Surface and interfacial engineering for aqueous-processed quantum dots-sensitized solar cell with efficiency approaching 11 %

Zeng, Heng-Huei; Rasal, Akash S.; Alemayehu Abate, Mulu; Vithal Ghule, Anil; Chang, Jia-Yaw

doi:10.1016/j.cej.2024.153702

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.153702

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Surface and interfacial engineering for aqueous-processed quantum dots-sensitized solar cell with efficiency approaching 11 %

Heng-Huei Zeng,

Akash S. Rasal,

Mulu Alemayehu Abate

et al.

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Optimizing Energy Solutions: Mott–Schottky Engineered 1D/3D CoWO₄(OH)₂·H₂O/MoS₂ Heterostructure for Advanced Energy Storage and Conversion Application

Kizhepat,

Rasal,

Chodankar

et al. 2024

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Heterostructure engineering offers a powerful approach to creating innovative electrocatalysts. By combining different materials, it can achieve synergistic effects that enhance both charge storage and electrocatalytic activity. In this work, it is capitalized on this concept by designing a 1D/3D CoWO4(OH)2·H2O/molybdenum disulfide (CTH/MoS2) heterostructure. It is achieved this by in situ depositing 3D MoS2 nanoflowers on 1D CTH nanorods. To explore the impact of precursor choice, various sulfur (S) sources is investigated. Interestingly, the S precursor influenced the dimensionality of the MoS2 component. For example, L‐cysteine (L‐cys), and glutathione (GSH) resulted in 0D morphologies, thiourea (TU) led to a 2D structure, and thioacetamide (TAA) yielded a desirable 3D architecture. Notably, the 1D/3D CTH/MoS2‐TAA heterostructure exhibited exceptional performance in both supercapacitors (SCs) and quantum dot‐sensitized solar cells (QDSSCs). This achievement can be attributed to several factors: the synergetic effect between 1D CTH and 3D MoS2, improved accessibility due to the multi‐dimensional structure, and a tailored electronic structure facilitated by the Mott–Schottky (M–S) interaction arising from the different material Fermi levels. This interaction further enhances conductivity, ultimately leading to the observed high specific capacity in SCs (154.44 mAh g−1 at 3 mA cm−2) and remarkable photovoltaic efficiency in QDSSCs (6.48%).

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Optimizing Energy Solutions: Mott–Schottky Engineered 1D/3D CoWO₄(OH)₂·H₂O/MoS₂ Heterostructure for Advanced Energy Storage and Conversion Application

Kizhepat,

Rasal,

Chodankar

et al. 2024

Small

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Recent progress in I-III-VI colloidal quantum dots-integrated solar cells

Du,

2025

Current Opinion in Colloid & Interface Science

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A review of calibration standards, devices and methods for gas flow in semiconductor manufacturing processes

Zhang,

Hui,

et al. 2025

Flow Measurement and Instrumentation

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Surface and interfacial engineering for aqueous-processed quantum dots-sensitized solar cell with efficiency approaching 11 %

Cited by 3 publications

References 43 publications

Optimizing Energy Solutions: Mott–Schottky Engineered 1D/3D CoWO₄(OH)₂·H₂O/MoS₂ Heterostructure for Advanced Energy Storage and Conversion Application

Optimizing Energy Solutions: Mott–Schottky Engineered 1D/3D CoWO₄(OH)₂·H₂O/MoS₂ Heterostructure for Advanced Energy Storage and Conversion Application

Recent progress in I-III-VI colloidal quantum dots-integrated solar cells

A review of calibration standards, devices and methods for gas flow in semiconductor manufacturing processes

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Surface and interfacial engineering for aqueous-processed quantum dots-sensitized solar cell with efficiency approaching 11 %

Cited by 3 publications

References 43 publications

Optimizing Energy Solutions: Mott–Schottky Engineered 1D/3D CoWO4(OH)2·H2O/MoS2 Heterostructure for Advanced Energy Storage and Conversion Application

Optimizing Energy Solutions: Mott–Schottky Engineered 1D/3D CoWO4(OH)2·H2O/MoS2 Heterostructure for Advanced Energy Storage and Conversion Application

Recent progress in I-III-VI colloidal quantum dots-integrated solar cells

A review of calibration standards, devices and methods for gas flow in semiconductor manufacturing processes

Contact Info

Product

Resources

About

Optimizing Energy Solutions: Mott–Schottky Engineered 1D/3D CoWO₄(OH)₂·H₂O/MoS₂ Heterostructure for Advanced Energy Storage and Conversion Application

Optimizing Energy Solutions: Mott–Schottky Engineered 1D/3D CoWO₄(OH)₂·H₂O/MoS₂ Heterostructure for Advanced Energy Storage and Conversion Application