Detail publikace

Diketopyrrolopyrrole: Adjustment of Molecular Properties

VALA, M. HEINRICHOVA, P. WEITER, M.

Originální název

Diketopyrrolopyrrole: Adjustment of Molecular Properties

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Four derivatives of diketopyrrolopyrrole (DPP) end-capped with benzofuran, benzooxazol, benzothiofen or benzothiazol were used as electron donating material in bulk heterojunction organic solar cells (BHJ OSC). The derivatives were designed to provide increased open circuit voltage due to lower HOMO and thus to approach ideal molecular energy leveling. All of the new materials (benzooxazol, benzothiofen benzothiazol DPPs) showed limited recrystallization upon gentle annealing temperatures compatible with flexible devices fabrication. As a result of lower charge carrier mobility of benzooxazol and benzothiazol derivatives the resulting power conversion efficiency (PCE) was poor. The benzothiofen derivative exhibited improved PCE in as-cast devices compared to previously reported benzofuran DPP. However, due to limited recrystallization, the overall PCE was also not improved in the annealed devices.

Klíčová slova

organic semiconductors; photovoltaic cells; solar energy

Autoři

VALA, M.; HEINRICHOVA, P.; WEITER, M.

Vydáno

10. 6. 2018

Nakladatel

IEEE

Místo

Waikoloa, HI

ISBN

978-1-5386-8529-7

Kniha

World Conference on Photovoltaic Energy Conversion WCPEC

Strany od

1152

Strany do

1154

Strany počet

3

URL

https://www.webofscience.com/wos/woscc/full-record/WOS:000469200401040

BibTex

@inproceedings{BUT176941,
  author="VALA, M. and HEINRICHOVA, P. and WEITER, M.",
  title="Diketopyrrolopyrrole: Adjustment of Molecular Properties",
  booktitle="World Conference on Photovoltaic Energy Conversion WCPEC",
  year="2018",
  pages="1152--1154",
  publisher="IEEE",
  address="Waikoloa, HI",
  isbn="978-1-5386-8529-7",
  url="https://www.webofscience.com/wos/woscc/full-record/WOS:000469200401040"
}