Sonochemical functionalization of the low-dimensional surface oxide of Galinstan for heterostructured optoelectronic applications

2019 ◽  
Vol 7 (19) ◽  
pp. 5584-5595 ◽  
Author(s):  
Mohammad Karbalaei Akbari ◽  
Zhenyin Hai ◽  
Zihan Wei ◽  
Ranjith K. Ramachandran ◽  
Christophe Detavernier ◽  
...  

The functionalized low-dimensional surface oxides of liquid metal Galinstan were employed as the main component of heterostructured optoelectronic devices.

2022 ◽  
Vol 26 ◽  
pp. 101265
Author(s):  
Xinpeng Wang ◽  
Hongzhang Wang ◽  
Kang Sun ◽  
Wanjun Li ◽  
Xuelin Wang ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-2 ◽  
Author(s):  
Wei Lu ◽  
Hong Chen ◽  
Weida Hu ◽  
Guofeng Song ◽  
Wen Lei ◽  
...  

2020 ◽  
Author(s):  
Brenda Vargas ◽  
Diana T. Reyes-Castillo ◽  
Eduardo Coutino-Gonzalez ◽  
Citlali Sánchez-Aké ◽  
Carlos Ramos ◽  
...  

Halide perovskites offer great promise for optoelectronic applications, but stability issues continue to hinder its implementation and long-term stability. The stability of all-inorganic halide perovskites and the inherent quantum confinement of low dimensional perovskites can be harnessed to synthesize materials with high PL efficiency. An example of such materials is the recently reported new family of layered double perovskites, Cs4Mn1−xCdxBi2Cl12. Herein, we report a new synthetic procedure that enhances the maximum PLQY of this family materials to up 79.5%, a 20% enhancement from previous reports and the highest reported for a Mn-doped halide perovskite. Importantly, stability tests demonstrate that these materials are very stable towards humidity, UV irradiation, and temperature. Finally, we investigated the photophysics, the effects of magnetic coupling and temperature in the PL efficiency and proposed a mechanism for the emission process. Our results highlight the potential of this family of materials and related layered all-inorganic perovskites for solid-state lighting and optoelectronic applications<p></p>


Author(s):  
A. J. Atanacio ◽  
Tad Bak ◽  
Dewei Chu ◽  
Mihail Ionescu ◽  
Janusz Nowotny

2020 ◽  
Vol 6 (7) ◽  
pp. eaay5225 ◽  
Author(s):  
Basudev Pradhan ◽  
Sonali Das ◽  
Jinxin Li ◽  
Farzana Chowdhury ◽  
Jayesh Cherusseri ◽  
...  

Organic-inorganic halide perovskite quantum dots (PQDs) constitute an attractive class of materials for many optoelectronic applications. However, their charge transport properties are inferior to materials like graphene. On the other hand, the charge generation efficiency of graphene is too low to be used in many optoelectronic applications. Here, we demonstrate the development of ultrathin phototransistors and photonic synapses using a graphene-PQD (G-PQD) superstructure prepared by growing PQDs directly from a graphene lattice. We show that the G-PQDs superstructure synchronizes efficient charge generation and transport on a single platform. G-PQD phototransistors exhibit excellent responsivity of 1.4 × 108 AW–1 and specific detectivity of 4.72 × 1015 Jones at 430 nm. Moreover, the light-assisted memory effect of these superstructures enables photonic synaptic behavior, where neuromorphic computing is demonstrated by facial recognition with the assistance of machine learning. We anticipate that the G-PQD superstructures will bolster new directions in the development of highly efficient optoelectronic devices.


Author(s):  
Hongcheng Ruan ◽  
Yu Huang ◽  
Yuqian Chen ◽  
Fuwei Zhuge

Two-dimensional (2D) materials are attracting explosive attention for their intriguing potential in versatile applications, covering optoelectronics, electronics, sensors, etc. An attractive merit of 2D materials is their viable van der Waals (VdW) stacking in artificial sequence, thus forming different atomic arrangements in vertical direction and enabling unprecedented tailoring of material properties and device application. In this chapter, we summarize the latest progress in assembling VdW heterostructures for optoelectronic applications by beginning with the basic pick-transfer method for assembling 2D materials and then discussing the different combination of 2D materials of semiconductor, conductor, and insulator properties for various optoelectronic devices, e.g., photodiode, phototransistors, optical memories, etc.


Sign in / Sign up

Export Citation Format

Share Document