A hydro/oxo-phobic top hole-selective layer for efficient and stable colloidal quantum dot solar cells

Se Woong Baek; Sang Hoon Lee; Jung Hoon Song; Changjo Kim; Ye Seol Ha; Hyeyoung Shin; Hyungjun Kim; Sohee Jeong; Jung Yong Lee

doi:10.1039/c7ee03184j

A hydro/oxo-phobic top hole-selective layer for efficient and stable colloidal quantum dot solar cells

Se Woong Baek
, Sang Hoon Lee
, Jung Hoon Song
, Changjo Kim
, Ye Seol Ha
, Hyeyoung Shin
, Hyungjun Kim
, Sohee Jeong
, Jung Yong Lee^*

^*Corresponding author for this work

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

44 Citations (Scopus)

Abstract

In this report, we explore the underlying mechanisms by which doped organic thin films as a top hole-selective layer (HSL) improve the performance and stability of colloidal quantum dot (CQD)-based solar cells. Molecular dynamics-based theoretical studies prove that the hydro/oxo-phobic properties of the HSL serve to efficiently passivate the CQD solid. Furthermore, the robust and outstanding electrical properties of the HSL, simultaneously ensure a high power conversion efficiency (PCE) and increase the stability performance of CQD-based solar cells. As a result, a best PCE of 11.7% in a lead sulfide (PbS)-based CQD solar cell is achieved and over 90% of the initial performance is retained after 1 year storage under ambient conditions.

Original language	English
Pages (from-to)	2078-2084
Number of pages	7
Journal	Energy and Environmental Science
Volume	11
Issue number	8
DOIs	https://doi.org/10.1039/c7ee03184j
Publication status	Published - 2018 Aug
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 The Royal Society of Chemistry.

ASJC Scopus subject areas

Environmental Chemistry
Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Pollution

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1039/c7ee03184j

Cite this

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title = "A hydro/oxo-phobic top hole-selective layer for efficient and stable colloidal quantum dot solar cells",

abstract = "In this report, we explore the underlying mechanisms by which doped organic thin films as a top hole-selective layer (HSL) improve the performance and stability of colloidal quantum dot (CQD)-based solar cells. Molecular dynamics-based theoretical studies prove that the hydro/oxo-phobic properties of the HSL serve to efficiently passivate the CQD solid. Furthermore, the robust and outstanding electrical properties of the HSL, simultaneously ensure a high power conversion efficiency (PCE) and increase the stability performance of CQD-based solar cells. As a result, a best PCE of 11.7\% in a lead sulfide (PbS)-based CQD solar cell is achieved and over 90\% of the initial performance is retained after 1 year storage under ambient conditions.",

author = "Baek, \{Se Woong\} and Lee, \{Sang Hoon\} and Song, \{Jung Hoon\} and Changjo Kim and Ha, \{Ye Seol\} and Hyeyoung Shin and Hyungjun Kim and Sohee Jeong and Lee, \{Jung Yong\}",

note = "Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",

year = "2018",

month = aug,

doi = "10.1039/c7ee03184j",

language = "English",

volume = "11",

pages = "2078--2084",

journal = "Energy and Environmental Science",

issn = "1754-5692",

publisher = "Royal Society of Chemistry",

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T1 - A hydro/oxo-phobic top hole-selective layer for efficient and stable colloidal quantum dot solar cells

AU - Baek, Se Woong

AU - Lee, Sang Hoon

AU - Song, Jung Hoon

AU - Kim, Changjo

AU - Ha, Ye Seol

AU - Shin, Hyeyoung

AU - Kim, Hyungjun

AU - Jeong, Sohee

AU - Lee, Jung Yong

PY - 2018/8

Y1 - 2018/8

N2 - In this report, we explore the underlying mechanisms by which doped organic thin films as a top hole-selective layer (HSL) improve the performance and stability of colloidal quantum dot (CQD)-based solar cells. Molecular dynamics-based theoretical studies prove that the hydro/oxo-phobic properties of the HSL serve to efficiently passivate the CQD solid. Furthermore, the robust and outstanding electrical properties of the HSL, simultaneously ensure a high power conversion efficiency (PCE) and increase the stability performance of CQD-based solar cells. As a result, a best PCE of 11.7% in a lead sulfide (PbS)-based CQD solar cell is achieved and over 90% of the initial performance is retained after 1 year storage under ambient conditions.

AB - In this report, we explore the underlying mechanisms by which doped organic thin films as a top hole-selective layer (HSL) improve the performance and stability of colloidal quantum dot (CQD)-based solar cells. Molecular dynamics-based theoretical studies prove that the hydro/oxo-phobic properties of the HSL serve to efficiently passivate the CQD solid. Furthermore, the robust and outstanding electrical properties of the HSL, simultaneously ensure a high power conversion efficiency (PCE) and increase the stability performance of CQD-based solar cells. As a result, a best PCE of 11.7% in a lead sulfide (PbS)-based CQD solar cell is achieved and over 90% of the initial performance is retained after 1 year storage under ambient conditions.

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DO - 10.1039/c7ee03184j

M3 - Article

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SN - 1754-5692

VL - 11

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EP - 2084

JO - Energy and Environmental Science

JF - Energy and Environmental Science

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ER -

A hydro/oxo-phobic top hole-selective layer for efficient and stable colloidal quantum dot solar cells

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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