title: The Effects of Improved Photoelectric Properties of PEDOT:PSS by Two-Step Treatments on the Performance of Polymer Solar Cells Based on PTB7-Th:PC(71)BM.
abstract: In this paper, we present a smart two-step treated method to simultaneously improve the work function, conductivity, and transmittance of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (
  PSS). With the two-step treated
  PSS, the short-circuit current density of polymer solar cells (PSCs) based on PTB7-Th:PC71BM increases from 13.41 to 22.10 mA/cm(2), and the power conversion efficiency increases from 7.35% to 9.82% with 33% improvement. The underlying mechanisms on performance improvement of PSCs can be summarized as follows: (1) two-step treated
  PSS with the improved work function and the conductivity, which contributes significantly to the charge collection of PSCs; and (2) two-step treated
  PSS with higher transmittance, which is of benefit to the light absorption of the active layer in PSCs.
authors.affiliation: Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education , Beijing, 100044, China.|Institute of Optoelectronics Technology, Beijing Jiaotong University , Beijing, 100044, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education , Beijing, 100044, China.|Institute of Optoelectronics Technology, Beijing Jiaotong University , Beijing, 100044, China.
authors.forename: Suling
authors.initials: S
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education , Beijing, 100044, China.|Institute of Optoelectronics Technology, Beijing Jiaotong University , Beijing, 100044, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Xu
authors.affiliation: Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education , Beijing, 100044, China.|Institute of Optoelectronics Technology, Beijing Jiaotong University , Beijing, 100044, China.
authors.forename: Di
authors.initials: D
authors.lastname: Huang
authors.affiliation: Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education , Beijing, 100044, China.|Institute of Optoelectronics Technology, Beijing Jiaotong University , Beijing, 100044, China.
authors.forename: Jiao
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education , Beijing, 100044, China.|Institute of Optoelectronics Technology, Beijing Jiaotong University , Beijing, 100044, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Li
authors.affiliation: Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education , Beijing, 100044, China.|Institute of Optoelectronics Technology, Beijing Jiaotong University , Beijing, 100044, China.
authors.forename: Xurong
authors.initials: X
authors.lastname: Xu
keywords: PEDOT:PSS; conductivity; transmittance; two-step treated method; work function