Black phosphorus quantum dots as dual-functional electron-selective materials for efficient plastic perovskite solar cells

Fu, Nianqing1; Huang, Chun2; Lin, Peng2; Zhu, Mingshan3; Li, Tao4; Ye, Mao2; Lin, Shenghuang4; Zhang, Guoge1; Du, Jun1; Liu, Chang5; Xu, Baomin5; Wang, Danyang6; Ke, Shanming2,7

2018-05-21

10.1039/c8ta01408f

Journal of Materials Chemistry A   影响因子和分区

2050-7488

2050-7496

Organic-inorganic hybrid metal halide perovskite solar cells (PSCs) have attracted tremendous research interest due to their high power conversion efficiency and simple fabrication. However, the exploitation of new electron-selective materials which can simultaneously tailor the quality of metal halide perovskite film for low-temperature-produced plastic organic-inorganic halide perovskite solar cells (PSCs) is of key importance but remains a great challenge. Herein, facile solution-processed black phosphorus quantum dots (BPQDs) with ambipolar conductivity are developed as dual-functional electron-selective layer (ESL) in plastic PSCs. The BPQD ESL plays crucial roles in both forming a cascade energy level for fast electron extraction and guiding the crystallization behavior of the perovskite to yield compact perovskite films with less traps, good crystallization and ordered orientation. The perovskite films deposited on the BPQD ESL exhibit excellent optoelectronic properties, and the resulting plastic planar perovskite solar cells possess a reasonably high efficiency of 11.26%. The 3.15-fold enhancement in efficiency arises from both the efficient electron extraction and suppressed radiative and trapassisted non-radiative recombination compared with the devices built on the bare ITO surface without an ESL. This work paves a promising way for developing novel electron-selective non-oxide materials for highly efficient solar cells.

SCI ; EI

英语

其他

Australian Research Council[DP170103514]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000434625200009

ROYAL SOC CHEMISTRY

20182205239516

Crystallization ; Electrons ; Extraction ; Metal halides ; Nanocrystals ; organic-inorganic materials ; Perovskite ; Perovskite solar cells ; Phosphorus ; Semiconductor quantum dots ; Temperature

Minerals:482.2 ; Thermodynamics:641.1 ; Solar Cells:702.3 ; Semiconductor Devices and Integrated Circuits:714.2 ; Nanotechnology:761 ; Chemical Operations:802.3 ; Chemical Products Generally:804

Web of Science

1.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
2.Shenzhen Univ, Coll Mat Sci & Engn, Guangdong Res Ctr Interfacial Engn Funct Mat, Shenzhen 518060, Peoples R China
3.Jinan Univ, Sch Environm, Guangzhou 510632, Guangdong, Peoples R China
4.Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China
5.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
6.Univ New South Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia
7.Nanchang Univ, Sch Mat Sci & Engn, Nanchang 330031, Jiangxi, Peoples R China

Fu, Nianqing,Huang, Chun,Lin, Peng,et al. Black phosphorus quantum dots as dual-functional electron-selective materials for efficient plastic perovskite solar cells[J]. Journal of Materials Chemistry A,2018,6(19):8886-8894.

Fu, Nianqing.,Huang, Chun.,Lin, Peng.,Zhu, Mingshan.,Li, Tao.,...&Ke, Shanming.(2018).Black phosphorus quantum dots as dual-functional electron-selective materials for efficient plastic perovskite solar cells.Journal of Materials Chemistry A,6(19),8886-8894.

Fu, Nianqing,et al."Black phosphorus quantum dots as dual-functional electron-selective materials for efficient plastic perovskite solar cells".Journal of Materials Chemistry A 6.19(2018):8886-8894.