New insights into the nanostructure of innovative thin film solar cells gained by positron annihilation spectroscopy

S. W.H. Eijt; W. Shi; A. Mannheim; M. Butterling; H. Schut; W. Egger; M. Dickmann; C. Hugenschmidt; B. Shakeri; R. W. Meulenberg; V. Callewaert; R. Saniz; B. Partoens; B. Barbiellini; A. Bansil; J. Melskens; M. Zeman; A. H.M. Smets; M. Kulbak; G. Hodes; D. Cahen; E. Brück

doi:10.1088/1742-6596/791/1/012021

New insights into the nanostructure of innovative thin film solar cells gained by positron annihilation spectroscopy

S. W.H. Eijt, W. Shi, A. Mannheim, M. Butterling, H. Schut, W. Egger, M. Dickmann, C. Hugenschmidt, B. Shakeri, R. W. Meulenberg, V. Callewaert, R. Saniz, B. Partoens, B. Barbiellini, A. Bansil, J. Melskens, M. Zeman, A. H.M. Smets, M. Kulbak, G. HodesD. Cahen, E. Brück

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

Recent studies showed that positron annihilation methods can provide key insights into the nanostructure and electronic structure of thin film solar cells. In this study, positron annihilation lifetime spectroscopy (PALS) is applied to investigate CdSe quantum dot (QD) light absorbing layers, providing evidence of positron trapping at the surfaces of the QDs. This enables one to monitor their surface composition and electronic structure. Further, 2D-Angular Correlation of Annihilation Radiation (2D-ACAR) is used to investigate the nanostructure of divacancies in photovoltaic-high-quality a-Si:H films. The collected momentum distributions were converted by Fourier transformation to the direct space representation of the electron-positron autocorrelation function. The evolution of the size of the divacancies as a function of hydrogen dilution during deposition of a-Si:H thin films was examined. Finally, we present a first positron Doppler Broadening of Annihilation Radiation (DBAR) study of the emerging class of highly efficient thin film solar cells based on perovskites.

Original language	English
Article number	012021
Journal	Journal of Physics: Conference Series
Volume	791
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/791/1/012021
State	Published - 22 Feb 2017
Externally published	Yes
Event	14th International Workshop on Slow Positron Beam Techniques and Applications, SLOPOS 2016 - Matsue, Japan Duration: 22 May 2016 → 27 May 2016

Bibliographical note

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

Funding

The work at Northeastern University was supported by the US Department of Energy (DOE), Office of Science, Basic Energy Sciences grant number DE-FG02-07ER46352 (core research), and benefited from Northeastern University's Advanced Scientific Computation Center (ASCC), the NERSC supercomputing center through DOE grant number DE-AC02-05CH11231, and support (applications to layered materials) from the DOE EFRC: Center for the Computational Design of Functional Layered Materials (CCDM) under DE-SC0012575.

Funders	Funder number
DOE EFRC	DE-SC0012575
U.S. Department of Energy
Office of Science
Basic Energy Sciences	DE-FG02-07ER46352
Seventh Framework Programme	226507, 1206940
Northeastern University	DE-AC02-05CH11231

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1088/1742-6596/791/1/012021

Cite this

Eijt, S. W. H., Shi, W., Mannheim, A., Butterling, M., Schut, H., Egger, W., Dickmann, M., Hugenschmidt, C., Shakeri, B., Meulenberg, R. W., Callewaert, V., Saniz, R., Partoens, B., Barbiellini, B., Bansil, A., Melskens, J., Zeman, M., Smets, A. H. M., Kulbak, M., ... Brück, E. (2017). New insights into the nanostructure of innovative thin film solar cells gained by positron annihilation spectroscopy. Journal of Physics: Conference Series, 791(1), Article 012021. https://doi.org/10.1088/1742-6596/791/1/012021

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title = "New insights into the nanostructure of innovative thin film solar cells gained by positron annihilation spectroscopy",

abstract = "Recent studies showed that positron annihilation methods can provide key insights into the nanostructure and electronic structure of thin film solar cells. In this study, positron annihilation lifetime spectroscopy (PALS) is applied to investigate CdSe quantum dot (QD) light absorbing layers, providing evidence of positron trapping at the surfaces of the QDs. This enables one to monitor their surface composition and electronic structure. Further, 2D-Angular Correlation of Annihilation Radiation (2D-ACAR) is used to investigate the nanostructure of divacancies in photovoltaic-high-quality a-Si:H films. The collected momentum distributions were converted by Fourier transformation to the direct space representation of the electron-positron autocorrelation function. The evolution of the size of the divacancies as a function of hydrogen dilution during deposition of a-Si:H thin films was examined. Finally, we present a first positron Doppler Broadening of Annihilation Radiation (DBAR) study of the emerging class of highly efficient thin film solar cells based on perovskites.",

author = "Eijt, {S. W.H.} and W. Shi and A. Mannheim and M. Butterling and H. Schut and W. Egger and M. Dickmann and C. Hugenschmidt and B. Shakeri and Meulenberg, {R. W.} and V. Callewaert and R. Saniz and B. Partoens and B. Barbiellini and A. Bansil and J. Melskens and M. Zeman and Smets, {A. H.M.} and M. Kulbak and G. Hodes and D. Cahen and E. Br{\"u}ck",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 14th International Workshop on Slow Positron Beam Techniques and Applications, SLOPOS 2016 ; Conference date: 22-05-2016 Through 27-05-2016",

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doi = "10.1088/1742-6596/791/1/012021",

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Eijt, SWH, Shi, W, Mannheim, A, Butterling, M, Schut, H, Egger, W, Dickmann, M, Hugenschmidt, C, Shakeri, B, Meulenberg, RW, Callewaert, V, Saniz, R, Partoens, B, Barbiellini, B, Bansil, A, Melskens, J, Zeman, M, Smets, AHM, Kulbak, M, Hodes, G, Cahen, D & Brück, E 2017, 'New insights into the nanostructure of innovative thin film solar cells gained by positron annihilation spectroscopy', Journal of Physics: Conference Series, vol. 791, no. 1, 012021. https://doi.org/10.1088/1742-6596/791/1/012021

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T1 - New insights into the nanostructure of innovative thin film solar cells gained by positron annihilation spectroscopy

AU - Eijt, S. W.H.

AU - Shi, W.

AU - Mannheim, A.

AU - Butterling, M.

AU - Schut, H.

AU - Egger, W.

AU - Dickmann, M.

AU - Hugenschmidt, C.

AU - Shakeri, B.

AU - Meulenberg, R. W.

AU - Callewaert, V.

AU - Saniz, R.

AU - Partoens, B.

AU - Barbiellini, B.

AU - Bansil, A.

AU - Melskens, J.

AU - Zeman, M.

AU - Smets, A. H.M.

AU - Kulbak, M.

AU - Hodes, G.

AU - Cahen, D.

AU - Brück, E.

PY - 2017/2/22

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N2 - Recent studies showed that positron annihilation methods can provide key insights into the nanostructure and electronic structure of thin film solar cells. In this study, positron annihilation lifetime spectroscopy (PALS) is applied to investigate CdSe quantum dot (QD) light absorbing layers, providing evidence of positron trapping at the surfaces of the QDs. This enables one to monitor their surface composition and electronic structure. Further, 2D-Angular Correlation of Annihilation Radiation (2D-ACAR) is used to investigate the nanostructure of divacancies in photovoltaic-high-quality a-Si:H films. The collected momentum distributions were converted by Fourier transformation to the direct space representation of the electron-positron autocorrelation function. The evolution of the size of the divacancies as a function of hydrogen dilution during deposition of a-Si:H thin films was examined. Finally, we present a first positron Doppler Broadening of Annihilation Radiation (DBAR) study of the emerging class of highly efficient thin film solar cells based on perovskites.

AB - Recent studies showed that positron annihilation methods can provide key insights into the nanostructure and electronic structure of thin film solar cells. In this study, positron annihilation lifetime spectroscopy (PALS) is applied to investigate CdSe quantum dot (QD) light absorbing layers, providing evidence of positron trapping at the surfaces of the QDs. This enables one to monitor their surface composition and electronic structure. Further, 2D-Angular Correlation of Annihilation Radiation (2D-ACAR) is used to investigate the nanostructure of divacancies in photovoltaic-high-quality a-Si:H films. The collected momentum distributions were converted by Fourier transformation to the direct space representation of the electron-positron autocorrelation function. The evolution of the size of the divacancies as a function of hydrogen dilution during deposition of a-Si:H thin films was examined. Finally, we present a first positron Doppler Broadening of Annihilation Radiation (DBAR) study of the emerging class of highly efficient thin film solar cells based on perovskites.

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New insights into the nanostructure of innovative thin film solar cells gained by positron annihilation spectroscopy

Abstract

Bibliographical note

Funding

UN SDGs

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