Study of PEDOT and analogous polymer film as back-electron injection barrier and electrical charge storing materials

Iseul Lim; Hoa Thi Bui; Chan Yong Shin; Nabeen K. Shrestha; Chinna Bathula; Taegweon Lee; Yong Young Noh; Sung Hwan Han

doi:10.1016/j.matlet.2017.09.070

Study of PEDOT and analogous polymer film as back-electron injection barrier and electrical charge storing materials

Iseul Lim
, Hoa Thi Bui
, Chan Yong Shin
, Nabeen K. Shrestha
, Chinna Bathula
, Taegweon Lee
, Yong Young Noh
, Sung Hwan Han

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

4 Scopus citations

Abstract

This work reports on back-electron injection barrier property and electrical charge storing behavior of PEDOT film with and without substituted propylene as terminal group. As a barrier layer, thin polymer film is deposited on TiO₂ particles of DSSC using photo-induced polymerization route. The same piece of DSSC device is used before and after deposition of polymer thin-film for studying the influence of interfacial treatment. The propylene substituted PEDOT treatment of the device demonstrates an enhanced power conversion efficiency from 4.31 to 5.96% whereas the unsubstituted PEDOT treated device shows only the power conversion enhancement from 4.54 to 5.31%. This finding suggests the higher barrier performance of the propylene substituted PEDOT for back-electron injections. Unlike the barrier performance, the propylene substituted PEDOT shows poorer electrical charge storing behavior with specific capacitance of 63.47 F g⁻¹ whereas the unsubstituted PEDOT film achieved 96.84 F g⁻¹.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Materials Letters
Volume	211
DOIs	https://doi.org/10.1016/j.matlet.2017.09.070
State	Published - 15 Jan 2018

Keywords

Back-electron injection
DSSCs
Interfacial treatment
PEDOT
Terminal group

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10.1016/j.matlet.2017.09.070

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@article{7612f7a874824de79641efff7cb9fb8b,

title = "Study of PEDOT and analogous polymer film as back-electron injection barrier and electrical charge storing materials",

abstract = "This work reports on back-electron injection barrier property and electrical charge storing behavior of PEDOT film with and without substituted propylene as terminal group. As a barrier layer, thin polymer film is deposited on TiO2 particles of DSSC using photo-induced polymerization route. The same piece of DSSC device is used before and after deposition of polymer thin-film for studying the influence of interfacial treatment. The propylene substituted PEDOT treatment of the device demonstrates an enhanced power conversion efficiency from 4.31 to 5.96\% whereas the unsubstituted PEDOT treated device shows only the power conversion enhancement from 4.54 to 5.31\%. This finding suggests the higher barrier performance of the propylene substituted PEDOT for back-electron injections. Unlike the barrier performance, the propylene substituted PEDOT shows poorer electrical charge storing behavior with specific capacitance of 63.47 F g−1 whereas the unsubstituted PEDOT film achieved 96.84 F g−1.",

keywords = "Back-electron injection, DSSCs, Interfacial treatment, PEDOT, Terminal group",

author = "Iseul Lim and Bui, \{Hoa Thi\} and Shin, \{Chan Yong\} and Shrestha, \{Nabeen K.\} and Chinna Bathula and Taegweon Lee and Noh, \{Yong Young\} and Han, \{Sung Hwan\}",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2018",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2017.09.070",

language = "English",

volume = "211",

pages = "1--4",

journal = "Materials Letters",

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TY - JOUR

T1 - Study of PEDOT and analogous polymer film as back-electron injection barrier and electrical charge storing materials

AU - Lim, Iseul

AU - Bui, Hoa Thi

AU - Shin, Chan Yong

AU - Shrestha, Nabeen K.

AU - Bathula, Chinna

AU - Lee, Taegweon

AU - Noh, Yong Young

AU - Han, Sung Hwan

PY - 2018/1/15

Y1 - 2018/1/15

N2 - This work reports on back-electron injection barrier property and electrical charge storing behavior of PEDOT film with and without substituted propylene as terminal group. As a barrier layer, thin polymer film is deposited on TiO2 particles of DSSC using photo-induced polymerization route. The same piece of DSSC device is used before and after deposition of polymer thin-film for studying the influence of interfacial treatment. The propylene substituted PEDOT treatment of the device demonstrates an enhanced power conversion efficiency from 4.31 to 5.96% whereas the unsubstituted PEDOT treated device shows only the power conversion enhancement from 4.54 to 5.31%. This finding suggests the higher barrier performance of the propylene substituted PEDOT for back-electron injections. Unlike the barrier performance, the propylene substituted PEDOT shows poorer electrical charge storing behavior with specific capacitance of 63.47 F g−1 whereas the unsubstituted PEDOT film achieved 96.84 F g−1.

AB - This work reports on back-electron injection barrier property and electrical charge storing behavior of PEDOT film with and without substituted propylene as terminal group. As a barrier layer, thin polymer film is deposited on TiO2 particles of DSSC using photo-induced polymerization route. The same piece of DSSC device is used before and after deposition of polymer thin-film for studying the influence of interfacial treatment. The propylene substituted PEDOT treatment of the device demonstrates an enhanced power conversion efficiency from 4.31 to 5.96% whereas the unsubstituted PEDOT treated device shows only the power conversion enhancement from 4.54 to 5.31%. This finding suggests the higher barrier performance of the propylene substituted PEDOT for back-electron injections. Unlike the barrier performance, the propylene substituted PEDOT shows poorer electrical charge storing behavior with specific capacitance of 63.47 F g−1 whereas the unsubstituted PEDOT film achieved 96.84 F g−1.

KW - Back-electron injection

KW - DSSCs

KW - Interfacial treatment

KW - PEDOT

KW - Terminal group

UR - https://www.scopus.com/pages/publications/85029781516

U2 - 10.1016/j.matlet.2017.09.070

DO - 10.1016/j.matlet.2017.09.070

M3 - Article

AN - SCOPUS:85029781516

SN - 0167-577X

VL - 211

SP - 1

EP - 4

JO - Materials Letters

JF - Materials Letters

ER -

Study of PEDOT and analogous polymer film as back-electron injection barrier and electrical charge storing materials

Abstract

Keywords

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