O-methoxy substituents in spiro-OMeTAD for efficient inorganic-organic hybrid perovskite solar cells

Nam Joong Jeon, Hag Geun Lee, Young Chan Kim, Jangwon Seo, Jun Hong Noh, Jaemin Lee, Sang Il Seok

Research output: Contribution to journalArticle

477 Citations (Scopus)

Abstract

Three spiro-OMeTAD derivatives have been synthesized and characterized by 1 H/ 13 C NMR spectroscopy and mass spectrometry. The optical and electronic properties of the derivatives were modified by changing the positions of the two methoxy substituents in each of the quadrants, as monitored by UV-vis spectroscopy and cyclic voltammetry measurements. The derivatives were employed as hole-transporting materials (HTMs), and their performances were compared for the fabrication of mesoporous TiO 2 /CH 3 NH 3 PbI 3 /HTM/Au solar cells. Surprisingly, the cell performance was dependent on the positions of the OMe substituents. The derivative with o-OMe substituents showed highly improved performance by exhibiting a short-circuit current density of 21.2 mA/cm 2 , an open-circuit voltage of 1.02 V, and a fill factor of 77.6% under 1 sun illumination (100 mW/cm 2 ), which resulted in an overall power conversion efficiency (PCE) of 16.7%, compared to ∼15% for conventional p-OMe substituents. The PCE of 16.7% is the highest value reported to date for perovskite-based solar cells with spiro-OMeTAD.

Original languageEnglish
Pages (from-to)7837-7840
Number of pages4
JournalJournal of the American Chemical Society
Volume136
Issue number22
DOIs
Publication statusPublished - 2014 Jun 4
Externally publishedYes

Fingerprint

Derivatives
Conversion efficiency
Solar cells
Solar System
Lighting
Mass Spectrometry
Spectrum Analysis
Open circuit voltage
Magnetic Resonance Spectroscopy
Ultraviolet spectroscopy
Electronic properties
Short circuit currents
Sun
Perovskite
Nuclear magnetic resonance spectroscopy
Cyclic voltammetry
Mass spectrometry
Current density
Optical properties
Fabrication

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

O-methoxy substituents in spiro-OMeTAD for efficient inorganic-organic hybrid perovskite solar cells. / Jeon, Nam Joong; Lee, Hag Geun; Kim, Young Chan; Seo, Jangwon; Noh, Jun Hong; Lee, Jaemin; Seok, Sang Il.

In: Journal of the American Chemical Society, Vol. 136, No. 22, 04.06.2014, p. 7837-7840.

Research output: Contribution to journalArticle

Jeon, Nam Joong ; Lee, Hag Geun ; Kim, Young Chan ; Seo, Jangwon ; Noh, Jun Hong ; Lee, Jaemin ; Seok, Sang Il. / O-methoxy substituents in spiro-OMeTAD for efficient inorganic-organic hybrid perovskite solar cells. In: Journal of the American Chemical Society. 2014 ; Vol. 136, No. 22. pp. 7837-7840.
@article{258401921e4e4d7f829497c23876faef,
title = "O-methoxy substituents in spiro-OMeTAD for efficient inorganic-organic hybrid perovskite solar cells",
abstract = "Three spiro-OMeTAD derivatives have been synthesized and characterized by 1 H/ 13 C NMR spectroscopy and mass spectrometry. The optical and electronic properties of the derivatives were modified by changing the positions of the two methoxy substituents in each of the quadrants, as monitored by UV-vis spectroscopy and cyclic voltammetry measurements. The derivatives were employed as hole-transporting materials (HTMs), and their performances were compared for the fabrication of mesoporous TiO 2 /CH 3 NH 3 PbI 3 /HTM/Au solar cells. Surprisingly, the cell performance was dependent on the positions of the OMe substituents. The derivative with o-OMe substituents showed highly improved performance by exhibiting a short-circuit current density of 21.2 mA/cm 2 , an open-circuit voltage of 1.02 V, and a fill factor of 77.6{\%} under 1 sun illumination (100 mW/cm 2 ), which resulted in an overall power conversion efficiency (PCE) of 16.7{\%}, compared to ∼15{\%} for conventional p-OMe substituents. The PCE of 16.7{\%} is the highest value reported to date for perovskite-based solar cells with spiro-OMeTAD.",
author = "Jeon, {Nam Joong} and Lee, {Hag Geun} and Kim, {Young Chan} and Jangwon Seo and Noh, {Jun Hong} and Jaemin Lee and Seok, {Sang Il}",
year = "2014",
month = "6",
day = "4",
doi = "10.1021/ja502824c",
language = "English",
volume = "136",
pages = "7837--7840",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "22",

}

TY - JOUR

T1 - O-methoxy substituents in spiro-OMeTAD for efficient inorganic-organic hybrid perovskite solar cells

AU - Jeon, Nam Joong

AU - Lee, Hag Geun

AU - Kim, Young Chan

AU - Seo, Jangwon

AU - Noh, Jun Hong

AU - Lee, Jaemin

AU - Seok, Sang Il

PY - 2014/6/4

Y1 - 2014/6/4

N2 - Three spiro-OMeTAD derivatives have been synthesized and characterized by 1 H/ 13 C NMR spectroscopy and mass spectrometry. The optical and electronic properties of the derivatives were modified by changing the positions of the two methoxy substituents in each of the quadrants, as monitored by UV-vis spectroscopy and cyclic voltammetry measurements. The derivatives were employed as hole-transporting materials (HTMs), and their performances were compared for the fabrication of mesoporous TiO 2 /CH 3 NH 3 PbI 3 /HTM/Au solar cells. Surprisingly, the cell performance was dependent on the positions of the OMe substituents. The derivative with o-OMe substituents showed highly improved performance by exhibiting a short-circuit current density of 21.2 mA/cm 2 , an open-circuit voltage of 1.02 V, and a fill factor of 77.6% under 1 sun illumination (100 mW/cm 2 ), which resulted in an overall power conversion efficiency (PCE) of 16.7%, compared to ∼15% for conventional p-OMe substituents. The PCE of 16.7% is the highest value reported to date for perovskite-based solar cells with spiro-OMeTAD.

AB - Three spiro-OMeTAD derivatives have been synthesized and characterized by 1 H/ 13 C NMR spectroscopy and mass spectrometry. The optical and electronic properties of the derivatives were modified by changing the positions of the two methoxy substituents in each of the quadrants, as monitored by UV-vis spectroscopy and cyclic voltammetry measurements. The derivatives were employed as hole-transporting materials (HTMs), and their performances were compared for the fabrication of mesoporous TiO 2 /CH 3 NH 3 PbI 3 /HTM/Au solar cells. Surprisingly, the cell performance was dependent on the positions of the OMe substituents. The derivative with o-OMe substituents showed highly improved performance by exhibiting a short-circuit current density of 21.2 mA/cm 2 , an open-circuit voltage of 1.02 V, and a fill factor of 77.6% under 1 sun illumination (100 mW/cm 2 ), which resulted in an overall power conversion efficiency (PCE) of 16.7%, compared to ∼15% for conventional p-OMe substituents. The PCE of 16.7% is the highest value reported to date for perovskite-based solar cells with spiro-OMeTAD.

UR - http://www.scopus.com/inward/record.url?scp=84901952541&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84901952541&partnerID=8YFLogxK

U2 - 10.1021/ja502824c

DO - 10.1021/ja502824c

M3 - Article

AN - SCOPUS:84901952541

VL - 136

SP - 7837

EP - 7840

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 22

ER -