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Preparation and Photoelectric Properties of Zn2SnO4-Based Composite Nanomaterials
Emerging Materials Research ( IF 2.2 ) Pub Date : 2020-08-14 , DOI: 20.00103 Xueai Yin, Weiwei Feng, Xin Zhang
Emerging Materials Research ( IF 2.2 ) Pub Date : 2020-08-14 , DOI: 20.00103 Xueai Yin, Weiwei Feng, Xin Zhang
Zn-type compound Zn2SnO4 is critical in the field of thin-film solar cells and photocatalysis. In this study, a new composite nanomaterial Zn2SnO4/SnO2 was synthesized by high temperature synthesis spray process. The electrochemical properties of the samples were tested. Besides, different ratios of Zn2SnO4/SnO2 nano-heterostructures were synthesized by using the ion exchange method, with Zn2SnO4 nanocrystals as substrates. Also, their photocatalytic activities in a three-electrode system of simulated solar light sources were discussed. The photoelectric property of Zn2SnO4/SnO2 obtained from the solvothermal method was tested. The photocurrent of the obtained Zn2SnO4/SnO2 thin-film reached 2.6 μA, while the photocurrent of the Zn2SnO4 thin film was only 0.13 μA. In the meantime, the fluorescence spectrum test proved that the recombination of Zn2SnO4 and SnO2 reduced the recombination of photo-generated carriers. The photocatalytic test of Zn2SnO4/SnO2 obtained from the ion exchange method showed that given a 0.5 V reversible hydrogen electrode, the photocurrent of Zn2SnO4/SnO2 reached 0.62 mA/cm2. This indicator was 10 times the value of pure Zn2SnO4 photocurrent under the same condition, which showed an increase in the photocatalytic capacity of Zn2SnO4. It proved that Zn2SnO4/SnO2 composite nanomaterials had better photoelectric performances and application prospects in the fields of solar cells and photocatalysis.
中文翻译:
Zn2SnO4基复合纳米材料的制备及光电性能
Zn型化合物Zn2SnO4在薄膜太阳能电池和光催化领域至关重要。本研究通过高温合成喷涂工艺合成了一种新型的纳米复合材料Zn2SnO4 / SnO2。测试了样品的电化学性能。此外,采用离子交换法以Zn2SnO4纳米晶体为基质,合成了不同比例的Zn2SnO4 / SnO2纳米异质结构。此外,还讨论了它们在模拟太阳光源的三电极系统中的光催化活性。测试了由溶剂热法获得的Zn2SnO4 / SnO2的光电性能。所得Zn2SnO4 / SnO2薄膜的光电流达到2.6μA,而Zn2SnO4薄膜的光电流仅为0.13μA。同时,荧光光谱测试证明Zn2SnO4和SnO2的重组减少了光生载流子的重组。离子交换法制得的Zn2SnO4 / SnO2的光催化试验表明,给定0.5 V可逆氢电极,Zn2SnO4 / SnO2的光电流达到0.62 mA / cm2。该指标是相同条件下纯Zn2SnO4光电流值的10倍,表明Zn2SnO4的光催化能力有所提高。证明了Zn2SnO4 / SnO2复合纳米材料在太阳能电池和光催化领域具有较好的光电性能和应用前景。Zn2SnO4 / SnO2的光电流达到0.62 mA / cm2。该指标是相同条件下纯Zn2SnO4光电流值的10倍,表明Zn2SnO4的光催化能力有所提高。证明了Zn2SnO4 / SnO2复合纳米材料在太阳能电池和光催化领域具有较好的光电性能和应用前景。Zn2SnO4 / SnO2的光电流达到0.62 mA / cm2。该指标是相同条件下纯Zn2SnO4光电流值的10倍,表明Zn2SnO4的光催化能力有所提高。证明了Zn2SnO4 / SnO2复合纳米材料在太阳能电池和光催化领域具有较好的光电性能和应用前景。
更新日期:2020-08-14
中文翻译:
Zn2SnO4基复合纳米材料的制备及光电性能
Zn型化合物Zn2SnO4在薄膜太阳能电池和光催化领域至关重要。本研究通过高温合成喷涂工艺合成了一种新型的纳米复合材料Zn2SnO4 / SnO2。测试了样品的电化学性能。此外,采用离子交换法以Zn2SnO4纳米晶体为基质,合成了不同比例的Zn2SnO4 / SnO2纳米异质结构。此外,还讨论了它们在模拟太阳光源的三电极系统中的光催化活性。测试了由溶剂热法获得的Zn2SnO4 / SnO2的光电性能。所得Zn2SnO4 / SnO2薄膜的光电流达到2.6μA,而Zn2SnO4薄膜的光电流仅为0.13μA。同时,荧光光谱测试证明Zn2SnO4和SnO2的重组减少了光生载流子的重组。离子交换法制得的Zn2SnO4 / SnO2的光催化试验表明,给定0.5 V可逆氢电极,Zn2SnO4 / SnO2的光电流达到0.62 mA / cm2。该指标是相同条件下纯Zn2SnO4光电流值的10倍,表明Zn2SnO4的光催化能力有所提高。证明了Zn2SnO4 / SnO2复合纳米材料在太阳能电池和光催化领域具有较好的光电性能和应用前景。Zn2SnO4 / SnO2的光电流达到0.62 mA / cm2。该指标是相同条件下纯Zn2SnO4光电流值的10倍,表明Zn2SnO4的光催化能力有所提高。证明了Zn2SnO4 / SnO2复合纳米材料在太阳能电池和光催化领域具有较好的光电性能和应用前景。Zn2SnO4 / SnO2的光电流达到0.62 mA / cm2。该指标是相同条件下纯Zn2SnO4光电流值的10倍,表明Zn2SnO4的光催化能力有所提高。证明了Zn2SnO4 / SnO2复合纳米材料在太阳能电池和光催化领域具有较好的光电性能和应用前景。