Molecular aggregation method for perovskite-fullerene bulk heterostructure solar cells

Su Ryong Ha; Woo Hyeon Jeong; Yanliang Liu; Jae Teak Oh; Sung Yong Bae; Seungjin Lee; Jae Won Kim; Sujoy Bandyopadhyay; Hong In Jeong; Jin Young Kim; Younghoon Kim; Myoung Hoon Song; Sung Heum Park; Samuel D. Stranks; Bo Ram Lee; Richard H. Friend; Hyosung Choi

doi:10.1039/c9ta11854c

Molecular aggregation method for perovskite-fullerene bulk heterostructure solar cells

Su Ryong Ha, Woo Hyeon Jeong, Yanliang Liu, Jae Teak Oh, Sung Yong Bae, Seungjin Lee, Jae Won Kim, Sujoy Bandyopadhyay, Hong In Jeong, Jin Young Kim, Younghoon Kim, Myoung Hoon Song, Sung Heum Park, Samuel D. Stranks, Bo Ram Lee, Richard H. Friend, Hyosung Choi

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

16 Scopus citations

Abstract

We report morphological control with phenyl-C60-butyric acid methyl ester (PCBM) molecular aggregation for perovskite-PCBM bulk heterostructure (Pe-PCBM BHS) solar cells. Solar cells prepared via the Pe-PCBM BHS method exhibited a higher power conversion efficiency (PCE) of 18% than 11% from a device with a conventional planar heterojunction structure. The Pe-PCBM BHS can enhance device efficiency by improving electron transfer, shortening the electron transport length required for collection, and reducing the charge transfer resistance at the interface between the perovskite and PCBM through an increase of the perovskite crystal size and construction of a vertical perovskite-PCBM intermixing zone. To the best of our knowledge, the high PCE achieved by our Pe-PCBM BHS is the highest value to be reported in an inverted perovskite solar cell without buffer layers, such as metal oxides or low work function metals.

Original language	English
Pages (from-to)	1326-1334
Number of pages	9
Journal	Journal of Materials Chemistry A
Volume	8
Issue number	3
DOIs	https://doi.org/10.1039/c9ta11854c
State	Published - 2020
Externally published	Yes

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Ha, S. R., Jeong, W. H., Liu, Y., Oh, J. T., Bae, S. Y., Lee, S., Kim, J. W., Bandyopadhyay, S., Jeong, H. I., Kim, J. Y., Kim, Y., Song, M. H., Park, S. H., Stranks, S. D., Lee, B. R., Friend, R. H., & Choi, H. (2020). Molecular aggregation method for perovskite-fullerene bulk heterostructure solar cells. Journal of Materials Chemistry A, 8(3), 1326-1334. https://doi.org/10.1039/c9ta11854c

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title = "Molecular aggregation method for perovskite-fullerene bulk heterostructure solar cells",

abstract = "We report morphological control with phenyl-C60-butyric acid methyl ester (PCBM) molecular aggregation for perovskite-PCBM bulk heterostructure (Pe-PCBM BHS) solar cells. Solar cells prepared via the Pe-PCBM BHS method exhibited a higher power conversion efficiency (PCE) of 18% than 11% from a device with a conventional planar heterojunction structure. The Pe-PCBM BHS can enhance device efficiency by improving electron transfer, shortening the electron transport length required for collection, and reducing the charge transfer resistance at the interface between the perovskite and PCBM through an increase of the perovskite crystal size and construction of a vertical perovskite-PCBM intermixing zone. To the best of our knowledge, the high PCE achieved by our Pe-PCBM BHS is the highest value to be reported in an inverted perovskite solar cell without buffer layers, such as metal oxides or low work function metals.",

author = "Ha, {Su Ryong} and Jeong, {Woo Hyeon} and Yanliang Liu and Oh, {Jae Teak} and Bae, {Sung Yong} and Seungjin Lee and Kim, {Jae Won} and Sujoy Bandyopadhyay and Jeong, {Hong In} and Kim, {Jin Young} and Younghoon Kim and Song, {Myoung Hoon} and Park, {Sung Heum} and Stranks, {Samuel D.} and Lee, {Bo Ram} and Friend, {Richard H.} and Hyosung Choi",

note = "Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2020",

doi = "10.1039/c9ta11854c",

language = "English",

volume = "8",

pages = "1326--1334",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Molecular aggregation method for perovskite-fullerene bulk heterostructure solar cells

AU - Ha, Su Ryong

AU - Jeong, Woo Hyeon

AU - Liu, Yanliang

AU - Oh, Jae Teak

AU - Bae, Sung Yong

AU - Lee, Seungjin

AU - Kim, Jae Won

AU - Bandyopadhyay, Sujoy

AU - Jeong, Hong In

AU - Kim, Jin Young

AU - Kim, Younghoon

AU - Song, Myoung Hoon

AU - Park, Sung Heum

AU - Stranks, Samuel D.

AU - Lee, Bo Ram

AU - Friend, Richard H.

AU - Choi, Hyosung

PY - 2020

Y1 - 2020

N2 - We report morphological control with phenyl-C60-butyric acid methyl ester (PCBM) molecular aggregation for perovskite-PCBM bulk heterostructure (Pe-PCBM BHS) solar cells. Solar cells prepared via the Pe-PCBM BHS method exhibited a higher power conversion efficiency (PCE) of 18% than 11% from a device with a conventional planar heterojunction structure. The Pe-PCBM BHS can enhance device efficiency by improving electron transfer, shortening the electron transport length required for collection, and reducing the charge transfer resistance at the interface between the perovskite and PCBM through an increase of the perovskite crystal size and construction of a vertical perovskite-PCBM intermixing zone. To the best of our knowledge, the high PCE achieved by our Pe-PCBM BHS is the highest value to be reported in an inverted perovskite solar cell without buffer layers, such as metal oxides or low work function metals.

AB - We report morphological control with phenyl-C60-butyric acid methyl ester (PCBM) molecular aggregation for perovskite-PCBM bulk heterostructure (Pe-PCBM BHS) solar cells. Solar cells prepared via the Pe-PCBM BHS method exhibited a higher power conversion efficiency (PCE) of 18% than 11% from a device with a conventional planar heterojunction structure. The Pe-PCBM BHS can enhance device efficiency by improving electron transfer, shortening the electron transport length required for collection, and reducing the charge transfer resistance at the interface between the perovskite and PCBM through an increase of the perovskite crystal size and construction of a vertical perovskite-PCBM intermixing zone. To the best of our knowledge, the high PCE achieved by our Pe-PCBM BHS is the highest value to be reported in an inverted perovskite solar cell without buffer layers, such as metal oxides or low work function metals.

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U2 - 10.1039/c9ta11854c

DO - 10.1039/c9ta11854c

M3 - Article

AN - SCOPUS:85078699188

SN - 2050-7488

VL - 8

SP - 1326

EP - 1334

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 3

ER -

Molecular aggregation method for perovskite-fullerene bulk heterostructure solar cells

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