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

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

98 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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10.1021/acs.jpclett.6b00295

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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}",

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

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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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