Black Phosphorus Quantum Dots for Hole Extraction of Typical Planar Hybrid Perovskite Solar Cells

Chen, Wei1; Li, Kaiwen2; Wang, Yao3; Feng, Xiyuan1; Liao, Zhenwu3; Su, Qicong1; Lin, Xinnan2; He, Zhubing1

2017-02-02

10.1021/acs.jpclett.6b02843

Journal of Physical Chemistry Letters   影响因子和分区

1948-7185

Black phosphorus, famous as two-dimensional (2D) materials, shows such excellent properties for optoelectronic devices such as tunable direct band gap, extremely high hole mobility (300-1000 cm(2)/(V s)), and so forth. In this Letter, facile processed black phosphorus quantum dots (BPQDs) were successfully applied to enhance hole extraction at the anode side of the typical p-i-n planar hybrid perovskite solar cells, which remarkably improved the performance of devices with photon conversion efficiency ramping up from 14.10 to 16.69%. Moreover, more detailed investigations by c-AFM, SKPM, SEM, hole-only devices, and photon physics measurements discover further the hole extraction effect and work mechanism of the BPQDs, such as nucleation assistance for the growth of large grain size perovskite crystals, fast hole extraction, more efficient hole transfer, and suppression of energy-loss recombination at the anode interface. This work definitely paves the way for discovering more and more 2D materials with high electronic properties to be used in photovoltaics and optoelectronics.

SCI ; EI

英语

NI期刊

第一 ; 通讯

Southern University of Science and Technology (China)[FRG-SUSTC1501A-61] ; Southern University of Science and Technology (China)[FRG-SUSTC1501A-67]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical

WOS:000393443400009

AMER CHEMICAL SOC

20170603327829

Anodes ; Electronic properties ; Energy dissipation ; Energy gap ; Extraction ; Grain growth ; Hole mobility ; Nanocrystals ; Optoelectronic devices ; Perovskite ; Phosphorus ; Photons ; Semiconductor quantum dots ; Solar cells

Minerals:482.2 ; Energy Losses (industrial and residential):525.4 ; Solar Cells:702.3 ; Semiconducting Materials:712.1 ; Electron Tubes:714.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Atomic and Molecular Physics:931.3 ; Crystal Growth:933.1.2

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Key Lab Full Spectral Solar Elect Genera, Dept Mat Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
2.Peking Univ, Sch Elect & Comp Engn, Shenzhen Key Lab Integrated Microsyst, Shenzhen Grad Sch, 2199 Lishui Rd, Shenzhen 518055, Guangdong, Peoples R China
3.South Univ Sci & Technol China, Mat Characterizat & Preparat Ctr, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China

Chen, Wei,Li, Kaiwen,Wang, Yao,et al. Black Phosphorus Quantum Dots for Hole Extraction of Typical Planar Hybrid Perovskite Solar Cells[J]. Journal of Physical Chemistry Letters,2017,8(3):591-598.

Chen, Wei.,Li, Kaiwen.,Wang, Yao.,Feng, Xiyuan.,Liao, Zhenwu.,...&He, Zhubing.(2017).Black Phosphorus Quantum Dots for Hole Extraction of Typical Planar Hybrid Perovskite Solar Cells.Journal of Physical Chemistry Letters,8(3),591-598.

Chen, Wei,et al."Black Phosphorus Quantum Dots for Hole Extraction of Typical Planar Hybrid Perovskite Solar Cells".Journal of Physical Chemistry Letters 8.3(2017):591-598.