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

Defects affect the performance of photovoltaic devices, but their exact role is still under scrutiny. Luria et al. use 3D imaging of current pathways in a working CdTe solar cell with nanoscale resolution and observe electrically active defects, which contribute to conduction.

[1]  Philippe Dubois,et al.  Probe‐Based 3‐D Nanolithography Using Self‐Amplified Depolymerization Polymers , 2010, Advanced materials.

[2]  H. Guthrey,et al.  Recombination by grain-boundary type in CdTe , 2015 .

[3]  A. Tseng.  Removing material using atomic force microscopy with single- and multiple-tip sources. , 2011, Small.

[4]  A. Knoll,et al.  Nanoscale Three-Dimensional Patterning of Molecular Resists by Scanning Probes , 2010, Science.

[5]  L. Goux,et al.  Conductive-AFM tomography for 3D filament observation in resistive switching devices , 2013, 2013 IEEE International Electron Devices Meeting.

[6]  A. Tiwari,et al.  Structural and chemical interface characterization of CdTe solar cells by transmission electron microscopy , 2003 .

[7]  M. Green,et al.  Novel parallel multijunction solar cell , 1994 .

[8]  J. Marohn,et al.  Scanning probe microscopy of solar cells: From inorganic thin films to organic photovoltaics , 2012 .

[9]  K. Jones,et al.  TEM, AFM, and cathodoluminescence characterization of CdTe thin films , 2001 .

[10]  L. Schlapbach,et al.  Electron affinity and work function of differently oriented and doped diamond surfaces determined by photoelectron spectroscopy , 1998 .

[11]  J. Granata,et al.  Losses due to polycrystallinity in thin-film solar cells , 1998 .

[12]  R. Birkmire,et al.  Recrystallization and sulfur diffusion in CdCl2‐treated CdTe/CdS thin films , 1997 .

[13]  Arun Majumdar,et al.  Design of Nanostructured Heterojunction Polymer Photovoltaic Devices , 2003 .

[14]  G. West,et al.  The activation of thin film CdTe solar cells using alternative chlorine containing compounds , 2015 .

[15]  J. Cruz-Campa,et al.  Mapping photovoltaic performance with nanoscale resolution , 2016 .

[16]  Ş. Oktik,et al.  Transmission electron microscopy of CdTeCdS based solar cells , 1996 .

[17]  K. Durose,et al.  EBIC and luminescence mapping of CdTe/CdS solar cells , 2000 .

[18]  David Cahen,et al.  Understanding the Beneficial Role of Grain Boundaries in Polycrystalline Solar Cells from Single‐Grain‐Boundary Scanning Probe Microscopy , 2006 .

[19]  S. G. Kumar,et al.  Physics and chemistry of CdTe/CdS thin film heterojunction photovoltaic devices: fundamental and critical aspects , 2014 .

[20]  J. Sites,et al.  Copper inclusion and migration from the back contact in CdTe solar cells , 2004 .

[21]  R. Wendt,et al.  Key Aspects of CdTe/CdS Solar Cells , 2002 .

[22]  Wilfried Vandervorst,et al.  Three-dimensional observation of the conductive filament in nanoscaled resistive memory devices. , 2014, Nano letters.

[23]  Jonathan D. Poplawsky,et al.  Direct Imaging of Cl‐ and Cu‐Induced Short‐Circuit Efficiency Changes in CdTe Solar Cells , 2014 .

[24]  Ş. Oktik,et al.  Transmission electron microscopy of CdTe/CdS based solar cells , 1996 .

[25]  Sidney R. Cohen,et al.  Electronically active layers and interfaces in polycrystalline devices: Cross-section mapping of CdS/CdTe solar cells , 2003 .

[26]  Y. S. Lin,et al.  Enhanced electrical properties at boundaries including twin boundaries of polycrystalline CdTe thin-film solar cells. , 2015, Physical chemistry chemical physics : PCCP.

[27]  A. Jäger-Waldau,et al.  High-resolution work function imaging of single grains of semiconductor surfaces , 2002 .

[28]  D. Cahen,et al.  How Polycrystalline Devices Can Outperform Single‐Crystal Ones: Thin Film CdTe/CdS Solar Cells , 2004 .

[29]  A. Tiwari,et al.  Analysis of Bulk and Interface Phenomena in CdTe/CdS Thin-Film Solar Cells , 2004 .

[30]  Jean-François Guillemoles,et al.  Nature of Photovoltaic Action in Dye-Sensitized Solar Cells , 2000 .

[31]  Wilfried Vandervorst,et al.  Scanning probe microscopy as a scalpel to probe filament formation in conductive bridging memory devices , 2014 .

[32]  Suhuai Wei,et al.  Observation and first-principles calculation of buried wurtzite phases in zinc-blende CdTe thin films , 2000 .

[33]  Steve R Brown,et al.  Applications of the FIB lift‐out technique for TEM specimen preparation , 1998, Microscopy research and technique.

[34]  G. West,et al.  The effect of cadmium chloride treatment on close spaced sublimated cadmium telluride thin film solar cells , 2012, 2012 IEEE 38th Photovoltaic Specialists Conference (PVSC) PART 2.