scholarly journals Black Phosphorus Quantum Dots Induced High‐Quality Perovskite Film for Efficient and Thermally Stable Planar Perovskite Solar Cells

Solar RRL ◽  
2019 ◽  
Vol 3 (8) ◽  
pp. 1900132 ◽  
Author(s):  
Weitao Yang ◽  
Jiehuan Chen ◽  
Xiaomei Lian ◽  
Jun Li ◽  
Fenfa Yao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Black Phosphorus ◽  
Thermally Stable ◽  
High Quality ◽  
Black Phosphorus Quantum Dots

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

2018 ◽  
Vol 6 (19) ◽  
pp. 8886-8894 ◽  
Author(s):  
Nianqing Fu ◽  
Chun Huang ◽  
Peng Lin ◽  
Mingshan Zhu ◽  
Tao Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Black Phosphorus ◽  
Selective Layer ◽  
Dual Functional ◽  
Black Phosphorus Quantum Dots ◽  
Electron Extraction

Dual-functional black phosphorus quantum dot electron selective layer was designed for plastic perovskite solar cells. The efficient electron extraction and improved perovskite film quality contributed to the reasonably high efficiency.

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

2017 ◽  
Vol 8 (3) ◽  
pp. 591-598 ◽  
Author(s):  
Wei Chen ◽  
Kaiwen Li ◽  
Yao Wang ◽  
Xiyuan Feng ◽  
Zhenwu Liao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Black Phosphorus ◽  
Hybrid Perovskite ◽  
Black Phosphorus Quantum Dots

Solution processed black phosphorus quantum dots for high performance silicon/organic hybrid solar cells

2018 ◽  
Vol 217 ◽  
pp. 92-95 ◽  
Author(s):  
Qingduan Li ◽  
Jianwei Yang ◽  
Chun Huang ◽  
Shaozhong Zeng ◽  
Jizhao Zou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Performance ◽  
Black Phosphorus ◽  
Hybrid Solar Cells ◽  
Solution Processed ◽  
Organic Hybrid ◽  
Black Phosphorus Quantum Dots

scholarly journals Black phosphorus quantum dots in inorganic perovskite thin films for efficient photovoltaic application

2020 ◽  
Vol 6 (15) ◽  
pp. eaay5661 ◽  
Author(s):  
Xiu Gong ◽  
Li Guan ◽  
Qingwei Li ◽  
Yan Li ◽  
Tao Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Perovskite Solar Cells ◽  
Lone Pair ◽  
Precursor Solution ◽  
Black Phosphorus ◽  
Thin Layers ◽  
Ambient Conditions ◽  
Inorganic Perovskite ◽  
Coulombic Repulsion ◽  
Black Phosphorus Quantum Dots

Black phosphorus quantum dots (BPQDs) are proposed as effective seed-like sites to modulate the nucleation and growth of CsPbI2Br perovskite crystalline thin layers, allowing an enhanced crystallization and remarkable morphological improvement. We reveal that the lone-pair electrons of BPQDs can induce strong binding between molecules of the CsPbI2Br precursor solution and phosphorus atoms stemming from the concomitant reduction in coulombic repulsion. The four-phase transition during the annealing process yields an α-phase CsPbI2Br stabilized by BPQDs. The BPQDS/CsPbI2Br core-shell structure concomitantly reinforces a stable CsPbI2Br crystallite and suppresses the oxidation of BPQDs. Consequently, a power conversion efficiency of 15.47% can be achieved for 0.7 wt % BPQDs embedded in CsPbI2Br film-based devices, with an enhanced cell stability, under ambient conditions. Our finding is a decisive step in the exploration of crystallization and phase stability that can lead to the realization of efficient and stable inorganic perovskite solar cells.

scholarly journals High-Quality Black Phosphorus Quantum Dots Fabricated via Microwave-Tailored Technology

Nanomaterials ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 139
Author(s):  
Kaixiang Du ◽  
Wen Yang ◽  
Shukang Deng ◽  
Xueming Li ◽  
Peizhi Yang
Keyword(s):  
Quantum Dots ◽  
High Mobility ◽  
Black Phosphorus ◽  
Layer By Layer ◽  
High Quality ◽  
Uniform Size ◽  
Tunable Bandgap ◽  
Good Crystallinity ◽  
Black Phosphorus Quantum Dots ◽  
Further Development

Black phosphorus quantum dots (BPQDs) have recently obtained great attention due to their high mobility and tunable bandgap features, which are beneficial for their potential application in photoelectronic devices. However, a precise synthesis of high-quality BPQDs is still a great challenge owing to the formation of an impurity phase when employing traditional methods. Herein, we demonstrate the scalable fabrication of BPQDs from mineralization-derived bulk black phosphorus (BP) single crystals by means of a microwave (MW)-assisted liquid-phase exfoliation method in ethanol. The primary results demonstrate that ethanol plays a crucial role in determining the final properties of BPQDs, such as their excellent tolerance to oxygen, good crystallinity, and uniform size. Furthermore, the mechanism behind the formation of BPQDs is proposed, revealing that a layer-by-layer disintegration process of bulk BP crystals under microwave-energy stimuli is responsible. This work may provide a novel path for the further development of BPQDs and corresponding devices.

An amorphous precursor route to the conformable oriented crystallization of CH3NH3PbBr3in mesoporous scaffolds: toward efficient and thermally stable carbon-based perovskite solar cells

2016 ◽  
Vol 4 (33) ◽  
pp. 12897-12912 ◽  
Author(s):  
Haining Chen ◽  
Xiaoli Zheng ◽  
Qiang Li ◽  
Yinglong Yang ◽  
Shuang Xiao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Thermally Stable ◽  
Stable Carbon ◽  
Amorphous Precursor ◽  
High Quality ◽  
Oriented Crystallization ◽  
Precursor Route ◽  
Carbon Based

An amorphous Pb–Br precursor was employed to prepare high-quality CH3NH3PbBr3with conformable oriented crystallization.

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