The Role of Driving Energy and Delocalized States for Charge Separation in Organic Semiconductors

Artem A. Bakulin; Akshay Rao; Vlad G. Pavelyev; Paul H. M. van Loosdrecht; Maxim S. Pshenichnikov; Dorota Niedzialek; Jerome Cornil; David Beljonne; Richard H. Friend; Jérôme Cornil

doi:10.1126/science.1217745

The Role of Driving Energy and Delocalized States for Charge Separation in Organic Semiconductors

Artem A. Bakulin, Akshay Rao, Vlad G. Pavelyev, Paul H. M. van Loosdrecht, Maxim S. Pshenichnikov, Dorota Niedzialek, Jerome Cornil, David Beljonne, Richard H. Friend^*, Jérôme Cornil

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

982 Citations (Scopus)

697 Downloads (Pure)

Abstract

The electron-hole pair created via photon absorption in organic photoconversion systems must overcome the Coulomb attraction to achieve long-range charge separation. We show that this process is facilitated through the formation of excited, delocalized band states. In our experiments on organic photovoltaic cells, these states were accessed for a short time (

Original language	English
Pages (from-to)	1340-1344
Number of pages	5
Journal	Science
Volume	335
Issue number	6074
DOIs	https://doi.org/10.1126/science.1217745
Publication status	Published - 16-Mar-2012

Keywords

FULLERENE SOLAR-CELLS
EXCITON DISSOCIATION
CONJUGATED POLYMER
PHOTOVOLTAIC CELLS
BINDING-ENERGY
ACCEPTOR
BLENDS
HETEROJUNCTIONS
EFFICIENT
PHOTOGENERATION

Access to Document

10.1126/science.1217745

2012ScienceBakulinSupp.pdfFinal publisher's version, 524 KB
2012ScienceBakulin.pdfFinal publisher's version, 1.41 MB

Handle.net

Persistent link

Cite this

@article{a01c968e74db43648987713ca122856b,

title = "The Role of Driving Energy and Delocalized States for Charge Separation in Organic Semiconductors",

abstract = "The electron-hole pair created via photon absorption in organic photoconversion systems must overcome the Coulomb attraction to achieve long-range charge separation. We show that this process is facilitated through the formation of excited, delocalized band states. In our experiments on organic photovoltaic cells, these states were accessed for a short time (",

keywords = "FULLERENE SOLAR-CELLS, EXCITON DISSOCIATION, CONJUGATED POLYMER, PHOTOVOLTAIC CELLS, BINDING-ENERGY, ACCEPTOR, BLENDS, HETEROJUNCTIONS, EFFICIENT, PHOTOGENERATION",

author = "Bakulin, {Artem A.} and Akshay Rao and Pavelyev, {Vlad G.} and {van Loosdrecht}, {Paul H. M.} and Pshenichnikov, {Maxim S.} and Dorota Niedzialek and Jerome Cornil and David Beljonne and Friend, {Richard H.} and J{\'e}r{\^o}me Cornil",

year = "2012",

month = mar,

day = "16",

doi = "10.1126/science.1217745",

language = "English",

volume = "335",

pages = "1340--1344",

journal = "Science",

issn = "0036-8075",

publisher = "AMER ASSOC ADVANCEMENT SCIENCE",

number = "6074",

}

TY - JOUR

T1 - The Role of Driving Energy and Delocalized States for Charge Separation in Organic Semiconductors

AU - Bakulin, Artem A.

AU - Rao, Akshay

AU - Pavelyev, Vlad G.

AU - van Loosdrecht, Paul H. M.

AU - Pshenichnikov, Maxim S.

AU - Niedzialek, Dorota

AU - Cornil, Jerome

AU - Beljonne, David

AU - Friend, Richard H.

AU - Cornil, Jérôme

PY - 2012/3/16

Y1 - 2012/3/16

N2 - The electron-hole pair created via photon absorption in organic photoconversion systems must overcome the Coulomb attraction to achieve long-range charge separation. We show that this process is facilitated through the formation of excited, delocalized band states. In our experiments on organic photovoltaic cells, these states were accessed for a short time (

AB - The electron-hole pair created via photon absorption in organic photoconversion systems must overcome the Coulomb attraction to achieve long-range charge separation. We show that this process is facilitated through the formation of excited, delocalized band states. In our experiments on organic photovoltaic cells, these states were accessed for a short time (

KW - FULLERENE SOLAR-CELLS

KW - EXCITON DISSOCIATION

KW - CONJUGATED POLYMER

KW - PHOTOVOLTAIC CELLS

KW - BINDING-ENERGY

KW - ACCEPTOR

KW - BLENDS

KW - HETEROJUNCTIONS

KW - EFFICIENT

KW - PHOTOGENERATION

U2 - 10.1126/science.1217745

DO - 10.1126/science.1217745

M3 - Article

SN - 0036-8075

VL - 335

SP - 1340

EP - 1344

JO - Science

JF - Science

IS - 6074

ER -