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005     20240712084513.0
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100 1 _ |a Yang, Qing
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245 _ _ |a Passivating Contact with Phosphorus‐Doped Polycrystalline Silicon‐Nitride with an Excellent Implied Open‐Circuit Voltage of 745 mV and Its Application in 23.88% Efficiency TOPCon Solar Cells
260 _ _ |a Weinheim
|c 2021
|b Wiley-VCH
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520 _ _ |a A P-doped polycrystalline silicon-nitride (n-poly-SiN x ) as the electron selective collection layer in a tunnel oxide passivated contact (TOPCon) solar cell is reported. The nitrogen content is controlled by the active gas ratio of R = NH3/(SiH4 + NH3) during the plasma-enhanced chemical vapor deposition (PECVD) process. The effects of R ratio on the material's composition, crystallinity, surface passivation, and contact resistivity are investigated. The poly-SiN x contact exhibits improved surface passivation in comparison with the reference poly-Si without N incorporation. The best double-sided passivated n-type alkaline-polished crystalline silicon wafer with the n-poly-SiN x /SiO x manifests the highest implied open-circuit voltage (iV oc) of ≈745 mV, with the corresponding single-sided saturated current density of 1.7 fA cm−2 and the effective lifetime (τ eff) of 10 ms at the injection level of ≈1 × 1015 cm−3. In contrast, the controlled sample with an n-poly-Si/SiO x passivation contact has a maximal iV oc of 738 mV. However, the primary drawback of the N doping is to raise the contact resistivity, but which is still in an acceptable range and shows little effect on the performance of solar cell with full-area contact. The proof-of-concept TOPCon solar cell using the n-poly-SiN x /SiO x passivating contact has achieved an efficiency of 23.88%, indicating the potential of the n-poly-SiN x for high-efficiency TOPCon solar cells.
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700 1 _ |a Liu, Zunke
|b 1
700 1 _ |a Lin, Yiran
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700 1 _ |a Liu, Wei
|b 3
700 1 _ |a Liao, Mingdun
|b 4
700 1 _ |a Feng, Mengmeng
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700 1 _ |a Zhi, Yuyan
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700 1 _ |a Zheng, Jingming
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700 1 _ |a Lu, Linna
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700 1 _ |a Ma, Dian
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700 1 _ |a Han, Qingling
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700 1 _ |a Cheng, Hao
|b 11
700 1 _ |a Yang, Zhenhai
|b 12
700 1 _ |a Ding, Kaining
|0 P:(DE-Juel1)130233
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700 1 _ |a Duan, Weiyuan
|0 P:(DE-Juel1)169946
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700 1 _ |a Chen, Hui
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700 1 _ |a Wang, Yuming
|b 16
700 1 _ |a Zeng, Yuheng
|0 0000-0002-0193-9971
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700 1 _ |a Yan, Baojie
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700 1 _ |a Ye, Jichun
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773 _ _ |a 10.1002/solr.202100644
|g Vol. 5, no. 11, p. 2100644 -
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|n 11
|p 2100644 -
|t Solar RRL
|v 5
|y 2021
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856 4 _ |u https://juser.fz-juelich.de/record/904121/files/Solar%20RRL%20-%202021%20-%20Yang%20-%20Passivating%20Contact%20with%20Phosphorus%25u2010Doped%20Polycrystalline%20Silicon%25u2010Nitride%20with%20an%20Excellent.pdf
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