Efficient TiO                         2                          Surface Treatment Using Cs                         2                         CO                         3                          for Solution-Processed Planar-Type Sb                         2                         S                         3                          Solar Cells

Wook Hyun Kim; Sungho Woo; Kang Pil Kim; Soo Min Kwon; Dae Hwan Kim

doi:10.1186/s11671-019-2858-5

Efficient TiO ₂ Surface Treatment Using Cs ₂ CO ₃ for Solution-Processed Planar-Type Sb ₂ S ₃ Solar Cells

Wook Hyun Kim
, Sungho Woo
, Kang Pil Kim
, Soo Min Kwon
, Dae Hwan Kim

Division of Energy Techonology

Daegu Gyeongbuk Institute of Science and Technology

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

18 Scopus citations

Abstract

We report a highly effective surface treatment method for planar-type Sb ₂ S ₃ solar cells by employing a Cs ₂ CO ₃ -modified compact TiO ₂ (c-TiO ₂ ) electron transport layer. It is found that surface treatment using a Cs ₂ CO ₃ solution can shift the work function of c-TiO ₂ upward and reduce its surface roughness. As a result, compared with the power conversion efficiency of untreated solar cells, that of the treated solar cells with a glass/FTO/c-TiO ₂ (/Cs ₂ CO ₃ )/Sb ₂ S ₃ /P3HT/Au structure significantly improved from 2.83 to 3.97%. This study demonstrates that the introduction of Cs ₂ CO ₃ on a c-TiO ₂ layer is a simple and efficient way to adjust the work function of the electron transport layer and fabricate high-performance planar-type Sb ₂ S ₃ solar cells.

Original language	English
Article number	25
Journal	Nanoscale Research Letters
Volume	14
DOIs	https://doi.org/10.1186/s11671-019-2858-5
State	Published - 2019

Bibliographical note

Publisher Copyright:
© 2019, The Author(s).

Keywords

Cs CO
Electron transport layer
Planar-type Sb S solar cell
Solution process
Surface treatment

Access to Document

10.1186/s11671-019-2858-5

Cite this

Kim, W. H., Woo, S., Kim, K. P., Kwon, S. M., & Kim, D. H. (2019). Efficient TiO ₂ Surface Treatment Using Cs ₂ CO ₃ for Solution-Processed Planar-Type Sb ₂ S ₃ Solar Cells Nanoscale Research Letters, 14, Article 25. https://doi.org/10.1186/s11671-019-2858-5

Kim, Wook Hyun ; Woo, Sungho ; Kim, Kang Pil et al. / Efficient TiO ₂ Surface Treatment Using Cs ₂ CO ₃ for Solution-Processed Planar-Type Sb ₂ S ₃ Solar Cells In: Nanoscale Research Letters. 2019 ; Vol. 14.

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title = " Efficient TiO 2 Surface Treatment Using Cs 2 CO 3 for Solution-Processed Planar-Type Sb 2 S 3 Solar Cells ",

abstract = " We report a highly effective surface treatment method for planar-type Sb 2 S 3 solar cells by employing a Cs 2 CO 3 -modified compact TiO 2 (c-TiO 2 ) electron transport layer. It is found that surface treatment using a Cs 2 CO 3 solution can shift the work function of c-TiO 2 upward and reduce its surface roughness. As a result, compared with the power conversion efficiency of untreated solar cells, that of the treated solar cells with a glass/FTO/c-TiO 2 (/Cs 2 CO 3 )/Sb 2 S 3 /P3HT/Au structure significantly improved from 2.83 to 3.97\%. This study demonstrates that the introduction of Cs 2 CO 3 on a c-TiO 2 layer is a simple and efficient way to adjust the work function of the electron transport layer and fabricate high-performance planar-type Sb 2 S 3 solar cells.",

keywords = "Cs CO, Electron transport layer, Planar-type Sb S solar cell, Solution process, Surface treatment",

author = "Kim, \{Wook Hyun\} and Sungho Woo and Kim, \{Kang Pil\} and Kwon, \{Soo Min\} and Kim, \{Dae Hwan\}",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

doi = "10.1186/s11671-019-2858-5",

language = "English",

volume = "14",

journal = "Nanoscale Research Letters",

issn = "1931-7573",

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Kim, WH, Woo, S , Kim, KP, Kwon, SM & Kim, DH 2019, ' Efficient TiO ₂ Surface Treatment Using Cs ₂ CO ₃ for Solution-Processed Planar-Type Sb ₂ S ₃ Solar Cells ', Nanoscale Research Letters, vol. 14, 25. https://doi.org/10.1186/s11671-019-2858-5

Efficient TiO ₂ Surface Treatment Using Cs ₂ CO ₃ for Solution-Processed Planar-Type Sb ₂ S ₃ Solar Cells . / Kim, Wook Hyun; Woo, Sungho ; Kim, Kang Pil et al.
In: Nanoscale Research Letters, Vol. 14, 25, 2019.

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

TY - JOUR

T1 - Efficient TiO 2 Surface Treatment Using Cs 2 CO 3 for Solution-Processed Planar-Type Sb 2 S 3 Solar Cells

AU - Kim, Wook Hyun

AU - Woo, Sungho

AU - Kim, Kang Pil

AU - Kwon, Soo Min

AU - Kim, Dae Hwan

PY - 2019

Y1 - 2019

N2 - We report a highly effective surface treatment method for planar-type Sb 2 S 3 solar cells by employing a Cs 2 CO 3 -modified compact TiO 2 (c-TiO 2 ) electron transport layer. It is found that surface treatment using a Cs 2 CO 3 solution can shift the work function of c-TiO 2 upward and reduce its surface roughness. As a result, compared with the power conversion efficiency of untreated solar cells, that of the treated solar cells with a glass/FTO/c-TiO 2 (/Cs 2 CO 3 )/Sb 2 S 3 /P3HT/Au structure significantly improved from 2.83 to 3.97%. This study demonstrates that the introduction of Cs 2 CO 3 on a c-TiO 2 layer is a simple and efficient way to adjust the work function of the electron transport layer and fabricate high-performance planar-type Sb 2 S 3 solar cells.

AB - We report a highly effective surface treatment method for planar-type Sb 2 S 3 solar cells by employing a Cs 2 CO 3 -modified compact TiO 2 (c-TiO 2 ) electron transport layer. It is found that surface treatment using a Cs 2 CO 3 solution can shift the work function of c-TiO 2 upward and reduce its surface roughness. As a result, compared with the power conversion efficiency of untreated solar cells, that of the treated solar cells with a glass/FTO/c-TiO 2 (/Cs 2 CO 3 )/Sb 2 S 3 /P3HT/Au structure significantly improved from 2.83 to 3.97%. This study demonstrates that the introduction of Cs 2 CO 3 on a c-TiO 2 layer is a simple and efficient way to adjust the work function of the electron transport layer and fabricate high-performance planar-type Sb 2 S 3 solar cells.

KW - Cs CO

KW - Electron transport layer

KW - Planar-type Sb S solar cell

KW - Solution process

KW - Surface treatment

UR - https://www.scopus.com/pages/publications/85060197483

U2 - 10.1186/s11671-019-2858-5

DO - 10.1186/s11671-019-2858-5

M3 - Article

AN - SCOPUS:85060197483

SN - 1931-7573

VL - 14

JO - Nanoscale Research Letters

JF - Nanoscale Research Letters

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Kim WH, Woo S , Kim KP, Kwon SM, Kim DH. Efficient TiO ₂ Surface Treatment Using Cs ₂ CO ₃ for Solution-Processed Planar-Type Sb ₂ S ₃ Solar Cells Nanoscale Research Letters. 2019;14:25. doi: 10.1186/s11671-019-2858-5