A comparative study of the effects of Ag2S films prepared by MPD and HRTD methods on the performance of polymer solar cells
A comparative study of the effects of Ag2S films prepared by MPD and HRTD methods on the performance of polymer solar cells
复制标题
MPD和HRTD方法制备Ag2S薄膜对聚合物太阳能电池性能影响的对比研究
DOI：
10.1016/j.apsusc.2016.04.179
复制
发表时间：
2016
影响因子：
6.7
通讯作者：
Chong Chen
中科院分区：
文献类型：
--
作者：
Yong Zhai;Fumin Li;Lanyun Ling;Chong Chen
本工作采用分子前驱体分解法（MPD）和高分辨热扩散法（HRTD）在ITO玻璃上制备了Ag_2S纳米晶薄膜，用于有机太阳能电池（ITO/Ag_2S/P_3 HT：PCBM/MoO_3/Au），作为电子选择层和光吸收材料。比较了两种方法制备的Ag 2S薄膜的表面形貌、结构表征和光学性能，并研究了制备的Ag 2S薄膜对器件性能的影响。结果表明，与MPD法相比，HRTD法制备的Ag 2S薄膜具有更低的粗糙度和更好的均匀性。此外，ITO/Ag_2S（HRTD，n）/P_3HT：PCBM/MoO_3/Au电池中的电子和空穴具有更有效、更快速的输运能力，减少了电荷复合，从而提高了器件性能。ITO/Ag_2S（HRTD，50）/P3 HT：PCBM/MoO_3/Au电池的最高效率为3.21%，比ITO/Ag_2S（MPD，2）/P3 HT：PCBM/MoO_3/Au电池的最高效率高93%。
AbstractIn this work, the Ag2S nanocrystalline thin films are deposited on ITO glass via molecular precursor decomposition (MPD) method and newly developed HRTD method for organic solar cells (ITO/Ag2S/P3HT:PCBM/MoO3/Au) as an electron selective layer and a light absorption material. The surface morphology, structure characterization, and optical property of the Ag2S films prepared by these two methods were compared and the effect of the prepared Ag2S film on the device performance is investigated. It is found that the Ag2S films prepared by HRTD method have lower roughness and better uniformity than the corresponding films prepared by the MPD method. In addition, a more effective and rapid transporting ability for the electrons and holes in the ITO/Ag2S(HRTD,n)/P3HT:PCBM/MoO3/Au cells is found, which reduces the charge recombination, and thus, improves the device performance. The highest efficiency of 3.21% achieved for the ITO/Ag2S(HRTD, 50)/P3HT:PCBM/MoO3/Au cell is 93% higher than that of the ITO/Ag2S(MPD, 2)/P3HT:PCBM/MoO3/Au cell.