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author：

You, S. (You, S..) [1] | Zhu, Z.-K. (Zhu, Z.-K..) [2] | Dai, S. (Dai, S..) [3] | Wu, J. (Wu, J..) [4] | Guan, Q. (Guan, Q..) [5] | Zhu, T. (Zhu, T..) [6] | Yu, P. (Yu, P..) [7] | Chen, C. (Chen, C..) [8] | Chen, Q. (Chen, Q..) [9] | Luo, J. (Luo, J..) [10]

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Scopus

Abstract：

Lead　halide　perovskites　have　made　great　advance　in　direct　X-ray　detection,　however　the　presence　of　toxic　lead　and　the　requirement　of　high　working　voltages　severely　limit　their　applicability　and　operational　stability.　Thus,　exploring　“green”　lead-free　hybrid　perovskites　capable　of　detecting　X-rays　at　zero　bias　is　crucial　but　remains　toughly　challenging.　Here,　utilizing　chiral　R/S-1-phenylpropylamine　(R/S-PPA)　cations,　a　pair　of　0D　chiral-polar　perovskites,　(R/S-PPA)2BiI5　(1R/1S)　are　constructed.　Their　intrinsic　spontaneous　electric　polarization　induces　a　large　bulk　photovoltage　of　0.63 V,　which　acts　as　a　driving　force　to　separate　and　transport　photogenerated　carriers,　thus　endowing　them　with　the　capability　of　self-driven　detection.　Consequently,　self-driven　X-ray　detectors　with　a　low　detection　limit　of　270 nGy s−1　are　successfully　constructed　based　on　high-quality,　inch-sized　single　crystals　of　1R.　Notably,　they　show　suppressed　baseline　drift　under　the　self-driven　mode,　exhibiting　superior　operational　stability.　This　study　realizes　self-driven　X-ray　detection　in　a　single-phase　lead-free　hybrid　perovskite　by　exploiting　the　intrinsic　bulk　photovoltaic　effect,　which　sheds　light　on　future　explorations　of　lead-free　hybrid　perovskites　toward　“green”　self-driven　radiation　detectors　with　high　performance.　©　2023　Wiley-VCH　GmbH.

Keyword：

0D lead-free perovskites bulk photovoltaic effect chirality self-driven X-ray detection

Community：

  • [ 1 ] [You S.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 2 ] [You S.]MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 3 ] [Zhu Z.-K.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 4 ] [Zhu Z.-K.]MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 5 ] [Dai S.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 6 ] [Wu J.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 7 ] [Wu J.]MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 8 ] [Wu J.]Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Jiangxi Normal University, Jiangxi, Nanchang, 330022, China
  • [ 9 ] [Guan Q.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 10 ] [Guan Q.]MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 11 ] [Guan Q.]Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Jiangxi Normal University, Jiangxi, Nanchang, 330022, China
  • [ 12 ] [Zhu T.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 13 ] [Zhu T.]MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 14 ] [Yu P.]College of Materials, Xiamen University, Fujian, Xiamen, 365001, China
  • [ 15 ] [Chen C.]Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou, 350108, China
  • [ 16 ] [Chen Q.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 17 ] [Luo J.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 18 ] [Luo J.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 19 ] [Luo J.]Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Jiangxi Normal University, Jiangxi, Nanchang, 330022, China
  • [ 20 ] [Luo J.]Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou, 350108, China

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Source ：

Advanced Functional Materials

ISSN： 1616-301X

Year： 2023

Issue： 36

Volume： 33

1 8 . 5

JCR@2023

1 8 . 5 0 0

JCR@2023

ESI HC Threshold：49

JCR Journal Grade：1

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 31

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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