Study on the blocking effect of a quantum-dot TiO2 compact layer in dye-sensitized solar cells with ionic liquid electrolyte under low-intensity illumination

Peng Zhai; Hyeonseok Lee; Yu-Ting Huang; Tzu-Chien Wei; Shien-Ping Feng

doi:10.1016/j.jpowsour.2016.08.118

Study on the blocking effect of a quantum-dot TiO₂ compact layer in dye-sensitized solar cells with ionic liquid electrolyte under low-intensity illumination

Peng Zhai, Hyeonseok Lee, Yu-Ting Huang, Tzu-Chien Wei, Shien-Ping Feng^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

32 Citations (Scopus)

Abstract

In this study, ultrasmall and ultrafine TiO₂ quantum dots (QDs) were prepared and used as a high-performance compact layer (CL) in dye-sensitized solar cells (DSCs). We systematically investigated the performance of TiO₂ CL under both low-intensity light and indoor fluorescent light illumination and found that the efficiency of DSCs with the insertion of optimal TiO₂ QDs-CL was increased up to 18.3% under indoor T5 fluorescent light illumination (7000 lux). We clarified the controversy over the blocking effect of TiO₂ CL for the efficiency increment and confirmed that the TiO₂ QDs-CL performed significantly better under low-intensity illumination due to the efficient suppression of electron recombination at the FTO/electrolyte interface. We, for the first time, demonstrate this potential for the application of the DSCs with TiO₂ QDs-CL in the low-intensity light and indoor fluorescent light illumination.

Original language	English
Pages (from-to)	502-509
Journal	Journal of Power Sources
Volume	329
DOIs	https://doi.org/10.1016/j.jpowsour.2016.08.118
Publication status	Published - 15 Oct 2016
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Compact layer
Dye-sensitized solar cells
Electron recombination
Ionic liquid electrolyte
Low-intensity illumination
Quantum-dot TiO2

UN SDGs

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

Access Output

10.1016/j.jpowsour.2016.08.118

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{d813ed682f794c76b39da1e9683d6a97,

title = "Study on the blocking effect of a quantum-dot TiO2 compact layer in dye-sensitized solar cells with ionic liquid electrolyte under low-intensity illumination",

abstract = "In this study, ultrasmall and ultrafine TiO2 quantum dots (QDs) were prepared and used as a high-performance compact layer (CL) in dye-sensitized solar cells (DSCs). We systematically investigated the performance of TiO2 CL under both low-intensity light and indoor fluorescent light illumination and found that the efficiency of DSCs with the insertion of optimal TiO2 QDs-CL was increased up to 18.3% under indoor T5 fluorescent light illumination (7000 lux). We clarified the controversy over the blocking effect of TiO2 CL for the efficiency increment and confirmed that the TiO2 QDs-CL performed significantly better under low-intensity illumination due to the efficient suppression of electron recombination at the FTO/electrolyte interface. We, for the first time, demonstrate this potential for the application of the DSCs with TiO2 QDs-CL in the low-intensity light and indoor fluorescent light illumination.",

keywords = "Compact layer, Dye-sensitized solar cells, Electron recombination, Ionic liquid electrolyte, Low-intensity illumination, Quantum-dot TiO2",

author = "Peng Zhai and Hyeonseok Lee and Yu-Ting Huang and Tzu-Chien Wei and Shien-Ping Feng",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2016",

month = oct,

day = "15",

doi = "10.1016/j.jpowsour.2016.08.118",

language = "English",

volume = "329",

pages = "502--509",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

Study on the blocking effect of a quantum-dot TiO₂ compact layer in dye-sensitized solar cells with ionic liquid electrolyte under low-intensity illumination. / Zhai, Peng; Lee, Hyeonseok; Huang, Yu-Ting et al.
In: Journal of Power Sources, Vol. 329, 15.10.2016, p. 502-509.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Study on the blocking effect of a quantum-dot TiO2 compact layer in dye-sensitized solar cells with ionic liquid electrolyte under low-intensity illumination

AU - Zhai, Peng

AU - Lee, Hyeonseok

AU - Huang, Yu-Ting

AU - Wei, Tzu-Chien

AU - Feng, Shien-Ping

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2016/10/15

Y1 - 2016/10/15

N2 - In this study, ultrasmall and ultrafine TiO2 quantum dots (QDs) were prepared and used as a high-performance compact layer (CL) in dye-sensitized solar cells (DSCs). We systematically investigated the performance of TiO2 CL under both low-intensity light and indoor fluorescent light illumination and found that the efficiency of DSCs with the insertion of optimal TiO2 QDs-CL was increased up to 18.3% under indoor T5 fluorescent light illumination (7000 lux). We clarified the controversy over the blocking effect of TiO2 CL for the efficiency increment and confirmed that the TiO2 QDs-CL performed significantly better under low-intensity illumination due to the efficient suppression of electron recombination at the FTO/electrolyte interface. We, for the first time, demonstrate this potential for the application of the DSCs with TiO2 QDs-CL in the low-intensity light and indoor fluorescent light illumination.

AB - In this study, ultrasmall and ultrafine TiO2 quantum dots (QDs) were prepared and used as a high-performance compact layer (CL) in dye-sensitized solar cells (DSCs). We systematically investigated the performance of TiO2 CL under both low-intensity light and indoor fluorescent light illumination and found that the efficiency of DSCs with the insertion of optimal TiO2 QDs-CL was increased up to 18.3% under indoor T5 fluorescent light illumination (7000 lux). We clarified the controversy over the blocking effect of TiO2 CL for the efficiency increment and confirmed that the TiO2 QDs-CL performed significantly better under low-intensity illumination due to the efficient suppression of electron recombination at the FTO/electrolyte interface. We, for the first time, demonstrate this potential for the application of the DSCs with TiO2 QDs-CL in the low-intensity light and indoor fluorescent light illumination.

KW - Compact layer

KW - Dye-sensitized solar cells

KW - Electron recombination

KW - Ionic liquid electrolyte

KW - Low-intensity illumination

KW - Quantum-dot TiO2

UR - http://www.scopus.com/inward/record.url?scp=84984820164&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84984820164&origin=recordpage

U2 - 10.1016/j.jpowsour.2016.08.118

DO - 10.1016/j.jpowsour.2016.08.118

M3 - RGC 21 - Publication in refereed journal

SN - 0378-7753

VL - 329

SP - 502

EP - 509

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -