Search: onr:"swepub:oai:DiVA.org:kth-310154" >
Operando structure ...
Operando structure degradation study of PbS quantum dot solar cells
-
Chen, W. (author)
-
Guo, R. (author)
-
Tang, H. (author)
-
show more...
-
Wienhold, K. S. (author)
-
Li, N. (author)
-
Jiang, Z. (author)
-
Tang, J. (author)
-
Jiang, X. (author)
-
Kreuzer, L. P. (author)
-
Liu, H. (author)
-
Schwartzkopf, M. (author)
-
Sun, X. W. (author)
-
- Roth, Stephan V. (author)
- KTH,Biokompositer,Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
-
Wang, K. (author)
-
Xu, B. (author)
-
Müller-Buschbaum, P. (author)
-
show less...
-
(creator_code:org_t)
- 2021
- 2021
- English.
-
In: Energy & Environmental Science. - : Royal Society of Chemistry (RSC). - 1754-5692 .- 1754-5706. ; 14:6, s. 3420-3429
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- PbS quantum dot (QD) solar cells demonstrate great potential in solar energy conversion with a broad and flexible spectral response. Even though long-term storage stabilities of QD solar cells were reported in literature, the operation stability from a more practical aspect, to date, has been not yet investigated. Herein, we observe the structure degradation process of a PbS QD-ink based solar cell during the device operation. Simultaneously to probing the solar cell parameters, the overall structure evolutions of the QDs in both, active layer and hole transport layer of the solar cell are studied with grazing-incidence small- and wide-angle X-ray scattering (GISAXS/GIWAXS). We find a spontaneous decrease of the QD inter-dot distance with an increase in the spatial disorder in the active layer (PbX2-PbS QDs, X = I, and Br) during the operation induced degradation. Consequently, the structure disorder-induced broadening of the energy state distribution is responsible for the decrease in open-circuit voltageVocleading to the device degradation. These findings elucidate the origin of light-soaking as well as the structure degradation of QD ink-based solar cells and indicate that the stability of the device can be realized by the positional stabilization of the QDs in the QD solid.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Energy conversion
- IV-VI semiconductors
- Lead compounds
- Nanocrystals
- Semiconductor quantum dots
- Solar energy
- Stabilization
- X ray scattering
- Hole transport layers
- Long-term storage stability
- Operation stability
- Quantum dot solar cells
- Small and wide angle x ray scatterings
- Solar cell parameters
- Structure degradation
- Structure evolution
- Solar cells
- active layer
- degradation
- fuel cell
- parameterization
- quantum mechanics
- scattering
- spectral analysis
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Chen, W.
-
Guo, R.
-
Tang, H.
-
Wienhold, K. S.
-
Li, N.
-
Jiang, Z.
-
show more...
-
Tang, J.
-
Jiang, X.
-
Kreuzer, L. P.
-
Liu, H.
-
Schwartzkopf, M.
-
Sun, X. W.
-
Roth, Stephan V.
-
Wang, K.
-
Xu, B.
-
Müller-Buschbaum ...
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Other Physics To ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Physical Chemist ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Materials Chemis ...
- Articles in the publication
-
Energy & Environ ...
- By the university
-
Royal Institute of Technology