采用水热法制备硼硫(B/S)共掺杂纳米二氧化钛(B-S-TiO2),并配制成浆料,利用丝网印刷技术在FTO导电玻璃上制备B-S-TiO2薄膜;用化学浴沉积(CBD)法制备了CdS量子点敏化B-S-TiO2薄膜电极,并用X射线衍射(XRD)、电子显微镜(TEM)、元素分析能谱(EDS)和紫外-可见光谱对其进行表征分析;结果显示:B/S共掺杂不会改变TiO2的晶型,掺杂后的TiO2吸收边带发生明显红移,吸收强度显著增强;同样用化学浴沉积的方法制备NiS工作电极,用改性的聚硫化物((CH3)4N)2S/((CH3)4N)2Sn)电解液,组装CdS量子点敏化硼硫(B/S)共掺杂纳米二氧化钛(B-S-TiO2)太阳能电池,并测试电池光电性能.测试结果表明,在AM1.5G的照射下,电池的能量转化效率(η)由3.21％增大到3.69％,提高了14.9％,电池获得高达(Voc)1.218 V的开路电压和3.42 mA/cm2的短路光电流(Jsc),以及高达88.7％的填充因子(ff).
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