Indoline as electron donor unit in "push-Pull" organic small molecules for solution processed organic solar cells: Effect of the molecular π-bridge on device efficiency

Núria F. Montcada; Lydia Cabau; Challuri Vijay Kumar; Werther Cambarau; Emilio Palomares

doi:10.1016/j.orgel.2015.01.039

Indoline as electron donor unit in "push-Pull" organic small molecules for solution processed organic solar cells: Effect of the molecular π-bridge on device efficiency

Núria F. Montcada
, Lydia Cabau
, Challuri Vijay Kumar
, Werther Cambarau
, Emilio Palomares^*

^*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

In this work we have synthesized and characterized four indoline-based small organic molecules for their use as electron donor moiety in bulk-heterojunction solution processed organic solar cells combined with PC₇₀BM as electron acceptor. Our results show a wide range of light to energy efficiencies from 0.8% to 3.5% under standard measurement conditions. An initial analysis suggests that the main limitation is the device photocurrent due to the device film thickness. Yet, charge transfer dynamics were studied to correlate charge loss mechanisms to π-bridge structural variations and, moreover, mobility measurements were also carried out to fully explain these device limitations.

Original language	English
Pages (from-to)	15-23
Number of pages	9
Journal	Organic Electronics
Volume	20
DOIs	https://doi.org/10.1016/j.orgel.2015.01.039
Publication status	Published - May 2015
Externally published	Yes

Keywords

Indoline
Small molecule design
Small molecule solar cells
Solution processing
π-bridge

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.orgel.2015.01.039

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title = "Indoline as electron donor unit in {"}push-Pull{"} organic small molecules for solution processed organic solar cells: Effect of the molecular π-bridge on device efficiency",

abstract = "In this work we have synthesized and characterized four indoline-based small organic molecules for their use as electron donor moiety in bulk-heterojunction solution processed organic solar cells combined with PC70BM as electron acceptor. Our results show a wide range of light to energy efficiencies from 0.8\% to 3.5\% under standard measurement conditions. An initial analysis suggests that the main limitation is the device photocurrent due to the device film thickness. Yet, charge transfer dynamics were studied to correlate charge loss mechanisms to π-bridge structural variations and, moreover, mobility measurements were also carried out to fully explain these device limitations.",

keywords = "Indoline, Small molecule design, Small molecule solar cells, Solution processing, π-bridge",

author = "Montcada, \{N{\'u}ria F.\} and Lydia Cabau and Kumar, \{Challuri Vijay\} and Werther Cambarau and Emilio Palomares",

year = "2015",

month = may,

doi = "10.1016/j.orgel.2015.01.039",

language = "English",

volume = "20",

pages = "15--23",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Indoline as electron donor unit in "push-Pull" organic small molecules for solution processed organic solar cells

T2 - Effect of the molecular π-bridge on device efficiency

AU - Montcada, Núria F.

AU - Cabau, Lydia

AU - Kumar, Challuri Vijay

AU - Cambarau, Werther

AU - Palomares, Emilio

PY - 2015/5

Y1 - 2015/5

N2 - In this work we have synthesized and characterized four indoline-based small organic molecules for their use as electron donor moiety in bulk-heterojunction solution processed organic solar cells combined with PC70BM as electron acceptor. Our results show a wide range of light to energy efficiencies from 0.8% to 3.5% under standard measurement conditions. An initial analysis suggests that the main limitation is the device photocurrent due to the device film thickness. Yet, charge transfer dynamics were studied to correlate charge loss mechanisms to π-bridge structural variations and, moreover, mobility measurements were also carried out to fully explain these device limitations.

AB - In this work we have synthesized and characterized four indoline-based small organic molecules for their use as electron donor moiety in bulk-heterojunction solution processed organic solar cells combined with PC70BM as electron acceptor. Our results show a wide range of light to energy efficiencies from 0.8% to 3.5% under standard measurement conditions. An initial analysis suggests that the main limitation is the device photocurrent due to the device film thickness. Yet, charge transfer dynamics were studied to correlate charge loss mechanisms to π-bridge structural variations and, moreover, mobility measurements were also carried out to fully explain these device limitations.

KW - Indoline

KW - Small molecule design

KW - Small molecule solar cells

KW - Solution processing

KW - π-bridge

UR - https://www.scopus.com/pages/publications/84922717830

U2 - 10.1016/j.orgel.2015.01.039

DO - 10.1016/j.orgel.2015.01.039

M3 - Article

AN - SCOPUS:84922717830

SN - 1566-1199

VL - 20

SP - 15

EP - 23

JO - Organic Electronics

JF - Organic Electronics

ER -

Indoline as electron donor unit in "push-Pull" organic small molecules for solution processed organic solar cells: Effect of the molecular π-bridge on device efficiency

Abstract

Keywords

UN SDGs

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