Bimetallic superalkali substitution in the CsPbBr3 perovskite: pseudocubic phases and tunable bandgap

2021 ◽  
Author(s):  
Celina Sikorska ◽  
Nicola Gaston
Keyword(s):  
Tunable Bandgap

Metal-free tellurene cocatalyst with tunable bandgap for enhanced photocatalytic hydrogen production

2021 ◽  
Vol 21 ◽  
pp. 100720
Author(s):  
B. Qiu ◽  
C. Wang ◽  
J. Wang ◽  
Z. Lin ◽  
N. Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Photocatalytic Hydrogen Production ◽  
Metal Free ◽  
Tunable Bandgap

Tunable bandgap in few-layer black phosphorus by electrical field

2D Materials ◽  
2017 ◽  
Vol 4 (3) ◽  
pp. 031009 ◽  
Author(s):  
Dong Li ◽  
Jin-Rong Xu ◽  
Kun Ba ◽  
Ningning Xuan ◽  
Mingyuan Chen ◽  
...  
Keyword(s):  
Black Phosphorus ◽  
Electrical Field ◽  
Tunable Bandgap

Thermochromism to tune the optical bandgap of a lead-free perovskite-type hybrid semiconductor for efficiently enhancing photocurrent generation

2017 ◽  
Vol 5 (38) ◽  
pp. 9967-9971 ◽  
Author(s):  
Weichuan Zhang ◽  
Zhihua Sun ◽  
Jing Zhang ◽  
Shiguo Han ◽  
Chengmin Ji ◽  
...  
Keyword(s):  
Semiconductor Material ◽  
Optical Bandgap ◽  
Lead Free ◽  
Tunable Bandgap ◽  
Photocurrent Generation ◽  
Photoelectric Properties ◽  
Perovskite Type

Here we report a new lead-free hybrid semiconductor material, (C16H20N2)SbBr5, in which thermochromism results in a wide tunable bandgap and superior photoelectric properties.

Tunable bandgap and ferromagnetism in sputtered epitaxial Sn1−xMgxO2 thin films

2012 ◽  
Vol 101 (18) ◽  
pp. 182406 ◽  
Author(s):  
Baozeng Zhou ◽  
Ping Wu ◽  
Wei Zhou
Keyword(s):  
Thin Films ◽  
Tunable Bandgap

scholarly journals Fringe structures and tunable bandgap width of 2D boron nitride nanosheets

2014 ◽  
Vol 5 ◽  
pp. 1186-1192 ◽  
Author(s):  
Peter Feng ◽  
Muhammad Sajjad ◽  
Eric Yiming Li ◽  
Hongxin Zhang ◽  
Jin Chu ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hydrogen Plasma ◽  
Hydrogen Gas ◽  
Spectral Lines ◽  
Bandgap Width ◽  
Raman Scattering Spectroscopy ◽  
Boron Nitride Nanosheets ◽  
Tunable Bandgap ◽  
Curved Structures ◽  
Digitally Controlled

We report studies of the surface fringe structures and tunable bandgap width of atomic-thin boron nitride nanosheets (BNNSs). BNNSs are synthesized by using digitally controlled pulse deposition techniques. The nanoscale morphologies of BNNSs are characterized by using scanning electron microscope (SEM), and transmission electron microscopy (TEM). In general, the BNNSs appear microscopically flat in the case of low temperature synthesis, whereas at high temperature conditions, it yields various curved structures. Experimental data reveal the evolutions of fringe structures. Functionalization of the BNNSs is completed with hydrogen plasma beam source in order to efficiently control bandgap width. The characterizations are based on Raman scattering spectroscopy, X-ray diffraction (XRD), and FTIR transmittance spectra. Red shifts of spectral lines are clearly visible after the functionalization, indicating the bandgap width of the BNNSs has been changed. However, simple treatments with hydrogen gas do not affect the bandgap width of the BNNSs.

Hot injection synthesis of Cu(In, Ga)Se2 nanocrystals with tunable bandgap

2018 ◽  
Vol 79 ◽  
pp. 450-456 ◽  
Author(s):  
M. Latha ◽  
R. Aruna Devi ◽  
S. Velumani
Keyword(s):  
Tunable Bandgap ◽  
Hot Injection

Dual-source vapor-processed blue-emissive cesium copper iodine microplatelets with high crystallinity and stability

2021 ◽  
Author(s):  
Jingjing Yan ◽  
Jingli Ma ◽  
Mengyao Zhang ◽  
Ruoting Yang ◽  
Xu Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Carrier Mobility ◽  
Processing Technique ◽  
Tunable Bandgap ◽  
Low Temperature Processing ◽  
Dual Source ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Halide Perovskites ◽  
Lead Halide

Recently, hybrid lead-halide perovskites have attracted extensive attention because of their unique optoelectronic characteristics, such as ambipolar charge transport, tunable bandgap, high carrier mobility, low-temperature processing technique, and so on....

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