Origin of Hysteresis in CH3NH3PbI3 Perovskite Thin Films
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DOI: 10.1002/adfm.201701924
Abstract: Organic–inorganic hybrid perovskite solar cells are attracting the attention of researchers owing to the high level of performance they exhibit in photovoltaic device applications. However, the attainment of an even higher level of performance is… read more here.
Keywords: thin films; origin hysteresis; hysteresis; perovskite thin ... See more keywords
Influence of Bulky Organo‐Ammonium Halide Additive Choice on the Flexibility and Efficiency of Perovskite Light‐Emitting Devices
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DOI: 10.1002/adfm.201802060
Abstract: Perovskite light-emitting diodes (LEDs) require small grain sizes to spatially confine charge carriers for efficient radiative recombination. As grain size decreases, passivation of surface defects becomes increasingly important. Additionally, polycrystalline perovskite films are highly brittle… read more here.
Keywords: perovskite light; ammonium halide; bulky organo; organo ammonium ... See more keywords
Improving Performance of Perovskite Solar Cells Using [7]Helicenes with Stable Partial Biradical Characters as the Hole‐Extraction Layers
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DOI: 10.1002/adfm.201808625
Abstract: Organic–inorganic hybrid perovskites have realized a high power conversion efficiency (PCE) in both n–i–p and p–i–n device configurations. However, since the p–i–n structure exempts the sophisticated processing of charge‐transporting layers, it seems to possess better… read more here.
Keywords: perovskite; extraction; partial biradical; perovskite solar ... See more keywords
Ultrastable and Reversible Fluorescent Perovskite Films Used for Flexible Instantaneous Display
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DOI: 10.1002/adfm.201900730
Abstract: All‐inorganic halide perovskite materials are regarded as promising materials in information display applications owing to their tunable color, narrow emission peak, and easy processability. However, the photoluminescence (PL) stability of halide perovskite films is still… read more here.
Keywords: perovskite; perovskite films; cspbbr3 cspb2br5; display ... See more keywords
Short‐Chain Ligand‐Passivated Stable α‐CsPbI3 Quantum Dot for All‐Inorganic Perovskite Solar Cells
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DOI: 10.1002/adfm.201900991
Abstract: Cubic phase CsPbI3 (α‐CsPbI3) perovskite quantum dots (QDs) have received extensive attention due to their all‐inorganic composition and suitable band gap (1.73 eV). However, α‐CsPbI3 QDs might convert to δ‐CsPbI3 (orthorhombic phase with indirect band… read more here.
Keywords: ligand passivated; perovskite; chain ligand; short chain ... See more keywords
Substrate‐Dependent Spin–Orbit Coupling in Hybrid Perovskite Thin Films
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DOI: 10.1002/adfm.201904046
Abstract: Solution‐processing hybrid metal halide perovskites are promising materials for developing flexible thin‐film devices. This work reports the substrate effects on the spin–orbit coupling (SOC) in perovskite films through thermal expansion under thermal annealing. X‐ray diffraction… read more here.
Keywords: spin orbit; perovskite; glass substrates; perovskite thin ... See more keywords
A Simple Way to Simultaneously Release the Interface Stress and Realize the Inner Encapsulation for Highly Efficient and Stable Perovskite Solar Cells
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DOI: 10.1002/adfm.201905336
Abstract: The mixed halide perovskites have become famous for their outstanding photoelectric conversion efficiency among new‐generation solar cells. Unfortunately, for perovskites, little effort is focused on stress engineering, which should be emphasized for highly efficient solar… read more here.
Keywords: perovskite; stress; perovskite solar; efficiency ... See more keywords
High‐Performance CsPbIxBr3‐x All‐Inorganic Perovskite Solar Cells with Efficiency over 18% via Spontaneous Interfacial Manipulation
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DOI: 10.1002/adfm.202000457
Abstract: Cesium‐based all‐inorganic halide perovskites solar cells (PSCs) have recently attracted increasing attention. Currently, due to the existence of high defects density and unoptimized interfacial morphology, “state‐of‐the‐art” performances of all‐inorganic PSCs are still far away from… read more here.
Keywords: perovskite; spontaneous interfacial; efficiency; solar cells ... See more keywords
An Emerging Lead‐Free Double‐Perovskite Cs2AgFeCl6:In Single Crystal
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DOI: 10.1002/adfm.202002225
Abstract: The recently emerged hybrid lead halide perovskites demonstrate low‐cost fabrication and noteworthy performance, but they have intrinsically unstable properties and contain toxic Pb in a soluble form. Herein, a thus far unreported highly stable lead‐free… read more here.
Keywords: perovskite; emerging lead; free double; cs2agfecl6 ... See more keywords
Dual Interfacial Modification Engineering with 2D MXene Quantum Dots and Copper Sulphide Nanocrystals Enabled High‐Performance Perovskite Solar Cells
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DOI: 10.1002/adfm.202003295
Abstract: The performance of perovskite solar cells (PSCs) strongly depends on the electron transport layer (ETL), perovskite absorber, hole transport layer (HTL), and their interfaces. Herein, the first approach to utilize ultrathin 2D titanium‐carbide MXenes (Ti3C2Tx… read more here.
Keywords: perovskite; performance perovskite; spectroscopy; perovskite solar ... See more keywords
Interfacial Structure and Composition Managements for High‐Performance Methylammonium‐Free Perovskite Solar Cells
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DOI: 10.1002/adfm.202005846
Abstract: The methylammonium (MA)‐free perovskite solar cells (PSCs) have drawn broad attention due to their excellent thermostability. However, the efficiency of these devices is inferior to most state‐of‐the‐art PSCs. Herein, the photovoltaic performance of the MA‐free… read more here.
Keywords: perovskite; performance; perovskite solar; free perovskite ... See more keywords