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Enhanced efficiency of graphene-silicon Schottky junction solar cell through inverted pyramid arrays texturation 被引量:2
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作者 Jiajia Qiu Yudong Shang +6 位作者 Xiuhua Chen Shaoyuan Li Wenhui Ma Xiaohan Wan Jia Yang Yun Lei Zhengjie Chen 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2018年第11期2197-2204,共8页
Nanostructures of silicon are gradually becoming hot candidate due to outstanding capability for trapping light and improving conversion efficiency of solar cell. In this paper, silicon nanowires(SiNWs) and silicon ... Nanostructures of silicon are gradually becoming hot candidate due to outstanding capability for trapping light and improving conversion efficiency of solar cell. In this paper, silicon nanowires(SiNWs) and silicon inverted pyramid arrays(SiIPs) were introduced on surface of Gr-Si solar cell through silver and copper-catalyzed chemical etching, respectively. The effects of SiNWs and SiIPs on carrier lifetime, optical properties and efficiency of Gr-SiNWs and Gr-SiIPs solar cells were systematically analyzed. The results show that the inverted pyramid arrays have more excellent ability for balancing antireflectance loss and surface area enlargement. The power conversion efficiency(PCE) and carrier lifetime of Gr-SiIPs devices respectively increase by 62% and 34% by comparing with that of Gr-SiNWs solar cells. Finally, the Gr-SiIPs cell with PCE of 5.63% was successfully achieved through nitric acid doping. This work proposes a new strategy to introduce the inverted pyramid arrays for improving the performance of Gr-Si solar cells. 展开更多
关键词 Graphene-Si solar cell Silver/copper-assisted chemical etching Silicon nanowires Silicon inverted pyramid arrays
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Research on the surface passivation of nanostructure-textured crystalline silicon solar cell
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作者 DOU BingFei JIA Rui +4 位作者 LI HaoFeng CHEN Chen MENG YanLong LIU XinYu YE TianChun 《Science China(Technological Sciences)》 SCIE EI CAS 2013年第1期120-124,共5页
Nanostructure-textured solar cell owns unique properties but has some shortages especially in its fabrication and passivation.In this paper,nanostructures for crystalline silicon solar cell have been synthesized by co... Nanostructure-textured solar cell owns unique properties but has some shortages especially in its fabrication and passivation.In this paper,nanostructures for crystalline silicon solar cell have been synthesized by controllable method based on silver catalyzed chemical etching.In this way,only the front surface of cell is etched and rear surface is protected.It was found that cells textured via the new method obtained equally excellent optical while superior electrical properties compared with those textured via traditional HF/AgNO3 etching.The V OC and I SC of the cell were improved by 6% and 11%,respectively.Then the cells were passivated via a bi-layer passivation(SiO2 & SiN x),in contrast to traditional SiN x passivation.It was also found that cells with new passivation exhibited improved V OC and I SC by 4% and 25%,respectively.The encouraging results can provide fundamental data for developing the nanostructure-textured crystalline silicon solar cell in following researches. 展开更多
关键词 solar cell silicon nanostructure silver catalyzed chemical etching PASSIVATION
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