NIMTE OpenIR  > 2018专题
A strong-oxidizing mixed acid derived high-quality silicon oxide tunneling layer for polysilicon passivated contact silicon solar cell
Tong, Hui; Liao, Mingdun; Zhang, Zhi; Wan, Yimao; Wang, Dan; Quan, Cheng; Cai, Liang; Gao, Pingqi; Guo, Wei; Li, Hao; Shou, Chunhui; Zeng, Yuheng; Yan, Baojie; Ye, Jichun
2018
发表期刊SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷号188页码:149-155
摘要We developed a new wet-chemical method to grow the high-quality tunnel silicon oxide (SiOx) layer by using a strong-oxidizing mixed acid, which consists of three volumes of HNO3 (68 wt%) and one volume of H2SO4 (98 wt%), named as the CNS (concentrated nitric and sulfuric) acid for short. In comparison with the HNO3 acid, the CNS acid grows high-quality SiOx layer with the higher oxidized state at 60 degrees C, where the relatively low temperature avoids the significant volatilization of acid and remains the quality of acid during the extending process. The results prove that the SiOx grown in the CNS acid benefits for the surface passivation of the n-type polysilicon passivated contact structure. An average gain of implied open circuit voltage (iV(oc)) by 2-10 mV and a reduction of single-side surface saturated dark current (J(0)) by 1-7 fA/cm(2) are obtained by using the 60 degrees C CNS-acid grown SiOx to replace the 60 degrees C HNO3-acid grown one. Also, in comparison with the 90 degrees C HNO3 acid, the 60 degrees C CNS acid exhibits improved stability and repeatability for preparing the SiOx during the extending process. The CNS-acid grown SiOx helps the polysilicon passivated contact solar cell to raise the efficiency by similar to 0.15% on average. In summary, the CNS acid has shown the potential for industrial application, which improves not only the manufacturing process but also the device performances.
关键词Si Solar Efficiency
学科领域Materials Science
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/16969
专题2018专题
推荐引用方式
GB/T 7714
Tong, Hui,Liao, Mingdun,Zhang, Zhi,et al. A strong-oxidizing mixed acid derived high-quality silicon oxide tunneling layer for polysilicon passivated contact silicon solar cell[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2018,188:149-155.
APA Tong, Hui.,Liao, Mingdun.,Zhang, Zhi.,Wan, Yimao.,Wang, Dan.,...&Ye, Jichun.(2018).A strong-oxidizing mixed acid derived high-quality silicon oxide tunneling layer for polysilicon passivated contact silicon solar cell.SOLAR ENERGY MATERIALS AND SOLAR CELLS,188,149-155.
MLA Tong, Hui,et al."A strong-oxidizing mixed acid derived high-quality silicon oxide tunneling layer for polysilicon passivated contact silicon solar cell".SOLAR ENERGY MATERIALS AND SOLAR CELLS 188(2018):149-155.
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