Synthesis of 4-aminothiophenol functionalized quantum dots to sensitize silver nanowires and its application for solar cells

Synthetic Metals, 2017, 226, 50–55

Peng Kong, Rui Wang, Chen Zhang, Zhongjie Du, Hangquan Li, Wei Zou*

摘要：A novel strategy for synthesizing a quantum dot (QD)-sensitized silver nanowire (AgNW) nanocomposite has been reported. aminothiophenol  (PATP)  functionalized  quantum  dots

 (QDs-PATP)  were prepared using the thiol ( -SH) end of PATP molecules strongly bound to the surface of QDs via a ligand exchange technique. AgNWs could bind to the remaining amino group ( -NH2) of PATP via self-assembly techniques, and quantum dot-sensitized silvernanowires were then formed. The nanocomposite is denoted as QDs-PATP@AgNWs. The photovoltaic properties of a quantum dot -sensitized solar cell (QDSSC) based on QDs-PATP@AgNWs were investigated. Under AM 1.5 illumination, the QDSSC reached a peak conversion efficiency of 3.34%. This finding suggests that QDs-PATP@AgNWs had potential applications as a photoanode for QDSSC. (C) 2017 Elsevier B.V. All rights reserved.