Highly stable and flexible photodetector arrays based on low dimensional CsPbBr3 microcrystals and on-paper pencil-drawn electrodes

2017 ◽  
Vol 5 (30) ◽  
pp. 7441-7445 ◽  
Author(s):  
Fei Cao ◽  
Dejian Yu ◽  
Xiaoming Li ◽  
Ying Zhu ◽  
Zhiguo Sun ◽  
...  

We propose a novel configuration of photodetectors (PDs) using solution-prepared low dimensional CsPbBr3 microcrystals, pencil-drawn graphite and paper as the active materials, electrodes and substrates, respectively.

2020 ◽  
Vol 8 (15) ◽  
pp. 2000370
Author(s):  
Qi Pan ◽  
Sisi Chen ◽  
Meng Su ◽  
Pengwei Li ◽  
Zeying Zhang ◽  
...  

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2903
Author(s):  
Yan Li ◽  
Ye Zhang

Low-dimensional nanomaterials have attracted considerable attention for next-generation flexible energy devices owing to their excellent electrochemical properties and superior flexibility. Herein, uniform Tellurium nanotubes (Te NTs) were prepared through a facile hydrothermal method, and then a flexible and freestanding electrode was fabricated with Te NTs as active materials and a small amount of nanofibrillated celluloses (NFCs) as a flexible matrix through a vacuum filtration method without adding extra conductive carbon or a binder. The resulting Te-based electrode exhibits a high volumetric capacity of 1512 mAh cm−3 at 200 mA g−1, and delivers admirable cyclic stability (capacity retention of 104% over 300 cycles) and excellent rate performance (833 mAh cm−3 at 1000 mA g−1), which benefits from the unique structure and intrinsically superior conductivity of Te NTs. After bending 50 times, the Te-based electrode delivers a desirable volumetric capacity of 1117 mAh cm−3, and remains 93% of initial capacity after 100 cycles. The results imply that the Te-based electrode exhibits excellent electrochemical properties and superior flexibility simultaneously, which can serve as a potential candidate for the flexible lithium batteries.


Author(s):  
Marta Lewicka ◽  
L. Mahadevan ◽  
Mohammad Reza Pakzad

We provide a derivation of the Föppl-von Kármán equations for the shape of and stresses in an elastic plate with incompatible or residual strains. These might arise from a range of causes: inhomogeneous growth, plastic deformation, swelling or shrinkage driven by solvent absorption. Our analysis gives rigorous bounds on the convergence of the three-dimensional equations of elasticity to the low-dimensional description embodied in the plate-like description of laminae and thus justifies a recent formulation of the problem to the shape of growing leaves. It also formalizes a procedure that can be used to derive other low-dimensional descriptions of active materials with complex non-Euclidean geometries.


2019 ◽  
Vol 7 (43) ◽  
pp. 13402-13409 ◽  
Author(s):  
Qishuo Tan ◽  
Guo Ye ◽  
Yan Zhang ◽  
Xiaojia Du ◽  
Haining Liu ◽  
...  

Here, we report a vacuum-filtration method to produce centimeter-scale continuous polycrystalline inorganic perovskite (CsPbBr3) film directly on flexible porous substrates in one step, and demonstrate large-area flexible photodetector arrays.


2018 ◽  
Vol 31 (3) ◽  
pp. 1805913 ◽  
Author(s):  
Wenqiang Wu ◽  
Xiandi Wang ◽  
Xun Han ◽  
Zheng Yang ◽  
Guoyun Gao ◽  
...  

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