“Trash to Treasure” Recycling of Perovskite Single Crystals for X-ray Detection and Imaging

IF 6.5 1区 物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Haipeng Di, Dan Liu, Nan Li, Yuliang Yi, Xulong Gao, Manjing Wang, Tao Zeng, Jingjing Zhao
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Abstract

Organometal halide perovskite single crystals (PSCs) have drawn intensive attention in X-ray detection due to their outstanding optoelectronic properties. However, they currently suffer from a short lifespan caused by a phase transition or water and oxygen erosion. Sustainably recycling end-of-life PSCs is essential for reducing environmental impact and saving costs on raw materials and time. Herein, we propose a “trash to treasure” economically recycling strategy, which utilizes ammonium salt-assisted octahedral [PbI6]4– reconstruction and rearrangement to in situ treat various degraded PSCs. X-ray detectors based on the recycled PSCs demonstrate significantly enhanced performances comparable to those of previously reported fresh PSCs. For example, the recycled FAPbI3 detectors show a high sensitivity of 4.32 × 104 μC Gyair–1 cm–2 and a low limit of detection of 8.3 nGyair s–1, along with a high spatial resolution of 7.0 lp mm–1. Furthermore, this method has also been successfully employed to construct 2D/3D heterojunctions. This method offers universality, effectiveness, and simplicity, thereby inspiring the recycling and reuse of degraded perovskites.

Abstract Image

“垃圾变现”钙钛矿单晶的x射线探测与成像回收
有机金属卤化物钙钛矿单晶(PSCs)由于其优异的光电性能在x射线检测领域受到广泛关注。然而,由于相变或水和氧气的侵蚀,它们目前的寿命很短。可持续回收报废psc对于减少环境影响和节省原材料和时间成本至关重要。在此,我们提出了一种“垃圾变现”的经济回收策略,利用铵盐辅助的八面体[PbI6]4 -重构和重排来原位处理各种降解的PSCs。与先前报道的新鲜psc相比,基于回收psc的x射线探测器表现出显著增强的性能。例如,回收FAPbI3探测器具有4.32 × 104 μC Gyair-1 cm-2的高灵敏度和8.3 μC Gyair-1的低检测限,以及7.0 lp mm-1的高空间分辨率。此外,该方法还成功地用于构建2D/3D异质结。这种方法具有通用性、有效性和简单性,从而激发了降解钙钛矿的回收和再利用。
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来源期刊
ACS Photonics
ACS Photonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
11.90
自引率
5.70%
发文量
438
审稿时长
2.3 months
期刊介绍: Published as soon as accepted and summarized in monthly issues, ACS Photonics will publish Research Articles, Letters, Perspectives, and Reviews, to encompass the full scope of published research in this field.
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