Tailoring of Electron-Collecting Oxide Nanoparticulate Layer for Flexible Perovskite Solar Cells

Seong Sik Shin; Woon Seok Yang; Eun Joo Yeom; Seon Joo Lee; Nam Joong Jeon; Young Chang Joo; Ik Jae Park; Jun Hong Noh; Sang Il Seok

doi:10.1021/acs.jpclett.6b00295

Tailoring of Electron-Collecting Oxide Nanoparticulate Layer for Flexible Perovskite Solar Cells

Seong Sik Shin
, Woon Seok Yang
, Eun Joo Yeom
, Seon Joo Lee
, Nam Joong Jeon
, Young Chang Joo
, Ik Jae Park
, Jun Hong Noh^*
, Sang Il Seok

^*Corresponding author for this work

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

101 Citations (Scopus)

Abstract

Low-temperature-processed perovskite solar cells (PSCs), especially those fabricated on flexible substrates, exhibit device performance that is worse than that of high-temperature-processed PSCs. One of the main reasons for the inferior performance of low-temperature-processed PSCs is the loss of photogenerated electrons in the electron collection layer (ECL) or related interfaces, i.e.; indium tin oxide/ECL and ECL/perovskite. Here, we report that tailoring of the energy level and electron transporting ability in oxide ECLs using Zn₂SnO₄ nanoparticles and quantum dots notably minimizes the loss of photogenerated electrons in the low-temperature-fabricated flexible PSC. The proposed ECL with methylammonium lead halide [MAPb(I_0.9Br_0.1)₃] leads to fabrication of significantly improved flexible PSCs with steady-state power conversion efficiency of 16.0% under AM 1.5G illumination of 100 mW cm^-2 intensity. These results provide an effective method for fabricating high-performance, low-temperature solution-processed flexible PSCs.

Original language	English
Pages (from-to)	1845-1851
Number of pages	7
Journal	Journal of Physical Chemistry Letters
Volume	7
Issue number	10
DOIs	https://doi.org/10.1021/acs.jpclett.6b00295
Publication status	Published - 2016 May 19
Externally published	Yes

ASJC Scopus subject areas

General Materials Science

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title = "Tailoring of Electron-Collecting Oxide Nanoparticulate Layer for Flexible Perovskite Solar Cells",

abstract = "Low-temperature-processed perovskite solar cells (PSCs), especially those fabricated on flexible substrates, exhibit device performance that is worse than that of high-temperature-processed PSCs. One of the main reasons for the inferior performance of low-temperature-processed PSCs is the loss of photogenerated electrons in the electron collection layer (ECL) or related interfaces, i.e.; indium tin oxide/ECL and ECL/perovskite. Here, we report that tailoring of the energy level and electron transporting ability in oxide ECLs using Zn2SnO4 nanoparticles and quantum dots notably minimizes the loss of photogenerated electrons in the low-temperature-fabricated flexible PSC. The proposed ECL with methylammonium lead halide [MAPb(I0.9Br0.1)3] leads to fabrication of significantly improved flexible PSCs with steady-state power conversion efficiency of 16.0\% under AM 1.5G illumination of 100 mW cm-2 intensity. These results provide an effective method for fabricating high-performance, low-temperature solution-processed flexible PSCs.",

author = "Shin, \{Seong Sik\} and Yang, \{Woon Seok\} and Yeom, \{Eun Joo\} and Lee, \{Seon Joo\} and Jeon, \{Nam Joong\} and Joo, \{Young Chang\} and Park, \{Ik Jae\} and Noh, \{Jun Hong\} and Seok, \{Sang Il\}",

year = "2016",

month = may,

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doi = "10.1021/acs.jpclett.6b00295",

language = "English",

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AU - Shin, Seong Sik

AU - Yang, Woon Seok

AU - Yeom, Eun Joo

AU - Lee, Seon Joo

AU - Jeon, Nam Joong

AU - Joo, Young Chang

AU - Park, Ik Jae

AU - Noh, Jun Hong

AU - Seok, Sang Il

PY - 2016/5/19

Y1 - 2016/5/19

N2 - Low-temperature-processed perovskite solar cells (PSCs), especially those fabricated on flexible substrates, exhibit device performance that is worse than that of high-temperature-processed PSCs. One of the main reasons for the inferior performance of low-temperature-processed PSCs is the loss of photogenerated electrons in the electron collection layer (ECL) or related interfaces, i.e.; indium tin oxide/ECL and ECL/perovskite. Here, we report that tailoring of the energy level and electron transporting ability in oxide ECLs using Zn2SnO4 nanoparticles and quantum dots notably minimizes the loss of photogenerated electrons in the low-temperature-fabricated flexible PSC. The proposed ECL with methylammonium lead halide [MAPb(I0.9Br0.1)3] leads to fabrication of significantly improved flexible PSCs with steady-state power conversion efficiency of 16.0% under AM 1.5G illumination of 100 mW cm-2 intensity. These results provide an effective method for fabricating high-performance, low-temperature solution-processed flexible PSCs.

AB - Low-temperature-processed perovskite solar cells (PSCs), especially those fabricated on flexible substrates, exhibit device performance that is worse than that of high-temperature-processed PSCs. One of the main reasons for the inferior performance of low-temperature-processed PSCs is the loss of photogenerated electrons in the electron collection layer (ECL) or related interfaces, i.e.; indium tin oxide/ECL and ECL/perovskite. Here, we report that tailoring of the energy level and electron transporting ability in oxide ECLs using Zn2SnO4 nanoparticles and quantum dots notably minimizes the loss of photogenerated electrons in the low-temperature-fabricated flexible PSC. The proposed ECL with methylammonium lead halide [MAPb(I0.9Br0.1)3] leads to fabrication of significantly improved flexible PSCs with steady-state power conversion efficiency of 16.0% under AM 1.5G illumination of 100 mW cm-2 intensity. These results provide an effective method for fabricating high-performance, low-temperature solution-processed flexible PSCs.

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Tailoring of Electron-Collecting Oxide Nanoparticulate Layer for Flexible Perovskite Solar Cells

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