Visualization of Current and Mapping of Elements in Quantum Dot Solar Cells
Abstract
The delicate influence of properties such as high surface state density and organic-inorganic boundaries on the individual quantum dot electronic structure complicates pursuits toward forming quantitative models of quantum dot thin films ab initio. Our report describes the application of electron beam-induced current (EBIC) microscopy to depleted-heterojunction colloidal quantum dot photovoltaics (DH-CQD PVs), a technique which affords one a map of current production within the active layer of a PV device. The effects of QD sample size polydispersity as well as layer thickness in CQD active layers as they pertain to current production within these PVs are imaged and explained. The results from these experiments compare well with previous estimations, and confirm the ability of EBIC to function as a valuable empirical tool for the design and betterment of DH-CQD PVs. Lastly, extensive and unexpected PbS QD penetration into the mesoporous TiO2 layer is observed through imaging of device cross sections by energy-dispersive X-ray spectroscopy combined with scanning transmission electron microscopy. Finally, the effects of this finding are discussed and corroborated with the EBIC studies on similar devices.
- Authors:
-
- Vanderbilt Univ., Nashville, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Vanderbilt Univ., Nashville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1261511
- Grant/Contract Number:
- AC05-00OR22725; EPS-1004083
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Functional Materials
- Additional Journal Information:
- Journal Volume: 26; Journal Issue: 6; Journal ID: ISSN 1616-301X
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; EBIC; EDS elemental maps; photovoltaics; quantum dots; ELECTRON INJECTION; TIO2 ELECTRODES; NANOPARTICLES; SEPARATION; SOLIDS
Citation Formats
Niezgoda, J. Scott, Ng, Amy, Poplawsky, Jonathan D., McBride, James R., Pennycook, Stephen J., and Rosenthal, Sandra J. Visualization of Current and Mapping of Elements in Quantum Dot Solar Cells. United States: N. p., 2015.
Web. doi:10.1002/adfm.201503839.
Niezgoda, J. Scott, Ng, Amy, Poplawsky, Jonathan D., McBride, James R., Pennycook, Stephen J., & Rosenthal, Sandra J. Visualization of Current and Mapping of Elements in Quantum Dot Solar Cells. United States. https://doi.org/10.1002/adfm.201503839
Niezgoda, J. Scott, Ng, Amy, Poplawsky, Jonathan D., McBride, James R., Pennycook, Stephen J., and Rosenthal, Sandra J. Thu .
"Visualization of Current and Mapping of Elements in Quantum Dot Solar Cells". United States. https://doi.org/10.1002/adfm.201503839. https://www.osti.gov/servlets/purl/1261511.
@article{osti_1261511,
title = {Visualization of Current and Mapping of Elements in Quantum Dot Solar Cells},
author = {Niezgoda, J. Scott and Ng, Amy and Poplawsky, Jonathan D. and McBride, James R. and Pennycook, Stephen J. and Rosenthal, Sandra J.},
abstractNote = {The delicate influence of properties such as high surface state density and organic-inorganic boundaries on the individual quantum dot electronic structure complicates pursuits toward forming quantitative models of quantum dot thin films ab initio. Our report describes the application of electron beam-induced current (EBIC) microscopy to depleted-heterojunction colloidal quantum dot photovoltaics (DH-CQD PVs), a technique which affords one a map of current production within the active layer of a PV device. The effects of QD sample size polydispersity as well as layer thickness in CQD active layers as they pertain to current production within these PVs are imaged and explained. The results from these experiments compare well with previous estimations, and confirm the ability of EBIC to function as a valuable empirical tool for the design and betterment of DH-CQD PVs. Lastly, extensive and unexpected PbS QD penetration into the mesoporous TiO2 layer is observed through imaging of device cross sections by energy-dispersive X-ray spectroscopy combined with scanning transmission electron microscopy. Finally, the effects of this finding are discussed and corroborated with the EBIC studies on similar devices.},
doi = {10.1002/adfm.201503839},
journal = {Advanced Functional Materials},
number = 6,
volume = 26,
place = {United States},
year = {Thu Dec 17 00:00:00 EST 2015},
month = {Thu Dec 17 00:00:00 EST 2015}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 3 works
Citation information provided by
Web of Science
Web of Science
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Depleted-Heterojunction Colloidal Quantum Dot Solar Cells
journal, May 2010
- Pattantyus-Abraham, Andras G.; Kramer, Illan J.; Barkhouse, Aaron R.
- ACS Nano, Vol. 4, Issue 6
Depleted Bulk Heterojunction Colloidal Quantum Dot Photovoltaics
journal, May 2011
- Barkhouse, D. Aaron R.; Debnath, Ratan; Kramer, Illan J.
- Advanced Materials, Vol. 23, Issue 28
Ordered Nanopillar Structured Electrodes for Depleted Bulk Heterojunction Colloidal Quantum Dot Solar Cells
journal, March 2012
- Kramer, Illan J.; Zhitomirsky, David; Bass, John D.
- Advanced Materials, Vol. 24, Issue 17
Hybrid passivated colloidal quantum dot solids
journal, July 2012
- Ip, Alexander H.; Thon, Susanna M.; Hoogland, Sjoerd
- Nature Nanotechnology, Vol. 7, Issue 9
Colloidal-quantum-dot photovoltaics using atomic-ligand passivation
journal, September 2011
- Tang, Jiang; Kemp, Kyle W.; Hoogland, Sjoerd
- Nature Materials, Vol. 10, Issue 10
Depleted Bulk Heterojunctions in Thermally Annealed PbS Quantum Dot Solar Cells
journal, June 2014
- Ding, Bo; Wang, Yang; Huang, Po-Shun
- The Journal of Physical Chemistry C, Vol. 118, Issue 27
Improved performance and stability in quantum dot solar cells through band alignment engineering
journal, May 2014
- Chuang, Chia-Hao M.; Brown, Patrick R.; Bulović, Vladimir
- Nature Materials, Vol. 13, Issue 8, p. 796-801
Elucidating the charge carrier separation and working mechanism of CH3NH3PbI3−xClx perovskite solar cells
journal, March 2014
- Edri, Eran; Kirmayer, Saar; Mukhopadhyay, Sabyasachi
- Nature Communications, Vol. 5, Issue 1
Direct Electronic Property Imaging of a Nanocrystal-Based Photovoltaic Device by Electron Beam-Induced Current via Scanning Electron Microscopy
journal, February 2014
- Ng, Amy; Poplawsky, Jonathan D.; Li, Chen
- The Journal of Physical Chemistry Letters, Vol. 5, Issue 5
Colloidal Quantum Dot Photovoltaics: The Effect of Polydispersity
journal, January 2012
- Zhitomirsky, David; Kramer, Illan J.; Labelle, André J.
- Nano Letters, Vol. 12, Issue 2
Electron Injection from Colloidal PbS Quantum Dots into Titanium Dioxide Nanoparticles
journal, October 2008
- Hyun, Byung-Ryool; Zhong, Yu-Wu.; Bartnik, Adam C.
- ACS Nano, Vol. 2, Issue 11
Charge-extraction strategies for colloidal quantum dot photovoltaics
journal, February 2014
- Lan, Xinzheng; Masala, Silvia; Sargent, Edward H.
- Nature Materials, Vol. 13, Issue 3
Vectorial electron injection into transparent semiconductor membranes and electric field effects on the dynamics of light-induced charge separation
journal, November 1990
- O'Regan, Brian.; Moser, Jacques.; Anderson, Marc.
- The Journal of Physical Chemistry, Vol. 94, Issue 24
Enhancement of electron transport in nano-porous TiO2 electrodes by dye adsorption
journal, September 2003
- Nakade, S.; Saito, Y.; Kubo, W.
- Electrochemistry Communications, Vol. 5, Issue 9
Electric Potential Distribution and Short-Range Screening in Nanoporous TiO 2 Electrodes
journal, October 1997
- Zaban, Arie; Meier, Andreas; Gregg, Brian A.
- The Journal of Physical Chemistry B, Vol. 101, Issue 40
Ambient-Processed Colloidal Quantum Dot Solar Cells via Individual Pre-Encapsulation of Nanoparticles
journal, May 2010
- Debnath, Ratan; Tang, Jiang; Barkhouse, D. Aaron
- Journal of the American Chemical Society, Vol. 132, Issue 17
Infrared Colloidal Quantum Dots for Photovoltaics: Fundamentals and Recent Progress
journal, September 2010
- Tang, Jiang; Sargent, Edward H.
- Advanced Materials, Vol. 23, Issue 1
Colloidal quantum dot solar cells
journal, February 2012
- Sargent, Edward H.
- Nature Photonics, Vol. 6, Issue 3
A Charge-Orbital Balance Picture of Doping in Colloidal Quantum Dot Solids
journal, August 2012
- Voznyy, Oleksandr; Zhitomirsky, David; Stadler, Philipp
- ACS Nano, Vol. 6, Issue 9
Graded Doping for Enhanced Colloidal Quantum Dot Photovoltaics
journal, February 2013
- Ning, Zhijun; Zhitomirsky, David; Adinolfi, Valerio
- Advanced Materials, Vol. 25, Issue 12
Improved Current Extraction from ZnO/PbS Quantum Dot Heterojunction Photovoltaics Using a MoO 3 Interfacial Layer
journal, July 2011
- Brown, Patrick R.; Lunt, Richard R.; Zhao, Ni
- Nano Letters, Vol. 11, Issue 7
PbS colloidal quantum dot/ZnO-based bulk-heterojunction solar cells with high stability under continuous light soaking: PbS colloidal quantum dot/ZnO-based bulk-heterojunction solar cells with high stability under continuous light soaking
journal, November 2014
- Wang, Haibin; Kubo, Takaya; Nakazaki, Jotaro
- physica status solidi (RRL) - Rapid Research Letters, Vol. 8, Issue 12
Colloidal PbS Nanocrystals with Size-Tunable Near-Infrared Emission: Observation of Post-Synthesis Self-Narrowing of the Particle Size Distribution
journal, November 2003
- Hines, M. A.; Scholes, G. D.
- Advanced Materials, Vol. 15, Issue 21, p. 1844-1849
Works referencing / citing this record:
Manipulating Depletion Region of Aqueous-Processed Nanocrystals Solar Cells with Widened Fermi Level Offset
journal, October 2018
- Wang, Lijing; Chen, Nannan; Jin, Gan
- Small, Vol. 14, Issue 47