Abstract

In order to prepare CuFeSe₂ films at a low cost, the electrochemical behavior of the plating solution with different pH, and the effects of different electrodeposition potential, electrodeposition temperature and electrodeposition time on the phase formation and morphology of the electrodeposited CuFeSe₂ films were investigated. CuFeSe₂ films were prepared by electrodeposition using copper sulfate, ammonium ferrous sulfate, selenium dioxide and sodium citrate as raw materials. When the pH is 2.5, the electrodeposition potential is −0.6 V, electrodeposition time is 30 min and the electrodeposition temperature is 30 °C, the thin films are well crystallized, compact and uniform, and the micromorphology of the samples is granular crystal. In this paper, electrochemical workstation was used to test the electrochemical performance of the bath, XRD was used to characterize the phase of the sample, SEM was used to characterize the morphology of the sample.

摘要

为了以低成本制备CuFeSe ₂薄膜，研究了不同pH下镀液的电化学行为，以及不同电沉积电位、电沉积温度和电沉积时间对电沉积CuFeSe ₂薄膜的相形成和形貌的影响。 . 铜铁硒₂以硫酸铜、硫酸亚铁铵、二氧化硒和柠檬酸钠为原料，采用电沉积法制备薄膜。当pH为2.5，电沉积电位为-0.6 V，电沉积时间为30 min，电沉积温度为30 ℃时，薄膜结晶良好，致密均匀，样品的微观形貌为颗粒状晶体。本文采用电化学工作站对镀液的电化学性能进行测试，XRD用于表征样品的物相，SEM用于表征样品的形貌。