TY - JOUR
T1 - Synthesis of two-dimensional β-Ga2O3 nanosheets for high-performance solar blind photodetectors
AU - Feng, Wei
AU - Wang, Xiaona
AU - Zhang, Jia
AU - Wang, Lifeng
AU - Zheng, Wei
AU - Hu, Pingan
AU - Cao, Wenwu
AU - Yang, Bin
PY - 2014/5/7
Y1 - 2014/5/7
N2 - Two-dimensional (2D) semiconductors are limited to graphene analogues of layered materials, so it is extremely challenging to fabricate 2D non-layered materials with thicknesses of only a few atomic layers. Here, we report the successful fabrication of 2D Ga2O3 from the corresponding GaSe nanosheets and a solar blind photodetector based on 2D Ga2O 3. The as-prepared 2D β-Ga2O3 is polycrystalline and has a thickness of less than 10 nm. Furthermore, we demonstrate a photodetector based on 2D β-Ga2O3, which show a sensitive, fast and stable photoresponse to ultraviolet radiation (254 nm). The responsivity, detectivity and external quantum efficiency of the photodetector are 3.3 A W-1, 4.0 × 1012 Jones and 1600%, respectively, indicating that the 2D Ga2O3 has great potential for application for solar-blind photodetectors. This journal is
AB - Two-dimensional (2D) semiconductors are limited to graphene analogues of layered materials, so it is extremely challenging to fabricate 2D non-layered materials with thicknesses of only a few atomic layers. Here, we report the successful fabrication of 2D Ga2O3 from the corresponding GaSe nanosheets and a solar blind photodetector based on 2D Ga2O 3. The as-prepared 2D β-Ga2O3 is polycrystalline and has a thickness of less than 10 nm. Furthermore, we demonstrate a photodetector based on 2D β-Ga2O3, which show a sensitive, fast and stable photoresponse to ultraviolet radiation (254 nm). The responsivity, detectivity and external quantum efficiency of the photodetector are 3.3 A W-1, 4.0 × 1012 Jones and 1600%, respectively, indicating that the 2D Ga2O3 has great potential for application for solar-blind photodetectors. This journal is
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U2 - 10.1039/c3tc31899k
DO - 10.1039/c3tc31899k
M3 - Article
AN - SCOPUS:84898065061
SN - 2050-7534
VL - 2
SP - 3254
EP - 3259
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 17
ER -