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Afshari H, Durant BK, Kirmani AR, Chacon SA, Mahoney J, Whiteside VR, Scheidt RA, Beard MC, Luther JM, Sellers IR. Temperature-Dependent Carrier Extraction and the Effects of Excitons on Emission and Photovoltaic Performance in Cs 0.05FA 0.79MA 0.16Pb(I 0.83Br 0.17) 3 Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2022; 14:44358-44366. [PMID: 36150132 DOI: 10.1021/acsami.2c11657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The photovoltaic parameters of triple cation perovskite [Cs0.05FA0.79MA0.16Pb(I0.83Br0.17)3] solar cells are investigated focusing on the electro-optical properties and differences in performance at low and high temperatures. The signature of a parasitic barrier to carrier extraction is observed at low temperatures, which results in a loss of performance at T < 200 K. Intensity-dependent measurements indicate extraction across this parasitic interface is limited by a combination of the exciton binding energy and thermionic emission. However, the photovoltaic performance of the device is recovered at low intensity─where the photocarrier generation rate threshold is lower than the thermionic extraction rate. Loss of solar cell performance is also observed to be strongly correlated to an increase in photoluminescence intensity, indicating inhibited carrier extraction results in strong radiative recombination and that these systems do not appear to be limited by significant thermally activated non-radiative processes. Evidence of limited carrier extraction due to excitonic effects is also observed with a strong anti-correlation in photoluminescence and carrier extraction observed at lower temperatures.
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Affiliation(s)
- Hadi Afshari
- Department of Physics & Astronomy, University of Oklahoma, Norman 73019, Oklahoma, United States
| | - Brandon K Durant
- Department of Physics & Astronomy, University of Oklahoma, Norman 73019, Oklahoma, United States
| | - Ahmad R Kirmani
- National Renewable Energy Laboratory (NREL), Golden 80401, Colorado, United States
| | - Sergio A Chacon
- Department of Physics & Astronomy, University of Oklahoma, Norman 73019, Oklahoma, United States
| | - John Mahoney
- Department of Physics & Astronomy, University of Oklahoma, Norman 73019, Oklahoma, United States
| | - Vincent R Whiteside
- Department of Physics & Astronomy, University of Oklahoma, Norman 73019, Oklahoma, United States
| | - Rebecca A Scheidt
- National Renewable Energy Laboratory (NREL), Golden 80401, Colorado, United States
| | - Matthew C Beard
- National Renewable Energy Laboratory (NREL), Golden 80401, Colorado, United States
| | - Joseph M Luther
- National Renewable Energy Laboratory (NREL), Golden 80401, Colorado, United States
| | - Ian R Sellers
- Department of Physics & Astronomy, University of Oklahoma, Norman 73019, Oklahoma, United States
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Romano V, Agresti A, Verduci R, D’Angelo G. Advances in Perovskites for Photovoltaic Applications in Space. ACS ENERGY LETTERS 2022; 7:2490-2514. [PMID: 35990414 PMCID: PMC9380018 DOI: 10.1021/acsenergylett.2c01099] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Perovskites have emerged as promising light harvesters in photovoltaics. The resulting solar cells (i) are thin and lightweight, (ii) can be produced through solution processes, (iii) mainly use low-cost raw materials, and (iv) can be flexible. These features make perovskite solar cells intriguing as space technologies; however, the extra-terrestrial environment can easily cause the premature failure of devices. In particular, the presence of high-energy radiation is the most dangerous factor that can damage space technologies. This Review discusses the status and perspectives of perovskite photovoltaics in space applications. The main factors used to describe the space environment are introduced, and the results concerning the radiation hardness of perovskites toward protons, electrons, neutrons, and γ-rays are presented. Emphasis is given to the physicochemical processes underlying radiation damage in such materials. Finally, the potential use of perovskite solar cells in extra-terrestrial conditions is discussed by considering the effects of the space environment on the choice of the architecture and components of the devices.
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Affiliation(s)
- Valentino Romano
- Department
of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Department
of ChiBioFarAm, University of Messina, 98166 Messina, Italy
| | - Antonio Agresti
- CHOSE
(Center for Hibrid and Organic Solar Energy), Department of Electronics
Engineering, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Rosaria Verduci
- Department
of ChiBioFarAm, University of Messina, 98166 Messina, Italy
| | - Giovanna D’Angelo
- Department
of Mathematical and Computer Sciences, Physical Sciences and Earth
Sciences, University of Messina, 98166 Messina, Italy
- CNR,
Institute for Chemical-Physical Processes (IPCF), 98158 Messina, Italy
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Li Z, Peng G, Chen H, Shi C, Li Z, Jin Z. Metal‐Free PAZE‐NH4X3·H2O Perovskite for Flexible Transparent X‐ray Detection and Imaging. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhizai Li
- Lanzhou University Structure Design, MoE & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou 730000, China Lanzhou Tianshui South Road No. 222, Lanzhou, Ganshu Province, China, 730000 730000 Lanzhou CHINA
| | - Guoqiang Peng
- Lanzhou University Structure Design, MoE & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou 730000, China Lanzhou Tianshui South Road No. 222, Lanzhou, Ganshu Province, China, 730000 730000 Lanzhou CHINA
| | - Huanyu Chen
- Lanzhou University Structure Design, MoE & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou 730000, China Lanzhou Tianshui South Road No. 222, Lanzhou, Ganshu Province, China, 730000 730000 Lanzhou CHINA
| | - Chang Shi
- Lanzhou University Structure Design, MoE & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou 730000, China Lanzhou Tianshui South Road No. 222, Lanzhou, Ganshu Province, China, 730000 730000 Lanzhou CHINA
| | - Zhenhua Li
- Lanzhou University Structure Design, MoE & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou 730000, China Lanzhou Tianshui South Road No. 222, Lanzhou, Ganshu Province, China, 730000 730000 Lanzhou CHINA
| | - Zhiwen Jin
- Lanzhou University School of Physical Science and Technology Lanzhou University, Lanzhou 730000, P. R. China. Lanzhou CHINA
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Li Z, Peng G, Chen H, Shi C, Li Z, Jin Z. Metal-Free PAZE-NH 4 X 3 ⋅H 2 O Perovskite for Flexible Transparent X-ray Detection and Imaging. Angew Chem Int Ed Engl 2022; 61:e202207198. [PMID: 35726524 DOI: 10.1002/anie.202207198] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Indexed: 11/11/2022]
Abstract
Metal-free perovskites are of interest for their chemical diversity and eco-friendly properties, and recently have been used for X-ray detection with superior carrier behavior. However, the size and shape complexity of the organic components results in difficulties in evaluating their stability in high-energy radiation. Herein, we introduce multiple hydrogen-bond metal-free PAZE-NH4 X3 ⋅H2 O perovskite, where H2 O leads to more hydrogen bonds appearing between organic molecules and the perovskite host. As suggested by the theoretical calculations, multiple hydrogen bonds promote stiffness of the lattice, and increase the diffusion barrier to inhibit ionic migration. Then, low trap density, high μτ products and structural flexibility of PAZE-NH4 Br3 ⋅H2 O give a flexible X-ray detector with the highest sensitivity of 3708 μC Gyair -1 cm-2 , ultra-low detection limit of 0.19 μGyair -1 s-1 and superior spatial resolution of 5.0 lp mm-1 .
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Affiliation(s)
- Zhizai Li
- School of Physical Science and Technology & College of Chemistry and Chemical Engineering & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Guoqiang Peng
- School of Physical Science and Technology & College of Chemistry and Chemical Engineering & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Huanyu Chen
- School of Physical Science and Technology & College of Chemistry and Chemical Engineering & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Chang Shi
- School of Physical Science and Technology & College of Chemistry and Chemical Engineering & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - ZhenHua Li
- School of Physical Science and Technology & Lanzhou Center for Theoretical Physics & Key Laboratory of Theoretical Physics of Gansu Province, Lanzhou University, Lanzhou, 730000, China
| | - Zhiwen Jin
- School of Physical Science and Technology & College of Chemistry and Chemical Engineering & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
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