Enhancement of the power conversion efficiency in a polymer solar cell using a work-function-controlled TimSinOx interlayer

Soo Ghang Ihn; Younhee Lim; Sungyoung Yun; Insun Park; Jong Hwan Park; Yeonji Chung; Xavier Bulliard; Jaejune Chang; Hyeran Choi; Jong Hyeok Park; Yeong Suk Choi; Gyeong Su Park; Hyuk Chang

doi:10.1039/c3ta14863g

Enhancement of the power conversion efficiency in a polymer solar cell using a work-function-controlled Ti_mSi_nO_x interlayer

Soo Ghang Ihn, Younhee Lim, Sungyoung Yun, Insun Park, Jong Hwan Park, Yeonji Chung, Xavier Bulliard, Jaejune Chang, Hyeran Choi, Jong Hyeok Park, Yeong Suk Choi, Gyeong Su Park, Hyuk Chang

Department of Chemical and Biomolecular Engineering

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

4 Citations (Scopus)

Abstract

Work-function-adjustable Ti_mSi_nO_x provides an opportunity to optimize the energy-level alignment at the photoactive/cathode interface in the polymer bulk heterojunction solar cell. The work function of Ti_mSi_nO_x is engineered by adjusting the Si mol% during the sol-gel reaction. The controlled work function provides an energetically downhill cascade pathway for electrons from the electron acceptor to the cathode, which contributes to improvement in electron collection at the cathode. The valence band maxima of Ti_mSi _nO_x also become deeper as the Si mol% increases and the hole-blocking ability of Ti_mSi_nO_x is enhanced as a result. Accordingly, polymer solar cells fitted with the optimized Ti _mSi_nO_x exhibit enhanced performance.

Original language	English
Pages (from-to)	2033-2039
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	7
DOIs	https://doi.org/10.1039/c3ta14863g
Publication status	Published - 2014 Feb 21

All Science Journal Classification (ASJC) codes

Chemistry(all)
Renewable Energy, Sustainability and the Environment
Materials Science(all)

UN SDGs

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

Access to Document

10.1039/c3ta14863g

Cite this

@article{d4f9deabad7a474b9e43299ac14ffd4d,

title = "Enhancement of the power conversion efficiency in a polymer solar cell using a work-function-controlled TimSinOx interlayer",

abstract = "Work-function-adjustable TimSinOx provides an opportunity to optimize the energy-level alignment at the photoactive/cathode interface in the polymer bulk heterojunction solar cell. The work function of TimSinOx is engineered by adjusting the Si mol% during the sol-gel reaction. The controlled work function provides an energetically downhill cascade pathway for electrons from the electron acceptor to the cathode, which contributes to improvement in electron collection at the cathode. The valence band maxima of TimSi nOx also become deeper as the Si mol% increases and the hole-blocking ability of TimSinOx is enhanced as a result. Accordingly, polymer solar cells fitted with the optimized Ti mSinOx exhibit enhanced performance.",

author = "Ihn, {Soo Ghang} and Younhee Lim and Sungyoung Yun and Insun Park and Park, {Jong Hwan} and Yeonji Chung and Xavier Bulliard and Jaejune Chang and Hyeran Choi and Park, {Jong Hyeok} and Choi, {Yeong Suk} and Park, {Gyeong Su} and Hyuk Chang",

year = "2014",

month = feb,

day = "21",

doi = "10.1039/c3ta14863g",

language = "English",

volume = "2",

pages = "2033--2039",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

number = "7",

}

TY - JOUR

T1 - Enhancement of the power conversion efficiency in a polymer solar cell using a work-function-controlled TimSinOx interlayer

AU - Ihn, Soo Ghang

AU - Lim, Younhee

AU - Yun, Sungyoung

AU - Park, Insun

AU - Park, Jong Hwan

AU - Chung, Yeonji

AU - Bulliard, Xavier

AU - Chang, Jaejune

AU - Choi, Hyeran

AU - Park, Jong Hyeok

AU - Choi, Yeong Suk

AU - Park, Gyeong Su

AU - Chang, Hyuk

PY - 2014/2/21

Y1 - 2014/2/21

N2 - Work-function-adjustable TimSinOx provides an opportunity to optimize the energy-level alignment at the photoactive/cathode interface in the polymer bulk heterojunction solar cell. The work function of TimSinOx is engineered by adjusting the Si mol% during the sol-gel reaction. The controlled work function provides an energetically downhill cascade pathway for electrons from the electron acceptor to the cathode, which contributes to improvement in electron collection at the cathode. The valence band maxima of TimSi nOx also become deeper as the Si mol% increases and the hole-blocking ability of TimSinOx is enhanced as a result. Accordingly, polymer solar cells fitted with the optimized Ti mSinOx exhibit enhanced performance.

AB - Work-function-adjustable TimSinOx provides an opportunity to optimize the energy-level alignment at the photoactive/cathode interface in the polymer bulk heterojunction solar cell. The work function of TimSinOx is engineered by adjusting the Si mol% during the sol-gel reaction. The controlled work function provides an energetically downhill cascade pathway for electrons from the electron acceptor to the cathode, which contributes to improvement in electron collection at the cathode. The valence band maxima of TimSi nOx also become deeper as the Si mol% increases and the hole-blocking ability of TimSinOx is enhanced as a result. Accordingly, polymer solar cells fitted with the optimized Ti mSinOx exhibit enhanced performance.

UR - http://www.scopus.com/inward/record.url?scp=84892866970&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84892866970&partnerID=8YFLogxK

U2 - 10.1039/c3ta14863g

DO - 10.1039/c3ta14863g

M3 - Article

AN - SCOPUS:84892866970

SN - 2050-7488

VL - 2

SP - 2033

EP - 2039

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 7

ER -