Acta Photonica Sinica, Volume. 53, Issue 12, 1225001(2024)
Suppression Effect of MgO Nanoparticles on Carrier Recombination in ZnO Ultraviolet Photoelectric Conversion Coatings
Figures & Tables(12)
Fig. 2. Flow chart of preparation of ZnO-MgO nanoparticles coatings on the emitter surface of bare c-Si solar cells
Fig. 3. The change in PCE increment of solar cells with increasing mass ratio of MgO to ZnO nanoparticles in spin coating solution
Fig. 4. The J-V curves of the bare c-Si solar cell substrate，substrate solar cells only subjected to heat treatment（180 ℃，Nitrogen environment），substrate solar cells coated with ZnO，MgO，and ZnO-MgO nanoparticles，respectively
Fig. 5. The optical performance of the bare c-Si solar cell substrate，substrate solar cells coated with ZnO and ZnO-MgO nanoparticles，respectively，in the wavelength of 200~1 000 nm
Fig. 6. Emission spectra of ZnO in ZnO and ZnO-MgO nanoparticle coatings，respectively（the excitation wavelength is 340 nm）
Fig. 8. The XRD patterns for the substrate solar cells coated with ZnO and ZnO-MgO nanoparticles，respectively（2θ=30°~80°）
Fig. 9. The short-circuit current variation curves of bare c-Si solar cell substrate and substrate coated with ZnO and ZnO-MgO nanoparticles，respectively，after stop lighting
Table 1. The solar cell performance of the bare c-Si solar cell substrate，substrate solar cells only subjected to heat treatment
( 180 ℃，Nitrogen environment) ，substrate solar cells coated with ZnO，MgO，and ZnO-MgO nanoparticles，respectivelyView tableView in ArticleTable 1. The solar cell performance of the bare c-Si solar cell substrate，substrate solar cells only subjected to heat treatment
( 180 ℃，Nitrogen environment) ，substrate solar cells coated with ZnO，MgO，and ZnO-MgO nanoparticles，respectivelySolar cell type Voc/mV Jsc/（mA·cm-2） Fill factor/% PCE/% Rs/mΩ Bare c-Si solar cell substrate 609 37.2 75.7 17.10 100 Substrate only subjected to heat treatment 619 36.0 77.5 17.28 109 Substrate coated with ZnO nanoparticles 610 37.8 79.9 18.42 98 Substrate coated with MgO nanoparticles 621 36.2 75.7 17.04 100 Substrate coated with ZnO-MgO nanoparticles 618 39.2 79.4 19.22 92
Table 2. The XRD peaks of samples compared with the standard PDF cards
View tableView in ArticleTable 2. The XRD peaks of samples compared with the standard PDF cards
Name Face 2θ/（°） Standards 2θ/（°） PDF Card ZnO 100 31.713 31.770 00-036-1451 002 34.406 34.422 MgO 111 36.908 36.931 00-043-1022 200 42.909 42.900 Si 400 69.094 69.138 00-026-1481 Ag 111 38.078 38.177 00-004-0783 200 44.275 44.279 220 64.413 64.428 311 77.386 77.475 Ag3O4 12-1 32.924 32.960 00-040-1054 150 56.542 56.661 151 61.641 61.662
Table 3. The Hall effect measurement results of c-Si solar cell without SiNx and finger and substrate coated with ZnO and ZnO-MgO nanoparticles，respectively，under dark or light condition
View tableView in ArticleTable 3. The Hall effect measurement results of c-Si solar cell without SiNx and finger and substrate coated with ZnO and ZnO-MgO nanoparticles，respectively，under dark or light condition
Solar cell type Condition Sheet resistance/
（Ω·sq-1）
Carrier Concentration/
cm-3
Mobility/
（cm2·V-1·s-1）
c-Si solar cell without SiNx and finger Dark 193.2 -1.47×1019 114.0 substrate coated with ZnO Dark 165.8 -1.78×1019 89.5 substrate coated with ZnO-MgO Dark 170.4 -2.93×1019 77.9 c-Si solar cell without SiNx and finger Dark 147.9 -2.79×1019 67.4 substrate coated with ZnO Dark 148.1 -3.35×1019 72.3 substrate coated with ZnO-MgO Dark 138.2 -4.68×1019 79.2
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Yufeng TONG, Shijie ZENG, Hongwang YANG, Cai WEN, Jinlong TANG, Min CHEN, Xiaoyu LI, Zhuang XU, Yuan WEI, Yong REN. Suppression Effect of MgO Nanoparticles on Carrier Recombination in ZnO Ultraviolet Photoelectric Conversion Coatings[J]. Acta Photonica Sinica, 2024, 53(12): 1225001
Paper Information
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Received: May. 11, 2024
Accepted: Aug. 26, 2024
Published Online: Jan. 15, 2025
The Author Email: WEN Cai (wencai@swust.edu.cn), CHEN Min (chenmin215@qq.com), XU Zhuang (m13880754574@163.com)
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