Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
J Colloid Interface Sci. 2018 Feb 15;512:548-554. doi: 10.1016/j.jcis.2017.10.041. Epub 2017 Oct 26.
The wet chemical synthesis, characterization and applications of Nb doped ZnO nanorods in bulk heterojunction inverted polymer solar cells are presented in this paper. ZnNbO with x ranging from 0.01 to 0.07 were successfully synthesized using a novel facile solution-processed wet chemical method. The structural and optical properties of the undoped and Nb doped ZnO nanorods were investigated by transmission electron microscopy, X-ray diffraction, UV-visible near infrared, and photoluminescence (PL) spectroscopies. A clear red shift was observed in the absorption spectra of Nb doped samples compared to the undoped ZnO nanorods. The defect emission peak in the PL spectrum of the Nb doped nanorods completely disappeared at the highest dopant concentration of x=0.07. These undoped and Nb doped ZnO nanorods, in amalgamation with PTB7-Th:PCBM, were used in the inverted polymer solar cells as an electron transport layer which gives better power conversion efficiencies compared to the pure nanorods.
本文介绍了 Nb 掺杂 ZnO 纳米棒的湿化学合成、表征及其在体异质结倒置聚合物太阳能电池中的应用。采用新颖的简便溶液法湿化学法成功合成了 x 从 0.01 到 0.07 的 ZnNbO。通过透射电子显微镜、X 射线衍射、紫外-可见近红外和光致发光（PL）光谱研究了未掺杂和 Nb 掺杂 ZnO 纳米棒的结构和光学性质。与未掺杂 ZnO 纳米棒相比，Nb 掺杂样品的吸收光谱明显红移。在最高掺杂浓度 x=0.07 时，Nb 掺杂纳米棒的 PL 光谱中的缺陷发射峰完全消失。这些未掺杂和 Nb 掺杂 ZnO 纳米棒与 PTB7-Th：PCBM 结合，用作倒置聚合物太阳能电池中的电子传输层，与纯纳米棒相比，其功率转换效率更高。
