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Yuelong Li,Linchuan Ma,유영석,Guangcai Wang,Xiaodan Zhang,고민재 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.73 No.-
A thin TiO2 layer is introduced by atomic layer deposition (ALD) onto the surface of TiO2 host-particles atlow-temperature, which serves as binding layer to enhance the interconnection of TiO2 hostnanoparticlesof photoelectrode or adhesion of photoelectrode with substrate. The power conversionefficiency of 4.63%, corresponding to 50% enhancement compared with 3.09% of reference cell, isachieved from ALD-treated cell. The electrochemical impedance spectroscopy confirms the reducedinternal resistance and much longer electron lifetime in ALD-treated cell. These results suggest that ALDtechnique can be used as an effective and precise technique to construct efficient dye-sensitized solarcells at low-temperature.
Li, Yuelong,Ma, Linchuan,Yoo, Youngseok,Wang, Guangcai,Zhang, Xiaodan,Ko, Min Jae Elsevier 2019 Journal of industrial and engineering chemistry Vol.73 No.-
<P><B>Abstract</B></P> <P>A thin TiO<SUB>2</SUB> layer is introduced by atomic layer deposition (ALD) onto the surface of TiO<SUB>2</SUB> host-particles at low-temperature, which serves as binding layer to enhance the interconnection of TiO<SUB>2</SUB> host-nanoparticles of photoelectrode or adhesion of photoelectrode with substrate. The power conversion efficiency of 4.63%, corresponding to 50% enhancement compared with 3.09% of reference cell, is achieved from ALD-treated cell. The electrochemical impedance spectroscopy confirms the reduced internal resistance and much longer electron lifetime in ALD-treated cell. These results suggest that ALD technique can be used as an effective and precise technique to construct efficient dye-sensitized solar cells at low-temperature.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Enhanced interconnection of TiO<SUB>2</SUB> nanoparticles by ALD-introduced thin TiO<SUB>2</SUB> layer. </LI> <LI> 50% increment in cell efficiency obtained in comparison with reference cells. </LI> <LI> Reduced internal resistance and enlarged electron life time confirmed by EIS. </LI> <LI> Potential of applying ALD to flexible devices on thermal-sensitive substrates. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Thin titania layer is prepared by atomic layer deposition (ALD) to enhance the interconnection of host titania nanoparticles for better performance of dye solar cells.</P> <P>[DISPLAY OMISSION]</P>
Qingwei Li*,Fang Chen,Weili Zhao,Mingxiu Xu,Benjie Fang,Yuelong Zhang,Liping Duo,Yuqi Jin,Fengting Sang 대한화학회 2007 Bulletin of the Korean Chemical Society Vol.28 No.10
Using solid inorganic peroxides (including Li2O2, Na2O2, SrO2 and BaO2) as starting materials, three reaction paths for singlet oxygen (1O2) production were developed and studied. Their 1O2 emission spectra in the near-IR region and visible region from these reaction paths were simultaneously recorded by a near-IR sensitive Optical Multichannel Analyzer and a visible sensitive Optical Spectrum Analyzer, respectively. The comparison of their 1O2 emission spectra indicated that: (1) in term of the efficiency for 1O2 production, the gas-liquid-solid reaction path (in which Cl2 or HCl and H2O reacted with the solid inorganic peroxides suspension in CCl4) was prior to the gas-solid reaction path (in which Cl2 or HCl reacted with the solid inorganic peroxides suspension in CCl4), but was inferior to the gas-liquid reaction path (in which Cl2 or HCl reacted with the solid inorganic peroxides solution in H2O or D2O); (2) the alkali metal peroxides (such as Li2O2 and Na2O2) was prior to the alkaline earth metal peroxides (such as SrO2 and BaO2) as the solid reactants, and Cl2 was favorable than HCl as the gas reactant in efficiency for 1O2 production in these reaction paths.
Li, Qingwei,Chen, Fang,Zhao, Weili,Xu, Mingxiu,Fang, Benjie,Zhang, Yuelong,Duo, Liping,Jin, Yuqi,Sang, Fengting Korean Chemical Society 2007 Bulletin of the Korean Chemical Society Vol.28 No.10
Using solid inorganic peroxides (including Li2O2, Na2O2, SrO2 and BaO2) as starting materials, three reaction paths for singlet oxygen (1O2) production were developed and studied. Their 1O2 emission spectra in the near- IR region and visible region from these reaction paths were simultaneously recorded by a near-IR sensitive Optical Multichannel Analyzer and a visible sensitive Optical Spectrum Analyzer, respectively. The comparison of their 1O2 emission spectra indicated that: (1) in term of the efficiency for 1O2 production, the gasliquid- solid reaction path (in which Cl2 or HCl and H2O reacted with the solid inorganic peroxides suspension in CCl4) was prior to the gas-solid reaction path (in which Cl2 or HCl reacted with the solid inorganic peroxides suspension in CCl4), but was inferior to the gas-liquid reaction path (in which Cl2 or HCl reacted with the solid inorganic peroxides solution in H2O or D2O); (2) the alkali metal peroxides (such as Li2O2 and Na2O2) was prior to the alkaline earth metal peroxides (such as SrO2 and BaO2) as the solid reactants, and Cl2 was favorable than HCl as the gas reactant in efficiency for 1O2 production in these reaction paths.
Huayuan Lin,Qiqi Huang,Xiaoquan Guo,Ping Liu,Weilian Liu,Yuelong Zou,Shuliang Zhu,Guangfu Deng,Jun Kuang,Caiying Zhang,Huabin Cao,Guoliang Hu 대한수의학회 2015 Journal of Veterinary Science Vol.16 No.4
To assess relationships between xanthine oxidase (XOD) and nephropathogenic infectious bronchitis virus (NIBV) infection, 240 growing layers (35 days old) were randomly divided into two groups (infected and control) of 120 chickens each. Each chicken in the control and infected group was intranasally inoculated with 0.2 mL sterile physiological saline and virus, respectively, after which serum antioxidant parameters and renal XOD mRNA expression in growing layers were evaluated at 8, 15 and 22 days post-inoculation (dpi). The results showed that serum glutathione peroxidase and superoxide dismutase activities in the infected group were significantly lower than in the control group at 8 and 15 dpi (p < 0.01), while serum malondialdehyde concentrations were significantly higher (p < 0.01). The serum uric acid was significantly higher than that of the control group at 15 dpi (p < 0.01). In addition, the kidney mRNA transcript level and serum activity of XOD in the infected group was significantly higher than that of the control group at 8, 15 and 22 dpi (p < 0.05). The results indicated that NIBV infection could cause the increases of renal XOD gene transcription and serum XOD activity, leading to hyperuricemia and reduction of antioxidants in the body.