Cu-based metal–organic frameworks for highly sensitive X-ray detectors

Abstract

Here, we constructed Pb-free Cu-DABDT-MOFs-based (DABDT = 2,5-diamino-1,4-benzenedithiol) X-ray detectors. Combined with the advantage of high activation energy, the Cu-DABDT-MOFs-based detector can effectively generate and capture electrons under X-ray exposure and presents a high mobility–lifetime (μτ) product of 6.49 × 10⁻⁴ cm² V⁻¹ and promising detection sensitivity of 78.7 μC Gy_air⁻¹ cm⁻². As groundbreaking work, these discoveries have provided information for exploring MOF materials toward green and high-performance high-energy radiation detectors by exploiting the designable structure and tunable properties of the MOF family.