Synthesis of TiO(2)/WO(3)/MnO(2) composites and high-throughput screening for their photoelectrical properties.
On the basis of the idea of equilateral ingredient triangle, a material library of the TiO(2)/WO(3)/MnO(2) composite material system was designed, which consisted of 66 ingredient points. Each point in the library corresponded with a device. To fabricate the device, the technology of screen printing was used. The pastes which were suitable for this technology were prepared by ball milling. After we printed the pastes onto the alumina substrate which had been preprinted with Au interdigital electrodes, these printed samples were sintered at 550 degrees C for 2 h in air. The photocurrent of each device under different light sources was measured respectively using a high-throughput screening system. The largest photocurrent was observed when the mole ratio of TiO(2)/WO(3) was 2/8 in the composite system. X-ray diffraction (XRD) was used to investigate the phase structure of the powder which had excellent photoelectric response.
State Key Laboratory of Material Processing and Die & Mould Technology, Nanomaterial and Smart Sensor Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
Zhijun
Z
Zou
Yuan
Y
Liu
Huayao
H
Li
Yichuan
Y
Liao
Changsheng
C
Xie
D004563:Electrochemistry; D057166:High-Throughput Screening Assays; D017895:Manganese Compounds / Q000737:chemistry / Q000528:radiation effects; D010087:Oxides / Q000737:chemistry / Q000528:radiation effects; D055668:Photochemical Processes; D014025:Titanium / Q000737:chemistry / Q000528:radiation effects; D014414:Tungsten / Q000737:chemistry / Q000528:radiation effects
D017895:Manganese Compounds; D010087:Oxides; C009495:titanium dioxide; C511604:tungsten oxide; D014025:Titanium; C016552:manganese dioxide; D014414:Tungsten