zhejiang Baima Lake Laboratory Co. Ltd., Hangzhou 310000, China

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Figures & Tables(6)

1. SEM, AFM morphologies, and transmittance of FTO glass substrate, SC SnO₂ and IG SnO₂ films(a-c) Top-view SEM images of (a) FTO glass substrate, (b) SC SnO₂ and (c) IG SnO₂ films; (d, e) Cross-sectional SEM images of (d) SC SnO₂ and (e) IG SnO₂ films; (f) Transmittance spectra of SC SnO₂, IG SnO₂ films and FTO glass substrate; (g-i) AFM images of (g) FTO glass substrate, (h) SC SnO₂ and (i) IG SnO₂ films with insets showing the corresponding 3D images

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2. SEM morphologies, photoluminescence properties, and grain size distributions of perovskite films(a, b) Cross-sectional SEM images of perovskite films deposited on (a) SC SnO₂ and (b) IG SnO₂ films; (c) Steady-state PL spectra of perovskite films deposited on SC SnO₂ and IG SnO₂ films; (d, e) Top-view SEM images of perovskite films deposited on (d) SC SnO₂ and (e) IG SnO₂ films; (f) Grain size distribution histograms of perovskite films corresponding to (d, e)

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3. Photovoltaic performance of PSCs based on SC SnO₂ and IG SnO₂films(a) J-V curves; (b) IPCE spectra; (c-f) Statistical distributions of (c) PCE, (d) V_OC, (e) J_SC, and (f) FF; (g) TPC decay curves; (h) TPV decay curves; (i) V_OC dependent curves of the light intensity

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4. Schematic illustration of the growth of SnO₂ and perovskite layer

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Table 1.
Photovoltaic parameters of the perovskite solar cells
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Table 1.
Photovoltaic parameters of the perovskite solar cells
Sample V_OC/V J_SC/(mA·m^-2) FF/% PCE/%
SC SnO₂ 1.0950±0.0165 24.910±0.156 73.650±1.278 20.080±0.376
IG SnO₂ 1.1170±0.0126 25.060±0.079 76.650±0.809 21.450±0.321

Table 2.
Fitting parameters of the TPC and TPV curves
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Table 2.
Fitting parameters of the TPC and TPV curves
Curve Parameter SC SnO₂ IG SnO₂
TPC τ/μs 7.45 4.23
TPV A₁ 0.586 0.617
τ₁/ms 0.232 0.094
A₂ 0.244 0.197
τ₂/ms 1.548 1.539
τ_avg/ms 1.199 1.307

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Suolan LIU, Fuyuan LUAN, Zihua WU, Chunhui SHOU, Huaqing XIE, Songwang YANG. In-situ Growth of Conformal SnO₂ Layers for Efficient Perovskite Solar Cells [J]. Journal of Inorganic Materials, 2024, 39(12): 1397

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