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Synthesis and Efficient Phase Transfer of CdSe Nanoparticles for Hybrid Solar Cell Applications

机译:混合太阳能电池应用CdSe纳米粒子的合成及高效相转移

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Colloidal cadmium selenide (CdSe) nanoparticles capped by a short chain thiol ligand thioglycolic acid (TGA) were prepared in aqueous medium at100∘Cusing sodium selenite as the selenium source. The prepared particles were efficiently transferred into organic phases through the partial ligand exchange process using 1-dodecanethiol (1-DDT). The FT-IR spectrum analysis shows the existence of the ligands on the surface of the nanoparticles in aqueous and organic phase through their characteristic modes. TEM analysis of the prepared samples reveals the size and crystalline nature of the particles. EDX analysis indicates the presence of respective elements in the resultant powdered sample. The possible mechanism of the phase transfer process was analysed. The resultant phase-transferred particles can efficiently be blended with a low band gap semiconducting polymer in a common solvent for active layer in hybrid solar cell fabrication. The results are discussed in detail.
机译:以亚硒酸钠为硒源,在100℃的水介质中制备了由短链硫醇配体硫代乙醇酸(TGA)覆盖的胶体硒化镉纳米颗粒。使用1-十二烷硫醇(1-DDT)通过部分配体交换过程将制得的颗粒有效转移到有机相中。 FT-IR光谱分析通过其特征模式显示了在水相和有机相中的纳米颗粒表面上的配体的存在。所制备样品的TEM分析揭示了颗粒的大小和晶体性质。 EDX分析表明在所得粉末状样品中存在相应的元素。分析了相转移过程的可能机理。在混合太阳能电池制造中,可以将所得的相转移颗粒与低带隙半导体聚合物有效混合在用于活性层的普通溶剂中。详细讨论了结果。

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