NDLI: Improved photovoltaic performance and stability of quantum dot sensitized solar cells using Mn–ZnSe shell structure with enhanced light absorption and recombination control

Content Provider	Royal Society of Chemistry (RSC)
Author	Venkata-Haritha, M. Gopi, Chandu V. V. M. Kim, Hee-Je Kim, Soo-Kyoung
Copyright Year	2015
Abstract	To make quantum-dot-sensitized solar cells (QDSSCs) competitive, photovoltaic parameters comparable to those of other emerging solar cell technologies are necessary. In the present study, ZnSe was used as an alternative to ZnS, one of the most widely used passivation materials in QDSSCs. ZnSe was deposited on a TiO2–CdS–CdSe photoanode to form a core–shell structure, which was more efficient in terms of reducing the electron recombination in QDSSCs. The development of an efficient passivation layer is a requirement for preventing recombination processes in order to attain high-performance and stable QDSSCs. A layer of inorganic Mn–ZnSe was applied to a QD-sensitized photoanode to enhance the adsorption and strongly inhibit interfacial recombination processes in QDSSCs, which greatly improved the power conversion efficiency. Impedance spectroscopy revealed that the combined Mn doping with ZnSe treatment reduces interfacial recombination and increases charge collection efficiency compared with Mn–ZnS, ZnS, and ZnSe. A solar cell based on the CdS–CdSe–Mn–ZnSe photoanode yielded excellent performance with a solar power conversion efficiency of 5.67%, Voc of 0.584 V, and Jsc of 17.59 mA cm−2. Enhanced electron transport and reduced electron recombination are responsible for the improved Jsc and Voc of the QDSSCs. The effective electron lifetime of the device with Mn–ZnSe was higher than those with Mn–ZnS, ZnSe, and ZnS, leading to more efficient electron–hole separation and slower electron recombination.
Starting Page	12552
Ending Page	12563
Page Count	12
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	7
Issue Number	29
Journal	Nanoscale
DOI	10.1039/c5nr03291a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Solar cell Dielectric spectroscopy Adsorption Carrier generation and recombination Dopant Jsc Passivation (chemistry)
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Efficiency Enhanced Colloidal Mn-Doped Type II Core/Shell ZnSe/CdS Quantum Dot Sensitized Hybrid Solar Cells

Reduced charge recombination in a co-sensitized quantum dot solar cell with two different sizes of CdSe quantum dot

N-Ion-implanted TiO₂ photoanodes in quantum dot-sensitized solar cells

A ZnS and metal hydroxide composite passivation layer for recombination control in high efficiency quantum dot sensitized solar cells

Zn-doped nanocrystalline TiO₂ films for CdS quantum dot sensitized solar cells

High performance of TiO₂/CdS quantum dot sensitized solar cells with a Cu–ZnS passivation layer

Enhanced photovoltaic performance of a quantum dot-sensitized solar cell using a Nb-doped $TiO_{2}$ electrode

ZnO/TiO₂ nanocable structured photoelectrodes for CdS/CdSe quantum dot co-sensitized solar cells

The effect of manganese in a CdS/PbS colloidal quantum dot sensitized TiO₂ solar cell to enhance its efficiency

Improved photovoltaic performance and stability of quantum dot sensitized solar cells using Mn–ZnSe shell structure with enhanced light absorption and recombination control

Similar Documents

Efficiency Enhanced Colloidal Mn-Doped Type II Core/Shell ZnSe/CdS Quantum Dot Sensitized Hybrid Solar Cells

Reduced charge recombination in a co-sensitized quantum dot solar cell with two different sizes of CdSe quantum dot

N-Ion-implanted TiO2 photoanodes in quantum dot-sensitized solar cells

A ZnS and metal hydroxide composite passivation layer for recombination control in high efficiency quantum dot sensitized solar cells

Zn-doped nanocrystalline TiO2 films for CdS quantum dot sensitized solar cells

High performance of TiO2/CdS quantum dot sensitized solar cells with a Cu–ZnS passivation layer

Enhanced photovoltaic performance of a quantum dot-sensitized solar cell using a Nb-doped $TiO_{2}$ electrode

ZnO/TiO2 nanocable structured photoelectrodes for CdS/CdSe quantum dot co-sensitized solar cells

The effect of manganese in a CdS/PbS colloidal quantum dot sensitized TiO2 solar cell to enhance its efficiency

Improved photovoltaic performance and stability of quantum dot sensitized solar cells using Mn–ZnSe shell structure with enhanced light absorption and recombination control

N-Ion-implanted TiO₂ photoanodes in quantum dot-sensitized solar cells

Zn-doped nanocrystalline TiO₂ films for CdS quantum dot sensitized solar cells

High performance of TiO₂/CdS quantum dot sensitized solar cells with a Cu–ZnS passivation layer

ZnO/TiO₂ nanocable structured photoelectrodes for CdS/CdSe quantum dot co-sensitized solar cells

The effect of manganese in a CdS/PbS colloidal quantum dot sensitized TiO₂ solar cell to enhance its efficiency