CNT@rGO@MoCuSe
Composite as an Efficient Counter Electrode for Quantum Dot-Sensitized
Solar Cells
Posted on 2018-03-13 - 11:37
This paper reports
an efficient and simple strategy for the synthesis of molybdenum copper
selenide (MoCuSe) nanoparticles decorated with a combination of a
carbon nanotube (CNT) network and reduced graphene oxide (rGO) nanosheets
to form an integrated hybrid architecture (CNT@rGO@MoCuSe) using a
two-step hydrothermal approach. The synthesized hybrid CNT@rGO@MoCuSe
material onto the Ni foam substrate is applied successfully as an
effective counter electrode (CE) in quantum dot-sensitized solar cells
(QDSSCs). A highly conductive CNT@rGO network grown on electrochemically
active MoCuSe particles provides a large surface area and exhibits
a rapid electron transport rate at the interface of CE/electrolyte.
As a result, the QDSSC with the designed CNT@rGO@MoCuSe CE shows a
higher power conversion efficiency of 8.28% under 1 sun (100 mW cm–2) irradiation, which is almost double the efficiency
of 4.04% for the QDSSC with the MoCuSe CE. Furthermore, the QDSSC
based on the CNT@rGO@MoCuSe CE delivers superior stability at a working
state for over 100 h. Therefore, CNT@rGO@MoCuSe is very promising
as a stable and efficient CE for QDSSCs and offers new opportunities
for the development of hybrid, effective, and robust materials for
energy-related fields.
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Gopi, Chandu V. V. Muralee; Singh, Saurabh; Eswar Reddy, Araveeti; Kim, Hee-Je (2018). CNT@rGO@MoCuSe
Composite as an Efficient Counter Electrode for Quantum Dot-Sensitized
Solar Cells. ACS Publications. Collection. https://doi.org/10.1021/acsami.7b18526
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AUTHORS (4)
CG
Chandu V. V. Muralee Gopi
SS
Saurabh Singh
AE
Araveeti Eswar Reddy
HK
Hee-Je Kim
KEYWORDS
surface areacounter electrodepaper reportselectron transport rateQuantum Dot-Sensitized Solar CellsMoCuSe CEhydrothermal approachNi foam substratemolybdenum copper selenidepower conversion efficiencycarbon nanotubegraphene oxideMoCuSe particlesEfficient Counter Electrodequantum dot-sensitizedenergy-related fieldsQDSSCCNT100 h