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Key Documents

754013

Sigma-Aldrich

PFO-DBT

average Mw 10,000-50,000

Synonym(s):

Poly[2,7-(9,9-dioctylfluorene)-alt-4,7-bis(thiophen-2-yl)benzo-2,1,3-thiadiazole]

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About This Item

Linear Formula:
(C43H46N2S3)n
CAS Number:
UNSPSC Code:
12352103
NACRES:
NA.23

description

Band gap: 1.87 eV

Quality Level

form

solid

mol wt

average Mw 10,000-50,000

loss

0.5 wt. % TGA, 400 °C

transition temp

Tm >400 °C

Orbital energy

HOMO -5.4 eV 
LUMO -3.53  (CV)

OPV Device Performance

ITO/PEDOT:PSS/PFO-DPT:PC61BM (1:2)/Ba/Al

  • Short-circuit current density (Jsc): 5.18 mA/cm2
  • Open-circuit voltage (Voc): 0.95 V
  • Fill Factor (FF): 0.35
  • Power Conversion Efficiency (PCE): 2.24 %

semiconductor properties

P-type (mobility=3×10−4 cm2/V·s)

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Fluorene-based low band-gap copolymers for high performance photovoltaic devices
Zhou, Q.; et al.
Applied Physics Letters, 84, 1653-1653 (2004)

Articles

The development of high-performance conjugated organic molecules and polymers has received widespread attention in industrial and academic research.

Optoelectronic devices such as light-emitting diodes (LEDs), solar cells, and light-emitting field effect transistors (FETs) that utilize organic materials as their light harvesting and/or charge transporting component have been the subject of much academic and commercial attention.

Organic photovoltaics (OPVs) represent a low-cost, lightweight, and scalable alternative to conventional solar cells. While significant progress has been made in the development of conventional bulk heterojunction cells, new approaches are required to achieve the performance and stability necessary to enable commercially successful OPVs.

There is widespread demand for thin, lightweight, and flexible electronic devices such as displays, sensors, actuators, and radio-frequency identification tags (RFIDs). Flexibility is necessary for scalability, portability, and mechanical robustness.

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