The DOI matches its Crossref record; 257 of the 257 references it cites were found in a registry or an index.
Halide Perovskites: Is It All about the Interfaces?
Abstract
Design and modification of interfaces, always a critical issue for semiconductor devices, has become a primary tool to harness the full potential of halide perovskite (HaP)-based optoelectronics, including photovoltaics and light-emitting diodes. In particular, the outstanding improvements in HaP solar cell performance and stability can be primarily ascribed to a careful choice of the interfacial layout in the layer stack. In this review, we describe the unique challenges and opportunities of these approaches (section 1). For this purpose, we first elucidate the basic physical and chemical properties of the exposed HaP thin film and crystal surfaces, including topics such as surface termination, surface reactivity, and electronic structure (section 2). This is followed by discussing experimental results on the energetic alignment processes at the interfaces between the HaP and transport and buffer layers. This section includes understandings reached as well as commonly proposed and applied models, especially the often-questionable validity of vacuum level alignment, the importance of interface dipoles, and band bending as the result of interface formation (section 3). We follow this by elaborating on the impact of the interface formation on device performance, considering effects such as chemical reactions and surface passivation on interface energetics and stability. On the basis of these concepts, we propose a roadmap for the next steps in interfacial design for HaP semiconductors (section 4), emphasizing the importance of achieving control over the interface energetics and chemistry (i.e., reactivity) to allow predictive power for tailored interface optimization.
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Cites
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Cited by
Perovskite solar cells with atomically coherent interlayers on SnO2 electrodes
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Photoluminescence‐Based Characterization of Halide Perovskites for Photovoltaics
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Materials and Methods for Interface Engineering toward Stable and Efficient Perovskite Solar Cells
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The Role of the Interfaces in Perovskite Solar Cells
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Metadata
- Authors
- Schulz, P., Cahen, D., & Kahn, A.
- Venue
- Chemical Reviews
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-03-01
- Volume
- 119
- Issue
- 5
- Pages
- 3349-3417
- ISSN
- 0009-2665 (ISSN-L)
- 1520-6890
- OpenAlex
- W2903976592
- Cited by
- 558
- References
- 257
- FWCI
- 4.78
- Type
- journal article
- Language
- en
- Open access
- closed
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