Controlling the morphology of ZnO nanorod arrays by tuning zinc nitrate/hexamethylene tetramine solution to enhance the power conversion efficiency of inverted polymer solar cell

Author

Chia-Yu Kao ; Ping-Yi Ho ; Shao-Hsuan Kao ; Chun-Wei Ku ; Ming-Shiun Lin ; Ching-Fuh Lin

Author_Institution

Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2013

fDate

16-21 June 2013

Firstpage

2720

Lastpage

2722

Abstract

In this work, method of controlling the morphology of ZnO NR arrays has been demonstrated. Moreover, with different morphologies of ZnO NR arrays affect the efficiencies of inverted PBDTTT-C-T:PC[70]BM polymer solar cells. By means of controlling the morphology of ZnO NR arrays, the device power conversion efficiency has been enhanced from 1.89% to 6.07%, Voc₂ from 0.45V to 0.75V, short current from 11.4 to 13.9 mA/cm and fill factor from 36% to 59%. To summarize, a low-cost, mass fabrication and easily solution-processed method to enhance the device PCE of inverted polymer solar cell has been showed in this study.

Keywords

nanorods; solar cells; zinc compounds; NR arrays; ZnO; device PCE enhancement; hexamethylene tetramine solution; inverted PBDTTT-C-T:PC[70]BM polymer solar cells; mass fabrication; morphologies; nanorod arrays; power conversion efficiency; solution-processed method; zinc nitrate solution; Morphology; Photonic band gap; Photovoltaic cells; Polymers; Power conversion; Zinc oxide; electron-selective layer; hydrothermal; inverted polymer solar cell; nanorod arrays; zinc oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/PVSC.2013.6745035

Filename

6745035