量子点
碳纤维
材料科学
光伏
纳米化学
兴奋剂
太阳能电池
纳米技术
能量转换效率
吸收(声学)
氮气
光电子学
光伏系统
化学
复合数
复合材料
有机化学
生态学
生物
作者
Hao Wang,Pengfei Sun,Shan Cong,Jiang Wu,Li Gao,Yun Wang,Xianwei Dai,Qinghua Yi,Guifu Zou
标识
DOI:10.1186/s11671-016-1231-1
摘要
Considering the environment protection, "green" materials are increasingly explored for photovoltaics. Here, we developed a kind of quantum dots solar cell based on nitrogen-doped carbon dots. The nitrogen-doped carbon dots were prepared by direct pyrolysis of citric acid and ammonia. The nitrogen-doped carbon dots' excitonic absorption depends on the N-doping content in the carbon dots. The N-doping can be readily modified by the mass ratio of reactants. The constructed "green" nitrogen-doped carbon dots solar cell achieves the best power conversion efficiency of 0.79 % under AM 1.5 G one full sun illumination, which is the highest efficiency for carbon dot-based solar cells.
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