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Enhancing Optical, ...
Enhancing Optical, Electronic, Crystalline, and Morphological Properties of Cesium Lead Halide by Mn Substitution for High-Stability All-Inorganic Perovskite Solar Cells with Carbon Electrodes
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- Liang, Jia (författare)
- Okinawa Institute of Science and Technology Graduate University,JPN;Rice University,USA.
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- Liu, Zonghao (författare)
- Okinawa Institute of Science and Technology Graduate University, JPN
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- Qiu, Longbin (författare)
- Okinawa Institute of Science and Technology Graduate University, JPN
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- Hawash, Zafer (författare)
- Okinawa Institute of Science and Technology Graduate University, JPN
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- Meng, Lingqiang (författare)
- Okinawa Institute of Science and Technology Graduate University, JPN
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- Wu, Zhifang (författare)
- Okinawa Institute of Science and Technology Graduate University, JPN
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- Jiang, Yan (författare)
- Okinawa Institute of Science and Technology Graduate University, JPN
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- Ono, Luis K. (författare)
- Okinawa Institute of Science and Technology Graduate University, JPN
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- Qi, Yabing (författare)
- Okinawa Institute of Science and Technology Graduate University, JPN
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Okinawa Institute of Science and Technology Graduate University,JPN;Rice University,USA Okinawa Institute of Science and Technology Graduate University, JPN (creator_code:org_t)
- 2018-04-19
- 2018
- Engelska.
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Ingår i: Advanced Energy Materials. - : Wiley-VCH Verlagsgesellschaft. - 1614-6832 .- 1614-6840. ; 8:20
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this work all-inorganic perovskite CsPbIBr2 are doped with Mn to compensate their shortcomings in band structure for the application of perovskite solar cells (PSCs). The novel Mn-doped all-inorganic perovskites, CsPb1-xMnxI1+2xBr2-2x, are prepared in ambient atmosphere. As the concentration of Mn2+ ions increases, the bandgaps of CsPb1-xMnxI1+2xBr2-2x decrease from 1.89 to 1.75 eV. Additionally, when the concentration of Mn dopants is appropriate, this novel Mn-doped all-inorganic perovskite film shows better crystallinity and morphology than its undoped counterpart. These advantages alleviate the energy loss in hole transfer and facilitate the charge-transfer in perovskites, therefore, PSCs based on these novel CsPb1-xMnxI1+2xBr2-2x perovskite films display better photovoltaic performance than the undoped CsPbIBr2 perovskite films. The reference CsPbIBr2 cell reaches a power conversion efficiency (PCE) of 6.14%, comparable with the previous reports. The CsPb1-xMnxI1+2xBr2-2x cells reach the highest PCE of 7.36% (when x= 0.005), an increase of 19.9% in PCE. Furthermore, the encapsulated CsPb0.995Mn0.005I1.01Br1.99 cells exhibit good stability in ambient atmosphere. The storage stability measurements on the encapsulated PSCs reveal that PCE is dropped by only 8% of the initial value after >300 h in ambient. Such improved efficiency and stability are achieved using low-cost carbon electrodes (without expensive hole transport materials and Au electrodes).
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- all-inorganic perovskites
- carbon electrodes
- doping
- Mn
- perovskite solar cells
- Materials Engineering
- Materialteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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