Investigation performance and mechanisms of inverted polymer solar cells by pentacene doped P3HT

PCBM

Hsin-Ying Lee, Hung Lin Huang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The inverted polymer solar cells (PSCs) with pentacene-doped P3HT: PCBM absorption layers were fabricated. It was demonstrated that the pentacene doping modulated the electron mobility and the hole mobility in the resulting absorption layer. Furthermore, by varying the doping content, the optimal carrier mobility balance could be obtained. In addition, the pentacene doping led to an improvement in the crystallinity of the resulting films and made an enhancement in the light absorption, which was partly responsible for the performance improvement of the solar cells. Using the space-charge-limited current (SCLC) method, it was determined that the balanced carrier mobility (μ h / μ e = 1.000) was nearly achieved when a pentacene doping ratio of 0.065 by weight was doped into the P3HT: PCBM: pentacene absorption layer. Compared with the inverted PSCs without the pentacene doping, the short circuit current density and the power conversion efficiency of the inverted PSCs with the pentacene doping ratio of 0.065 were increased from 9.73 mA/cm2 to 11.26 mA/cm2 and from 3.39% to 4.31%, respectively.

Original languageEnglish
Article number812643
JournalInternational Journal of Photoenergy
Volume2014
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

solar cells
Doping (additives)
polymers
Carrier mobility
carrier mobility
Hole mobility
Electron mobility
hole mobility
short circuit currents
electromagnetic absorption
electron mobility
Electric space charge
Short circuit currents
Light absorption
Conversion efficiency
Polymer solar cells
pentacene
space charge
crystallinity
Solar cells

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)

Cite this

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Investigation performance and mechanisms of inverted polymer solar cells by pentacene doped P3HT : PCBM. / Lee, Hsin-Ying; Huang, Hung Lin.

In: International Journal of Photoenergy, Vol. 2014, 812643, 01.01.2014.

Research output: Contribution to journalArticle

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