Science China Materials

, Volume 62, Issue 5, pp 729–735 | Cite as

Organic single-crystal phototransistor with unique wavelength-detection characteristics

  • Mengxiao Hu (胡梦笑)
  • Jinyu Liu (刘金雨)
  • Qiang Zhao (赵强)
  • Dan Liu (刘单)
  • Qing Zhang (张晴)
  • Ke Zhou (周科)
  • Jie Li (李洁)
  • Huanli Dong (董焕丽)Email author
  • Wenping Hu (胡文平)


Organic phototransistors based on high-quality 2,8-dichloro-5,11-dihexyl-indolo[3,2-b]carbazo (CHICZ) single crystals show the highest photoresponsivity of 3×103 A W−1, photosensitivity of 2×104 and the detectivity can achieve 8.4×1014 Jones. We also discovered good linear dependence of log(photosensitivity) versus the wavelength when the devices were illuminated with a series of sameintensity but different-wavelength lights. The organic phototransistors based on CHICZ single crystal have potential applications in wavelength-detection.


organic phototransistor single crystal photoresponsivity photosensitivity wavelength-detection 



高质量的2, 8 - 二氯- 5, 1 1 - 二己基- 吲哚[ 3, 2 -b] 咔唑(CHICZ)单晶被应用于光电晶体管, 并表现出高性能的光响应度 (Rmax=3×103 A W−1)和光敏感性(Pmax=2×104 以及Dmax*=8.4×1014 Jones). 此外, 我们首次发现当这些器件被一系列相同强度但不同波长的 光照亮时, 光敏度的对数与波长呈现非常好的线性关系. 这一现象为拓展有机光控晶体管在波长检测中的应用提供了新视角.



The authors acknowledge financial support from the Ministry of Science and Technology of China (2017YFA0204503 and 2016YFB0401100), the National Natural Science Foundation of China (51725304, 51633006, 51703159 and 51733004), and the Strategic Priority Research Program (XDB12030300) of the Chinese Academy of Sciences.

Supplementary material

40843_2018_9369_MOESM1_ESM.pdf (502 kb)
Organic single-crystal phototransistor with unique wavelength-detection characteristics


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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Mengxiao Hu (胡梦笑)
    • 1
    • 2
  • Jinyu Liu (刘金雨)
    • 2
  • Qiang Zhao (赵强)
    • 2
  • Dan Liu (刘单)
    • 1
    • 2
  • Qing Zhang (张晴)
    • 2
  • Ke Zhou (周科)
    • 2
  • Jie Li (李洁)
    • 2
  • Huanli Dong (董焕丽)
    • 1
    • 2
    Email author
  • Wenping Hu (胡文平)
    • 2
    • 3
  1. 1.Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of ChemistryCapital Normal UniversityBeijingChina
  2. 2.Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of ChemistryChinese Academy of SciencesBeijingChina
  3. 3.Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and EngineeringTianjin UniversityTianjinChina

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