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Valence Level Chara...
Valence Level Character in a Mixed Perovskite Material and Determination of the Valence Band Maximum from Photoelectron Spectroscopy : Variation with Photon Energy
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- Philippe, Bertrand, Dr. 1986- (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Jacobsson, T. Jesper, 1984- (author)
- Uppsala universitet,Fysikalisk kemi,École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
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- Correa-Baena, Juan-Pablo (author)
- École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; Massachusetts Institute of Technology, Cambridge, USA
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- Jena, Naresh K. (author)
- Uppsala universitet,Materialteori
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- Banerjee, Amitava (author)
- Uppsala universitet,Materialteori
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- Chakraborty, Sudip (author)
- Uppsala universitet,Materialteori
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- Cappel, Ute B. (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Ahuja, Rajeev, 1965- (author)
- Uppsala universitet,Materialteori
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- Hagfeldt, Anders (author)
- École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
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- Odelius, Michael (author)
- Stockholms universitet,Fysikum,Stockholm University, Stockholm, Sweden
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- Rensmo, Håkan (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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(creator_code:org_t)
- 2017-11-21
- 2017
- English.
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In: The Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 121:48, s. 26655-26666
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Abstract
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- A better understanding of the electronic structure of perovskite materials used in photovoltaic devices is essential for their development and optimization. In this investigation, synchrotron-based photoelectron spectroscopy (PES) was used to experimentally delineate the character and energy position of the valence band structures of a mixed perovskite. The valence band was measured using PES with photon energies ranging from ultraviolet photoelectron spectroscopy (21.2 eV) to hard X-rays (up to 4000 eV), and by taking the variation of the photoionization cross sections into account, we could experimentally determine the inorganic and organic contributions. The experiments were compared to theoretical calculations to further distinguish the role of the different anions in the electronic structure. This work also includes a thorough study of the valence band maximum and its position in relation to the Fermi level, which is crucial for the design and optimization of complete solar cells and their functional properties.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
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- ref (subject category)
- art (subject category)
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Philippe, Bertra ...
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Jacobsson, T. Je ...
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Correa-Baena, Ju ...
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Jena, Naresh K.
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Banerjee, Amitav ...
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Chakraborty, Sud ...
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show more...
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Cappel, Ute B.
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Ahuja, Rajeev, 1 ...
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Hagfeldt, Anders
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Odelius, Michael
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Rensmo, Håkan
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Nano technology
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
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The Journal of P ...
- By the university
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Stockholm University
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Royal Institute of Technology
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Uppsala University