journal article·2024-01-12

Flexible Large-Scale Self-Driven Perovskite X-ray Detector by Precise Heterogeneous Integration

Haojin Li, Xinmei Liu, Tinghuan Yang, Chuang Ma, Yachao Du, Peng Xu, Lu Zhang, Xin Song, Qingyue Cui, Shengli Zhao, Zhou Yang, Shengzhong Frank Liu, Shengye Jin, Kui Zhao

ACS Energy Letters· Volume 9· Issue 1
Publisher page

Abstract

Self-driven X-ray detectors, which eliminate the need for an external power supply and offer portability, are gaining significant attention for medical and industrial applications. However, their use is limited in emerging wearable electronics for imaging non-flat or complex objects. Here, we address this issue by developing a heterogeneous integration strategy on a scalable production scale to create flexible, large-scale, and thick perovskite membranes with high-performance, self-driven X-ray detection and imaging capabilities. The precise heterogeneous integration between 3D perovskites and various 2D perovskites can achieve a complex balance among spontaneous charge separation/transport, X-ray attenuation, and mechanical durability. Thus, we provide the first demonstration of a flexible perovskite heterojunction for X-ray detectors with a record self-driven sensitivity of 292 μC Gy air –1 cm –2 . Furthermore, we mark the first demonstration of the imaging capability of perovskite self-driven X-ray detectors. This work may provide a foundation for developing a host of sustainable and flexible perovskite optoelectronic devices.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Electronic and Structural Properties of Oxides · Ga2O3 and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Advanced Energy Materials, and School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, China

Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

Department of Chemical Physics, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei 230026, China

Funding

National University Research Fund of China · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Higher Education Discipline Innovation Project · Shaanxi Normal University · Thousand Young Talents Program of China

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