Stabilizing the black phase of cesium lead halide inorganic perovskite for efficient solar cells

Ye, Qiufeng; Zhao, Yang; Mu, Shaiqiang; Gao, Pingqi; Zhang, Qizhou; You, Jingbi

doi:10.1007/s11426-019-9504-x

Cited by 43 publications

(35 citation statements)

References 68 publications

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“…As a fact of matter, CsPbI 3 has three complicated black perovskite phases and one yellow nonperovskite phase: cubic (α‐) (1.73 eV), tetragonal (β‐) (1.68 eV), orthorhombic (γ‐) (1.75 eV) perovskite, and orthorhombic (δ‐) (2.82 eV) nonperovskite phases. [ 28 ] When the temperature decreases gradually, CsPbI 3 undergoes the transition from black α‐ to β‐phase at 281 °C and then to γ‐phase at 184 °C. When black γ‐phase CsPbI 3 is exposed to the humidity environment, it can transfer to nonperovskite δ‐phase immediately.…”

Section: Materials For Csbx3 Pscsmentioning

confidence: 99%

Inorganic Halide Perovskite Solar Cells: Progress and Challenges

Tian

Xue

Qin

et al. 2020

Advanced Energy Materials

275

202

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All‐inorganic perovskite semiconductors have recently drawn increasing attention owing to their outstanding thermal stability. Although all‐inorganic perovskite solar cells (PSCs) have achieved significant progress in recent years, they still fall behind their prototype organic–inorganic counterparts owing to severe energy losses. Therefore, there is considerable interest in further improving the performance of all‐inorganic PSCs by synergic optimization of perovskite films and device interfaces. This review article provides an overview of recent progress in inorganic PSCs in terms of lead‐based and lead‐free composition. The physical properties of all‐inorganic perovskite semiconductors as well as the hole/electron transporting materials are discussed to unveil the important role of composition engineering and interface modification. Finally, a discussion of the prospects and challenges for all‐inorganic PSCs in the near future is presented.

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Section: Materials For Csbx3 Pscsmentioning

confidence: 99%

Inorganic Halide Perovskite Solar Cells: Progress and Challenges

Tian

Xue

Qin

et al. 2020

Advanced Energy Materials

275

202

View full text Add to dashboard Cite

show abstract

“…Radii of possible elements for A-, B-, and X-sites in ABX 3 inorganic perovskites. [20,34,55] A-site [ CsPb 1Àx Sn x IBr 2 perovskite alloys by the one-step antisolvent (ATS) method. As shown by steady-state photoluminescence (PL) spectra in Figure 1a, the PL emission peak gradually redshifted as the increase in the substitution amount of Sn occurred.…”

Section: B-site Substitutionmentioning

confidence: 99%

Efficient and Stable All‐Inorganic Perovskite Solar Cells

Chen

Choy

2020

Solar RRL

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The large‐scale commercial application of organic–inorganic hybrid perovskite solar cells (PSCs) based on organic hole transport material (HTM) is still hindered by poor long‐term operational stability, although a certified record power conversion efficiency (PCE) as high as 25.2% can be achieved. In the recent several years, all‐inorganic PSCs have received tremendous attention due to their superb thermal and moisture stability and considerable progresses have been witnessed. Herein, the recent advancements of all‐inorganic PSCs are reviewed comprehensively. First, the recent progresses of the strategies for stabilizing the black phase of inorganic perovskites through either increasing tolerance factor or enhancing the energy barrier of phase transition from black to yellow phase are summarized and discussed. Second, the deposition and growth techniques of inorganic perovskite films are discussed. Third, the effective inorganic HTMs in normal all‐inorganic PSCs are described. Fourth, HTM‐free normal all‐inorganic PSCs are discussed. Afterward, the effective inorganic electron transport materials in inverted all‐inorganic PSCs are discussed. Subsequently, the advancements of interface engineering for increasing the PCE and stability of all‐inorganic PSCs are reviewed. Finally, a brief summary and outlook are presented to push up the PCE of all‐inorganic PSCs to over 20% in the near future.

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“…It has been reported that CsPbI 3 inorganic perovskites with the cubic‐phase structure are the most suitable candidate for solar cells application due to its suitable bandgap (<1.73 eV) and excellent optoelectronic property. [ 48,49 ]…”

Section: Cspbx3 Inorganic Perovskite Materialsmentioning

confidence: 99%

Improving the Stability and Optoelectronic Properties of All Inorganic Less‐Pb Perovskites by B‐Site Doping for High‐Performance Inorganic Perovskite Solar Cells

et al. 2020

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CsPbX3 (X = I, Br) inorganic perovskite solar cells (PSCs) have been considered as one of the most appealing research topics in the fields of photovoltaic technologies in the past several years due to their excellent thermal stability and booming conversion efficiency. Nevertheless, there are still a large number of critical challenges and issues for inorganic PSCs, such as unstable phase structure of I‐rich inorganic perovskites at ambient condition, the wide bandgap of Br‐rich inorganic perovskites, and serious defect traps, hindering further development of inorganic PSCs. Recently, partially substituting Pb2+ with other metal ions has been shown to enhance the stability, tune the bandgap, reduce the defects of CsPbX3 inorganic perovskites, and thereby improve the photovoltaic performance of inorganic PSCs. Herein, the recent progress in improving the photovoltaic performance of inorganic PSCs through the B‐site doping strategy is summarized, and the influence of the alternative metal ions on the stability and optoelectronic properties of inorganic perovskites and photovoltaic characteristics of CsPbX3‐based PSCs is discussed. Finally, the issues that need to be understood in more detail are presented. It is believed that B‐site doping offers a practical strategy to gain high‐performance perovskite photovoltaic devices.

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Stabilizing the black phase of cesium lead halide inorganic perovskite for efficient solar cells

Cited by 43 publications

References 68 publications

Inorganic Halide Perovskite Solar Cells: Progress and Challenges

Inorganic Halide Perovskite Solar Cells: Progress and Challenges

Efficient and Stable All‐Inorganic Perovskite Solar Cells

Improving the Stability and Optoelectronic Properties of All Inorganic Less‐Pb Perovskites by B‐Site Doping for High‐Performance Inorganic Perovskite Solar Cells

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