jp412784q_si_001.pdf (539.03 kB)
Solution-Processed Copper Iodide as an Inexpensive and Effective Anode Buffer Layer for Polymer Solar Cells
journal contribution
posted on 2014-07-31, 00:00 authored by Weihai Sun, Haitao Peng, Yunlong Li, Weibo Yan, Zhiwei Liu, Zuqiang Bian, Chunhui HuangIn
this work, a CuI anode buffer layer prepared from a facile solution-processed
method was introduced in polymer solar cells (PSCs). The CuI films
obtained under different spin-coating speeds and anneal treatments,
and the performances of corresponding device fabricated with these
CuI films were systematically investigated. The results showed that
the devices based on CuI anode buffer layer displayed superior performance
than conventional devices using poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)
sulfonic acid (PEDOT/PSS). The highest power conversion efficiency
of the PSCs based on CuI layer reached 4.15% under the illumination
of AM 1.5G, 100 mW/cm2. Furthermore, the pristine CuI layer
could be applied in PSCs immediately, which shortened the production
time of PSCs.