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Graphdiyne-modified cross-linkable fullerene as an efficient electron-transporting layer in organometal halide perovskite solar cells
Li, M; Wang, ZK; Kang, T; Yang, YG; Gao, XY; Hsu, CS; Li, YL; Liao, LS
2018
Source PublicationNANO ENERGY
ISSN2211-2855
Volume43Pages:47-54
Subtype期刊论文
AbstractInterface engineering resulting in good contact, enhanced transport capability, and matched energy levels is indispensable and critical for the development of high-performance planar perovskite solar cells (PSCs). Here, we report an excellent electron-transporting layer (ETL) that can simultaneously enhance the stability and efficiency of n-i-p planar PSCs. Large pi-conjugated graphdiyne (GD) was introduced into cross-linkable fullerene [6,6]-phenyl-C61-butyric styryl dendron ester (PCBSD) to improve the film orientation. Raman spectroscopy and 2D grazing incidence X-ray diffraction (GIXRD) measurements revealed that a strong pi-pi stacking interaction occurred between GD and cross-linkable PCBSD (C-PCBSD), generating a face-on stacked composite film. The orientated C-PCBSD: GD films was favorable for the growth and crystallization of the subsequent perovskite films and provided the merits of superior electron mobility, efficient charge extraction and energy-level tailoring. In addition, the thermally annealed C-PCBSD: GD film provided an adhesive film network with sufficient solvent resistance. Consequently, the perovskite devices delivered a power conversion efficiency of 20.19% with obviously improved cell stability. This indicates a potential application of GD-modified cross-linkable fullerene as an ETL in n-i-p structure PSCs. The finding opens a new route to deposit the fullerene films with ordered orientation by 2D materials with large pi-conjugation, and thus to control the subsequent perovskite crystallization.
KeywordHighly Efficient Charge-transport Extraction Layer Performance Crystallization Carbon Deposition Interlayer Lengths Growth
DOI10.1016/j.nanoen.2017.11.008
Indexed BySCI
Language英语
WOS IDWOS:000419832100006
Citation statistics
Cited Times:38[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29030
Collection中科院上海应用物理研究所2011-2018年
Affiliation1.Li, M
2.Wang, ZK
3.Kang, T
4.Yang, YG
5.Gao, XY
6.Hsu, CS
7.Li, YL
8.Liao, LS
Recommended Citation
GB/T 7714
Li, M,Wang, ZK,Kang, T,et al. Graphdiyne-modified cross-linkable fullerene as an efficient electron-transporting layer in organometal halide perovskite solar cells[J]. NANO ENERGY,2018,43:47-54.
APA Li, M.,Wang, ZK.,Kang, T.,Yang, YG.,Gao, XY.,...&Liao, LS.(2018).Graphdiyne-modified cross-linkable fullerene as an efficient electron-transporting layer in organometal halide perovskite solar cells.NANO ENERGY,43,47-54.
MLA Li, M,et al."Graphdiyne-modified cross-linkable fullerene as an efficient electron-transporting layer in organometal halide perovskite solar cells".NANO ENERGY 43(2018):47-54.
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