Improved Efficiency and Stability of Polymer Solar Cells Utilizing Two-Dimensional Reduced Graphene Oxide: Graphene Oxide Nanocomposites as Hole-Collection Material
文献类型：期刊论文
| 作者 | Chen, Lei; Du, Donghe; Sun, Kuan; Hou, Jianhui; Ouyang, Jianyong |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | DEC 24 2014 |
| 卷号 | 6期号:24页码:22334-22342 |
| 英文摘要 | Three 4,4-difluoro-4-bora-3a,4a-diaza-s-indancene (BODIPY)-based small molecule donors H-T-BO, Br-T-BO, and DIMER were synthesized and fully characterized. Although modification at the meso position has a subtle influence on the light-harvesting ability, energy levels, and phase sizes, it has a striking effect on the packing behavior in solid film as two-dimension grazing incidence X-ray diffraction (2D GIXRD) and X-ray diffraction (XRD) confirm. Br-T-BO exhibits better packing ordering than H-T-BO in pristine film, which is beneficial from reinforced intermolecular interaction from halogen atoms. However, when [6,6]-phenyl-C-71-butyric acid methyl ester (PC71BM) is blended, no diffraction patterns corresponding to the monomeric donor can be seen from the XRD data and both H-T-BO- and Br-T-BO-based blend films give a slightly blue-shifting absorption peak with respect to their neat ones, both of which imply destruction of the crystalline structure. As for DIMER, the enhancement of the intermolecular interaction arises not only from the expansion of the backbone but the steric pairing effect brought on by its twisted structure. When blended with PC71BM, the diffraction patterns of DIMER are, however, kept well and the absorption peak position remains unchanged, which indicates the ordered packing of DIMER is held well in blend film. In coincidence with the fact that packing ordering improves from H-T-BO to Br-T-BO and DIMER in pristine films and the ordered packing of DIMER even in blend film, DIMER-based devices show the highest and most balanced hole/electron mobility of 1.16 x 10(-3)/0.90 x 10(-3) cm(2) V-1 s(-1)with respect to Br-T-BO (4.71 x 10(-4)/2.09 x 10(-4) cm(2) V-1 s(-1)) and H-T-BO (4.27 x 10(-5)/1.00 x 10(-5) cm(2) V-1 s(-1)) based ones. The short-circuit current density of the three molecule-based cells follows the same trend from H-T-BO (6.80) to Br-T-BO (7.62) and then to DIMER (11.28 mA cm(-2)). Finally, the H-T-BO-, Br-T-BO-, and DIMER-based optimal device exhibits a power conversion efficiency of 1.56%, 1.96%, and 3.13%, respectively. |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38564]  |
| 专题 | 化学研究所_其它 |
| 推荐引用方式 GB/T 7714 | Chen, Lei,Du, Donghe,Sun, Kuan,et al. Improved Efficiency and Stability of Polymer Solar Cells Utilizing Two-Dimensional Reduced Graphene Oxide: Graphene Oxide Nanocomposites as Hole-Collection Material[J]. ACS APPLIED MATERIALS & INTERFACES,DEC ,6(24):22334-22342. |
| APA | Chen, Lei,Du, Donghe,Sun, Kuan,Hou, Jianhui,&Ouyang, Jianyong.(DEC ).Improved Efficiency and Stability of Polymer Solar Cells Utilizing Two-Dimensional Reduced Graphene Oxide: Graphene Oxide Nanocomposites as Hole-Collection Material.ACS APPLIED MATERIALS & INTERFACES,6(24),22334-22342. |
| MLA | Chen, Lei,et al."Improved Efficiency and Stability of Polymer Solar Cells Utilizing Two-Dimensional Reduced Graphene Oxide: Graphene Oxide Nanocomposites as Hole-Collection Material".ACS APPLIED MATERIALS & INTERFACES 6.24(DEC ):22334-22342. |
入库方式： OAI收割
来源：化学研究所
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