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The Effect of Transparent Conductive Oxide Substrate on the Efficiency of SnGe-perovskite Solar Cells
摘要： The efficiency of Sn-perovskite solar cells has been dramatically improved by adopting the inverted structure solar cells and is expected to reach the efficiency of lead-based perovskite solar cell. We have observed fluctuations in the efficiency of the same perovskite material due to the type of TCO substrates. In this study, we investigated the influence of TCO substrates on the solar cell characteristics of SnGe-perovskite solar cells. It was found that the efficiency of the SnGe-perovskite solar cell is better with fluorine-doped tin oxide (FTO) substrate (9.24%) than indium-doped tin oxide (ITO) substrate (7.72%). The improvement of the efficiency of the cell with FTO substrate is contributed by the improvement in the short-circuit current Jsc and Voc. The high transmittance of FTO substrate enhanced the Jsc while the Voc is influenced by the Fermi level of the transparent conductive oxide film. Although there is a difference in the surface roughness between TCO substrates, there is no direct influence on the device performance that can be observed.
关键词： Fluorine-doped tin oxide,Transparent conductive film,Inverted structure,Indium-doped tin oxide,Perovskite solar cells,Pb free
更新于2025-09-12 10:27:22
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Spray deposited indium doped tin oxide thin films for organic solar cell application
摘要： Highly conducting and transparent undoped and indium doped tin oxide (SnO2:In) thin films are prepared by spray technique at different doping concentration of Indium (In). The X-ray diffraction pattern of SnO2:In thin films are confirmed the tetragonal phase of SnO2. The resistivity of SnO2:In film is increased with increased the doping concentration of In due to the effect of ionized impurity and intragrain scattering mobility. The optimized (SnO2:In) thin film is used as a photo anode in the organic solar cells (OSC) of configuration of SnO2:In/PDOT:PSS/P3HT:PCBM/Al. The photo conversion efficiency of OSC is obtained 1.06 % for SnO2 layer and it was observed 0.56% for In doped SnO2 based photoanode.
关键词： Spray technique,Indium doped tin oxide,Organic solar cell
更新于2025-09-12 10:27:22
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Investigating the electrochemical behaviour and detection of uric acid on ITO electrodes modified with differently doped N-graphene films
摘要： Sensitive and selective electrochemical sensors based on indium-doped tin oxide electrodes (ITO) modified with differently nitrogen-doped graphene (NGr) films were successfully developed for the individual and simultaneous determination of uric acid (UA) in the presence of ascorbic acid (AA). The influence of the contents of various N-configurations on the detection of UA on the NGr/ITO based sensors is herein reported for the first time. The contents of various N-configurations on the NGr/ITO electrodes displayed varying promotional effects of the electro-oxidation of UA; attributed to the unique properties of the NGr films arising from the N-configurations. In particular, three N-doped materials prepared with varying amount of graphitic-N, pyrrolic-N, and pyridinic-N allowed the individual detection of UA, in the presence of AA, in the concentration range from 2-320 μM with the detection limits of 0.043 μM to 0.19 μM. Finally, the NGr/ITO-based sensors exhibited successful simultaneous detection of UA and AA, depicting detection limits of 0.051 - 0.19 μM and 0.93 – 5.1 μM within the concentration ranges of 6 - 280 μM and 8 – 800 μM, for the detection of UA and AA, respectively. The study provided insight into an understanding as to how the different contents of N-configurations influenced the electrocatalytic activity of NGr/ITO electrodes for the individual and simultaneous detection of uric acid.
关键词： nitrogen-doped graphene,uric acid,indium-doped tin oxide,ascorbic acid,electrochemical sensors
更新于2025-09-09 09:28:46