Enhanced light harvesting and electron lifetime of front side-illuminated CdSe quantum dot-assembled TiO2 nanotube arrays for quantum dot-sensitized solar cells

Sung Woo Jung; Soo Yong Lee; Min Ah Park; Jae Hong Kim; Soon Hyung Kang; Hyunsoo Kim; Chel Jong Choi; Kwang Soon Ahn

doi:10.1080/15421406.2014.933386

Enhanced light harvesting and electron lifetime of front side-illuminated CdSe quantum dot-assembled TiO₂ nanotube arrays for quantum dot-sensitized solar cells

Sung Woo Jung
, Soo Yong Lee
, Min Ah Park
, Jae Hong Kim
, Soon Hyung Kang
, Hyunsoo Kim
, Chel Jong Choi
, Kwang Soon Ahn^*

^*Corresponding author for this work

Department of Semiconductor Science and Technology

Research output: Contribution to journal › Journal article › peer-review

2 Scopus citations

Abstract

CdSe quantum dots (QDs)-assembled, free-standing TiO₂ nanotube arrays (TNTs) are transferred to transparent fluorine-doped tin oxides (FTOs) using a sol-gel process. The TNTs on the FTO (FTO/TNT) not only provide an efficient 1-dimensional electron pathway with few recombination centers, but also allow front side illumination through the transparent FTO, providing a significantly enhanced electron lifetime and light harvesting compared to conventional TNTs on Ti foil and TiO₂ nanoparticles-based mesoporous films on the FTO. These effects help improve significantly the short circuit current and open-circuit voltage of quantum dot-sensitized solar cells (QD-SSCs).

Original language	English
Pages (from-to)	144-153
Number of pages	10
Journal	Molecular Crystals and Liquid Crystals
Volume	598
Issue number	1
DOIs	https://doi.org/10.1080/15421406.2014.933386
State	Published - 2014.07.24

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Electron lifetime
Front side illumination
Light harvesting
Nanotube array
Quantum dot-sensitized solar cell

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Chemistry
Physics & Astronomy

Access to Document

10.1080/15421406.2014.933386

Cite this

@article{60064bad09df40ed8cb9e053f9d3ddeb,

title = "Enhanced light harvesting and electron lifetime of front side-illuminated CdSe quantum dot-assembled TiO2 nanotube arrays for quantum dot-sensitized solar cells",

abstract = "CdSe quantum dots (QDs)-assembled, free-standing TiO2 nanotube arrays (TNTs) are transferred to transparent fluorine-doped tin oxides (FTOs) using a sol-gel process. The TNTs on the FTO (FTO/TNT) not only provide an efficient 1-dimensional electron pathway with few recombination centers, but also allow front side illumination through the transparent FTO, providing a significantly enhanced electron lifetime and light harvesting compared to conventional TNTs on Ti foil and TiO2 nanoparticles-based mesoporous films on the FTO. These effects help improve significantly the short circuit current and open-circuit voltage of quantum dot-sensitized solar cells (QD-SSCs).",

keywords = "Electron lifetime, Front side illumination, Light harvesting, Nanotube array, Quantum dot-sensitized solar cell",

author = "Jung, \{Sung Woo\} and Lee, \{Soo Yong\} and Park, \{Min Ah\} and Kim, \{Jae Hong\} and Kang, \{Soon Hyung\} and Hyunsoo Kim and Choi, \{Chel Jong\} and Ahn, \{Kwang Soon\}",

note = "Publisher Copyright: Copyright {\textcopyright} 2014 Taylor \& Francis Group, LLC.",

year = "2014",

month = jul,

day = "24",

doi = "10.1080/15421406.2014.933386",

language = "English",

volume = "598",

pages = "144--153",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

number = "1",

}

Enhanced light harvesting and electron lifetime of front side-illuminated CdSe quantum dot-assembled TiO₂ nanotube arrays for quantum dot-sensitized solar cells. / Jung, Sung Woo; Lee, Soo Yong; Park, Min Ah et al.
In: Molecular Crystals and Liquid Crystals, Vol. 598, No. 1, 24.07.2014, p. 144-153.

Research output: Contribution to journal › Journal article › peer-review

TY - JOUR

T1 - Enhanced light harvesting and electron lifetime of front side-illuminated CdSe quantum dot-assembled TiO2 nanotube arrays for quantum dot-sensitized solar cells

AU - Jung, Sung Woo

AU - Lee, Soo Yong

AU - Park, Min Ah

AU - Kim, Jae Hong

AU - Kang, Soon Hyung

AU - Kim, Hyunsoo

AU - Choi, Chel Jong

AU - Ahn, Kwang Soon

PY - 2014/7/24

Y1 - 2014/7/24

N2 - CdSe quantum dots (QDs)-assembled, free-standing TiO2 nanotube arrays (TNTs) are transferred to transparent fluorine-doped tin oxides (FTOs) using a sol-gel process. The TNTs on the FTO (FTO/TNT) not only provide an efficient 1-dimensional electron pathway with few recombination centers, but also allow front side illumination through the transparent FTO, providing a significantly enhanced electron lifetime and light harvesting compared to conventional TNTs on Ti foil and TiO2 nanoparticles-based mesoporous films on the FTO. These effects help improve significantly the short circuit current and open-circuit voltage of quantum dot-sensitized solar cells (QD-SSCs).

AB - CdSe quantum dots (QDs)-assembled, free-standing TiO2 nanotube arrays (TNTs) are transferred to transparent fluorine-doped tin oxides (FTOs) using a sol-gel process. The TNTs on the FTO (FTO/TNT) not only provide an efficient 1-dimensional electron pathway with few recombination centers, but also allow front side illumination through the transparent FTO, providing a significantly enhanced electron lifetime and light harvesting compared to conventional TNTs on Ti foil and TiO2 nanoparticles-based mesoporous films on the FTO. These effects help improve significantly the short circuit current and open-circuit voltage of quantum dot-sensitized solar cells (QD-SSCs).

KW - Electron lifetime

KW - Front side illumination

KW - Light harvesting

KW - Nanotube array

KW - Quantum dot-sensitized solar cell

UR - https://www.scopus.com/pages/publications/84945197743

U2 - 10.1080/15421406.2014.933386

DO - 10.1080/15421406.2014.933386

M3 - Journal article

AN - SCOPUS:84945197743

SN - 1542-1406

VL - 598

SP - 144

EP - 153

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

IS - 1

ER -