Recent Advancements in Crystalline Pb-Free Halide Double Perovskites
Lead halide perovskites have gained more and more attention because of their ease of synthesis and excellent photoelectric properties including a large absorption coefficient, long carrier lifetime, long carrier diffusion length, and high carrier mobility. However, their toxicity, instability, and p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/2/62 |
| _version_ | 1818005619618086912 |
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| author | Muhammad Usman Qingfeng Yan |
| author_facet | Muhammad Usman Qingfeng Yan |
| author_sort | Muhammad Usman |
| collection | DOAJ |
| description | Lead halide perovskites have gained more and more attention because of their ease of synthesis and excellent photoelectric properties including a large absorption coefficient, long carrier lifetime, long carrier diffusion length, and high carrier mobility. However, their toxicity, instability, and phase degradation in ambient environments impede their large-scale applications. To address these concerns, it is desirable to find stable alternative halide perovskites without toxicity and with comparable optoelectronic properties to lead-based perovskites. Over the years, a considerable number of lead-free halide perovskites have been added to this family of materials, including A<sub>2</sub>B’B’’X<sub>6</sub>, A<sub>2</sub>BX<sub>6</sub>, and A<sub>3</sub>B<sub>2</sub>X<sub>9</sub> type perovskites. Among these, double perovskites with the general formula A<sub>2</sub>B’B’’X<sub>6</sub> are deemed to be a potential alternative to lead halide perovskites as they possess good stability under ambient conditions and excellent optoelectronic properties. In this review, recent progress in exploring Pb-free halide double perovskites is highlighted. The synthesis, composition-tuning, physical properties, and applications of representative 3D, 2D, and nanocrystal A<sub>2</sub>B’B’’X<sub>6</sub> double perovskites are introduced. In addition, perspectives about current challenges and solutions in this field are also provided. |
| first_indexed | 2024-04-14T04:47:23Z |
| format | Article |
| id | doaj.art-89ca77e88ad74480898f39e0e3384b19 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-14T04:47:23Z |
| publishDate | 2020-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-89ca77e88ad74480898f39e0e3384b192022-12-22T02:11:25ZengMDPI AGCrystals2073-43522020-01-011026210.3390/cryst10020062cryst10020062Recent Advancements in Crystalline Pb-Free Halide Double PerovskitesMuhammad Usman0Qingfeng Yan1Department of Chemistry, Tsinghua University, Beijing 100084, ChinaDepartment of Chemistry, Tsinghua University, Beijing 100084, ChinaLead halide perovskites have gained more and more attention because of their ease of synthesis and excellent photoelectric properties including a large absorption coefficient, long carrier lifetime, long carrier diffusion length, and high carrier mobility. However, their toxicity, instability, and phase degradation in ambient environments impede their large-scale applications. To address these concerns, it is desirable to find stable alternative halide perovskites without toxicity and with comparable optoelectronic properties to lead-based perovskites. Over the years, a considerable number of lead-free halide perovskites have been added to this family of materials, including A<sub>2</sub>B’B’’X<sub>6</sub>, A<sub>2</sub>BX<sub>6</sub>, and A<sub>3</sub>B<sub>2</sub>X<sub>9</sub> type perovskites. Among these, double perovskites with the general formula A<sub>2</sub>B’B’’X<sub>6</sub> are deemed to be a potential alternative to lead halide perovskites as they possess good stability under ambient conditions and excellent optoelectronic properties. In this review, recent progress in exploring Pb-free halide double perovskites is highlighted. The synthesis, composition-tuning, physical properties, and applications of representative 3D, 2D, and nanocrystal A<sub>2</sub>B’B’’X<sub>6</sub> double perovskites are introduced. In addition, perspectives about current challenges and solutions in this field are also provided.https://www.mdpi.com/2073-4352/10/2/62halide perovskitesdouble perovskiteslead-free |
| spellingShingle | Muhammad Usman Qingfeng Yan Recent Advancements in Crystalline Pb-Free Halide Double Perovskites Crystals halide perovskites double perovskites lead-free |
| title | Recent Advancements in Crystalline Pb-Free Halide Double Perovskites |
| title_full | Recent Advancements in Crystalline Pb-Free Halide Double Perovskites |
| title_fullStr | Recent Advancements in Crystalline Pb-Free Halide Double Perovskites |
| title_full_unstemmed | Recent Advancements in Crystalline Pb-Free Halide Double Perovskites |
| title_short | Recent Advancements in Crystalline Pb-Free Halide Double Perovskites |
| title_sort | recent advancements in crystalline pb free halide double perovskites |
| topic | halide perovskites double perovskites lead-free |
| url | https://www.mdpi.com/2073-4352/10/2/62 |
| work_keys_str_mv | AT muhammadusman recentadvancementsincrystallinepbfreehalidedoubleperovskites AT qingfengyan recentadvancementsincrystallinepbfreehalidedoubleperovskites |