All-polymer organic solar cells with nano-to-micron hierarchical morphology and large light receiving angle

Distributed photovoltaics in living environment harvest the sunlight in different incident angles throughout the day. The development of planer solar cells with large light-receiving angle can reduce the requirements in installation form factor and is therefore urgently required. Here, thin film organic photovoltaics with nano-sized phase separation integrated in micro-sized surface topology is demonstrated as an ideal solution to proposed applications. All-polymer solar cells, by means of a newly developed sequential processing, show large magnitude hierarchical morphology with facilitated exciton-to-carrier conversion. The nano fibrilar donor-acceptor network and micron-scale optical field trapping structure…

• UD
  U.S. Department of Energy
• NN
  National Natural Science Foundation of China

  Awards: 22109094, 51973110
• CP
  China Postdoctoral Science Foundation

  Awards: 2022T150406, 2022M722072
• SA
  Science and Technology Commission of Shanghai Municipality

  Awards: 21DZ1208600, 20ZR1426200
• SJ
  Shanghai Jiao Tong University
• OO
  Office of Science
• BE
  Basic Energy Sciences
• LB
  Lawrence Berkeley National Laboratory