Here we show that coating TiO 2 nanorods with Nb 2 O 5 increases the photocurrent and conversion efficiency of the DSC. However, impedance spectroscopy results indicate that neither recombination is reduced by the coating nor the conduction band position is moved.

2011年9月15日 · Vertically aligned bundles of Nb2O5 nanocrystals were fabricated by pulsed laser deposition (PLD) and tested as a photoanode material in dye-sensitized solar cells (DSSC). They were characterized using scanning and transmission electron microscopies, optical absorption spectroscopy (UV–vis), and incident-photon-to-current efficiency (IPCE ...

2024年6月1日 · Thermal properties investigated by DSC together with structural investigations by Raman spectroscopy allowed to understand the structural effect of Nb 2 O 5 incorporation in the potassium phosphate glass network.

2012年4月18日 · Here, we demonstrate that niobium pentoxide (Nb 2 O 5) is an ideal candidate for increasing the efficiencies of dye-sensitized solar cells (DSSCs). The key lies in developing a Nb 2 O 5 crisscross nanoporous network, using our …

Differential scanning calorimetry (DSC) shows an endothermic peak ends at this point corresponding to the end of loss of crystal water. The first obvious exothermic peak at ~570 o C...

2011年9月26日 · Synthesized niobium oxides (Nb2O5 and NbO2) were applied for the first time as counter electrodes (CEs) in dye-sensitized solar cells (DSCs). The DSC using NbO2 CE showed a higher power conversion efficiency of 7.88%, compared with …

TG–DSC results indicated that amorphous Nb 2 O 5 appeared at 460 ∘ C. XRD results indicated that amorphous Nb 2 O 5 transformed into pseudo-hexagonal phase and crystallization degree has an increasing trend with an increase of temperature. UV–vis and Raman spectra results reflected the significant variations of optical property and atomic ...

2019年1月1日 · In this chapter, attention is given to the application of Nb 2 O 5 thin films in DSSCs. Their preparation methods, morphologic, optical, and electronic properties are summarized and an overview of their application with DSSCs is provided.

在本研究中，Nb 2 O 5 是通过溶胶-凝胶法制备的。 通过热分析（TG-DSC）、X射线衍射（XRD）、紫外-可见光谱和拉曼光谱研究了结晶过程。 TG-DSC 结果表明无定形 Nb 2 O 5 出现在 460 ∘ C. XRD结果表明，随着温度的升高，非晶Nb 2 O 5 转变为拟六方相，结晶度有增加的趋势。 UV-vis 和拉曼光谱结果反映了该过程中光学性质和原子结构的显着变化。 Nb 2 O 5 原子排列由短程有序转变为中程有序，再到长程有序。 随着温度升高，原子通过结构单元的连接转变为长 …

TG–DSC results indicated that amorphous Nb2O5 appeared at 460∘C. XRD results indicated that amorphous Nb2O5 transformed into pseudo-hexagonal phase and crystallization degree has an increasing trend with an increase of temperature. UV–vis and Raman spectra results reflected the significant variations of optical