NDLI: Alignment of energy levels at the ZnS/Cu(In,Ga)Se<sub>2</sub> interface

Please wait, while we are loading the content...

Roles of thermally-induced vertical phase segregation and crystallization on the photovoltaic performance of bulk heterojunction inverted polymer solar cells

Comparative study of plasma-treated non-precious catalysts for oxygen and hydrogen peroxide reduction reactions

Low temperature thin film solid oxide fuel cells with nanoporous ruthenium anodes for direct methane operation

Rapid thermal processing and separation performance of columnar MFI membranes on porous stainless steel tubes

Alignment of energy levels at the ZnS/Cu(In,Ga)Se₂ interface

The mechanism behind the beneficial effect of light soaking on injection efficiency and photocurrent in dye sensitized solar cells

One dimensional MnO₂/titanium nitride nanotube coaxial arrays for high performance electrochemical capacitive energy storage

Tantalum oxide nanomesh as self-standing one nanometre thick electrolyte

Enhancement of fermentative bioenergy (ethanol/hydrogen) production using ultrasonication of Scenedesmus obliquus YSW15 cultivated in swine wastewater effluent

Solution processable nanocarbon platform for polymer solar cells

Evaluation of an industrial pilot scale densified MOF-177 adsorbent as an on-board hydrogen storage medium

Deep eutectic solvents as both precursors and structure directing agents in the synthesis of nitrogen doped hierarchical carbons highly suitable for CO₂ capture

The structure–property relationship of organic dyes in mesoscopic titania solar cells: only one double-bond difference

Hydrolysis of biomass by magnetic solid acid

Sb₂Te₃ and Bi₂Te₃ based thermopower wave sources

Shell-in-shell TiO₂ hollow spheres synthesized by one-pot hydrothermal method for dye-sensitized solar cell application

Evaluation of Pt, Ni, and Ni–Mo electrocatalysts for hydrogen evolution on crystalline Si electrodes

Separation of CO₂ from air by temperature-vacuum swing adsorption using diamine-functionalized silica gel

Releasing 17.8 wt% H₂ from lithium borohydride ammoniate

Catalytic production of levulinic acid from cellulose and other biomass-derived carbohydrates with sulfonated hyperbranched poly(arylene oxindole)s

Multilayer nanoassembly of Sn-nanopillar arrays sandwiched between graphene layers for high-capacity lithium storage

Synthesis, thin-film morphology, and comparative study of bulk and bilayer heterojunction organic photovoltaic devices using soluble diketopyrrolopyrrole molecules

Modification of the hydrogen storage properties of Li₃N by confinement into mesoporous carbons

A conceptual thermal actuation system driven by interface tension of nanofluids

Combination of large nanostructures and complex band structure for high performance thermoelectric lead telluride

Surface and subsurface morphology of operating nanowire:fullerene solar cells revealed by photoconductive-AFM

Hierarchical architectures of porous ZnS-based microspheres by assembly of heterostructure nanoflakes: lateral oriented attachment mechanism and enhanced photocatalytic activity

Role of metal oxide support in redox reactions of iron oxide for chemical looping applications: experiments and density functional theory calculations

Porous LiMn₂O₄ nanorods with durable high-rate capability for rechargeable Li-ion batteries

A novel high-performance photovoltaic–thermoelectric hybrid device

Voltage, stability and diffusion barrier differences between sodium-ion and lithium-ion intercalation materials

Enhanced oxygen reduction activity on surface-decorated perovskite thin films for solid oxide fuel cells

High rate oxygen reduction in non-aqueous electrolytes with the addition of perfluorinated additives

Inside back cover

Back cover

Energy & Environmental Science Vol - 4 Issue - 8

Energy & Environmental Science Vol - 4 Issue - 7

Energy & Environmental Science Vol - 4 Issue - 6

Energy & Environmental Science Vol - 4 Issue - 5

Energy & Environmental Science Vol - 4 Issue - 4

Energy & Environmental Science Vol - 4 Issue - 3

Energy & Environmental Science Vol - 4 Issue - 2

Energy & Environmental Science Vol -3

Energy & Environmental Science Vol -2

Energy & Environmental Science Vol -1

Alignment of energy levels at the ZnS/Cu(In,Ga)Se₂ interface

Content Provider	Royal Society of Chemistry (RSC)
Author	Kim, Ji Hye Shin, Donghyeop Ahn, Byung Tae Larina, Liudmila
Copyright Year	2011
Abstract	Further understanding of the electronic structure at the ZnS/Cu(In,Ga)Se2 interface is necessary to enhance the electron injection across the interface in Cu(In,Ga)Se2 solar cells. The valence band structure and shallow core levels were investigated by ultraviolet photoelectron spectroscopy depth profile analysis with He II line excitation. ZnS film was grown by a chemical bath deposition on a Cu(In,Ga)Se2 absorber deposited by the co-evaporation of Cu, In, Ga, and Se elemental sources. The discontinuity of 2.0 eV in the valence band edge at the ZnS/Cu(In0.7Ga0.3)Se2 interface was directly determined. This type of valence band offset yields a spike conduction band alignment of 0.25 eV. The positions of the VBM and the Zn 3d core-level emission of the buffer underwent the substantial shifts of 0.36 eV and 0.64 eV to a lower binding energy levels during the etching process. The shifts are ascribed to the contribution of the band bending in the ZnS buffer layer and its graded chemical composition. This study is the first to determine the small conduction band offset at the interface formed by the chemical bath deposited ZnS layer and the Cu(In0.7Ga0.3)Se2 absorber. Our results also provide information toward the design optimization of the optoelectronic properties of the ZnS/Cu(In0.7Ga0.3)Se2 interface. To enhance the electron injection from Cu(In0.7Ga0.3)Se2 absorber to ZnS layer further lowering of the energy barrier is required. For this purpose, the bandgap of ZnS should be reduced by controlling the crystal structure and composition or its Fermi level should be upward shifted by appropriate doping.
Starting Page	3487
Ending Page	3493
Page Count	7
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	4
Issue Number	9
Journal	Energy & Environmental Science
DOI	10.1039/c1ee01292d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cu Gallium Electronic band structure Ultraviolet photoelectron spectroscopy Photoemission spectroscopy Chemical bath deposition Electronvolt Valence and conduction bands Gang of Youths Binding energy Chemical milling Band bending Mathematical optimization Optoelectronics Band gap Fermi level Dopant
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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

Interfacial electronic structures revealed at the rubrene/CH₃NH₃PbI₃ interface

EELS and photoemission study of antimony-doped Cd₂SnO₄ ceramics

Interfacial study of Cu₂O/Ga₂O₃/AZO/TiO₂ photocathode for water splitting fabricated by pulsed laser deposition

Enhanced solar performance of chemical bath deposited-Zn(O,S)/Cu(In,Ga)Se₂ solar cells via interface engineering by a wet soaking process

Structural, optical and electronic properties of a Mg incorporated GaN nanowall network

Valence-band offset and forward-backward charge transfer in manganite/NiO and manganite/LaNiO₃ heterostructures

XPS and UPS Investigation of NH4OH-Exposed Cu(In,Ga)Se2 Thin Films

Phase transition, interband electronic transitions and enhanced ferroelectric properties in Mn and Sm co-doped bismuth ferrite films

Insights into the electronic bands of WO₃/BiVO₄/TiO₂, revealing high solar water splitting efficiency

Alignment of energy levels at the ZnS/Cu(In,Ga)Se₂ interface

Similar Documents

Interfacial electronic structures revealed at the rubrene/CH3NH3PbI3 interface

EELS and photoemission study of antimony-doped Cd2SnO4 ceramics

Interfacial study of Cu2O/Ga2O3/AZO/TiO2 photocathode for water splitting fabricated by pulsed laser deposition

Enhanced solar performance of chemical bath deposited-Zn(O,S)/Cu(In,Ga)Se2 solar cells via interface engineering by a wet soaking process

Structural, optical and electronic properties of a Mg incorporated GaN nanowall network

Valence-band offset and forward-backward charge transfer in manganite/NiO and manganite/LaNiO3 heterostructures

XPS and UPS Investigation of NH4OH-Exposed Cu(In,Ga)Se2 Thin Films

Phase transition, interband electronic transitions and enhanced ferroelectric properties in Mn and Sm co-doped bismuth ferrite films

Insights into the electronic bands of WO3/BiVO4/TiO2, revealing high solar water splitting efficiency

Alignment of energy levels at the ZnS/Cu(In,Ga)Se2 interface

Interfacial electronic structures revealed at the rubrene/CH₃NH₃PbI₃ interface

EELS and photoemission study of antimony-doped Cd₂SnO₄ ceramics

Interfacial study of Cu₂O/Ga₂O₃/AZO/TiO₂ photocathode for water splitting fabricated by pulsed laser deposition

Enhanced solar performance of chemical bath deposited-Zn(O,S)/Cu(In,Ga)Se₂ solar cells via interface engineering by a wet soaking process

Valence-band offset and forward-backward charge transfer in manganite/NiO and manganite/LaNiO₃ heterostructures

Insights into the electronic bands of WO₃/BiVO₄/TiO₂, revealing high solar water splitting efficiency

Alignment of energy levels at the ZnS/Cu(In,Ga)Se₂ interface