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Quantum dots and their applications
Published in Alexander V. Vakhrushev, Suresh C. Ameta, Heru Susanto, A. K. Haghi, Advances in Nanotechnology and the Environmental Sciences, 2019
Rakshit Ameta, Kanchan Kumari Jat, Jayesh Bhatt, Suresh C. Ameta
Colloidal quantum dots (CQDs) can be considered promising materials for large-scale and low-cost photovoltaics. The development of quantum dot inks has overcome the prior necessity for solid-state exchanges, which has a high cost, complexity, and morphological disruption to the quantum dot solid, but these inks remain limited because of the photocarrier diffusion length. Yang et al. [4] devised a strategy based on n- and p-type ligand to judiciously shift the quantum dot band alignment. It leads to ink-based materials, which retained the independent surface functionalization of QDs creating distinguishable donor and acceptor domains for bulk heterojunctions. Interdot carrier transfer and exciton dissociation were confirmed by efficient charge separation at the nanoscale interfaces between the two classes of QDs. A first mixed-quantum-dot solar cell was fabricated to achieve a power conversion of 10.4%, surpassing the performance of exciting bulk heterojunction quantum dot devices almost two-fold, indicating that there is a great potential of the mixed-quantum-dot approach.
Nanoelectronics: Basic Concepts, Approaches, and Applications
Published in Rakesh K. Sindhu, Mansi Chitkara, Inderjeet Singh Sandhu, Nanotechnology, 2021
Balwinder Kaur, Radhika Marwaha, Subhash Chand, Balraj Saini
A quantum dot solar cell (QDSC) utilizes quantum dots as the absorbing photovoltaic material. This new invention replaces the bulky materials such as silicon or copper indium gallium selenide used in conventional solar cell devices. By 2030, solar PV market will grow by a multiple of 10’s. QDSCs can be a cost-effective and highly efficient technology.
Nanotechnology – Disruptive Technologies for Electric Utility Systems. Challenges and Opportunities.
Published in Matthew Laudon, Bart Romanowicz, 2007 Cleantech Conference and Trade Show Cleantech 2007, 2019
John Stringer, Roger H. Richman
An embodiment of a quantum dot solar cell is a nanocomposite consisting of a porous oxide and a conjugated polymer. SnO2 films with pore diameters of ~100 nm have been fabricated. Intercalation of polymers into the pores by absorption from solution yields structures with ~75% of the free volume filled with polymer [12].
Strategy trends of core/multiple shell for quantum dot-based heterojunction thin film solar cells
Published in Australian Journal of Electrical and Electronics Engineering, 2022
Ahmed Thabet Mohamed, S. Abdelhady
Here, is the shunt resistance The output power density of the new heterojunction quantum dot solar cell based on metallic-semiconductor core/shell absorber layer structure and quantum dot window layer