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Charge transport in CdTe solar cells revealed by conductive tomographic atomic force microscopy

Journal Article · · Nature Energy
 [1];  [1];  [2];  [3];  [3];  [1]
  1. Univ. of Connecticut, Storrs, CT (United States). Inst. of Materials Science
  2. Colorado State Univ., Fort Collins, CO (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)

Polycrystalline photovoltaics comprising cadmium telluride (CdTe) represent a growing portion of the solar cell market, yet the physical picture of charge transport through the meso-scale grain morphology remains a topic of debate. It is unknown how thin film morphology affects the transport of electron-hole pairs. Accordingly this study is the first to generate three dimensional images of photocurrent throughout a thin-film solar cell, revealing the profound influence of grain boundaries and stacking faults on device efficiency.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0012704
OSTI ID:
1361263
Report Number(s):
BNL--113894-2017-JA; KC0403020
Journal Information:
Nature Energy, Journal Name: Nature Energy Journal Issue: 11 Vol. 1; ISSN 2058-7546
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (32)

Applications of the FIB lift-out technique for TEM specimen preparation journal May 1998
Recrystallization and sulfur diffusion in CdCl2-treated CdTe/CdS thin films journal July 1997
Key Aspects of CdTe/CdS Solar Cells journal January 2002
Understanding the Beneficial Role of Grain Boundaries in Polycrystalline Solar Cells from Single-Grain-Boundary Scanning Probe Microscopy journal March 2006
How Polycrystalline Devices Can Outperform Single-Crystal Ones: Thin Film CdTe/CdS Solar Cells journal June 2004
Probe-Based 3-D Nanolithography Using Self-Amplified Depolymerization Polymers journal April 2010
Direct Imaging of Cl- and Cu-Induced Short-Circuit Efficiency Changes in CdTe Solar Cells journal May 2014
Mapping photovoltaic performance with nanoscale resolution journal October 2015
Removing Material Using Atomic Force Microscopy with Single- and Multiple-Tip Sources journal October 2011
Transmission electron microscopy of based solar cells journal April 1996
Electron affinity and work function of differently oriented and doped diamond surfaces determined by photoelectron spectroscopy journal November 1998
EBIC and luminescence mapping of CdTe/CdS solar cells journal September 2000
TEM, AFM, and cathodoluminescence characterization of CdTe thin films journal May 2001
Structural and chemical interface characterization of CdTe solar cells by transmission electron microscopy journal May 2003
Losses due to polycrystallinity in thin-film solar cells journal July 1998
Scanning probe microscopy as a scalpel to probe filament formation in conductive bridging memory devices journal May 2014
The activation of thin film CdTe solar cells using alternative chlorine containing compounds journal May 2015
EBIC and luminescence mapping of CdTe/CdS solar cells journal February 2000
Nature of Photovoltaic Action in Dye-Sensitized Solar Cells journal March 2000
Design of Nanostructured Heterojunction Polymer Photovoltaic Devices journal December 2003
Three-Dimensional Observation of the Conductive Filament in Nanoscaled Resistive Memory Devices journal April 2014
Analysis of Bulk and Interface Phenomena in CdTe/CdS Thin-Film Solar Cells journal April 2004
Physics and chemistry of CdTe/CdS thin film heterojunction photovoltaic devices: fundamental and critical aspects journal January 2014
Enhanced electrical properties at boundaries including twin boundaries of polycrystalline CdTe thin-film solar cells journal January 2015
Novel parallel multijunction solar cell journal December 1994
Observation and first-principles calculation of buried wurtzite phases in zinc-blende CdTe thin films journal September 2000
High-resolution work function imaging of single grains of semiconductor surfaces journal April 2002
Electronically active layers and interfaces in polycrystalline devices: Cross-section mapping of CdS/CdTe solar cells journal December 2003
Recombination by grain-boundary type in CdTe journal July 2015
The Effect of Cadmium Chloride Treatment on Close-Spaced Sublimated Cadmium Telluride Thin-Film Solar Cells journal October 2013
Nanoscale Three-Dimensional Patterning of Molecular Resists by Scanning Probes journal April 2010
Scanning probe microscopy of solar cells: From inorganic thin films to organic photovoltaics journal July 2012

Cited By (15)

Nanoscale imaging of charge carrier transport in water splitting photoanodes journal July 2018
Mesoscopic physical removal of material using sliding nano-diamond contacts journal February 2018
Vibrational and electrical properties of Cu2−xTe films: experimental data and first principle calculations journal May 2018
Direct AFM-based nanoscale mapping and tomography of open-circuit voltages for photovoltaics journal January 2018
On the Limits of Scalpel AFM for the 3D Electrical Characterization of Nanomaterials journal November 2018
Emerging Scanning Probe–Based Setups for Advanced Nanoelectronic Research journal August 2019
Applications of Phosphorene and Black Phosphorus in Energy Conversion and Storage Devices journal December 2017
Scanning Probe Microscopy in Materials Science book January 2019
Electrical AFM for the Analysis of Resistive Switching book January 2019
Unravelling complex nature of CdS/CdTe based thin film solar cells journal August 2017
Fossil Fuels Environmental Challenges and the Role of Solar Photovoltaic Technology Advances in Fast Tracking Hybrid Renewable Energy System journal June 2019
Scanning probe microscopy for advanced nanoelectronics journal June 2019
Investigation of AFM-based machining of ferroelectric thin films at the nanoscale journal January 2020
Thickness scaling of ferroelectricity in BiFeO 3 by tomographic atomic force microscopy journal January 2019
Scanning Probe Microscopy in Materials Science journal July 2004

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