Ultrahigh and Broad Spectral Photodetectivity of an Organic–Inorganic Hybrid Phototransistor for Flexible Electronics

The creation of new organic-inorganic phototransistors with high and broad spectral photosensitivity is reported. The extended charge transport and photoconductivity between the layers in the bilayer structure results in a notable detectivity of over 10(12) Jones and a linear dynamic range of over 100 dB at a broad spectral bandwidth across the UV-NIR range. Furthermore, the considerably reduced persistent photocurrent effect of In-Ga-Zn-O (IGZO)-based hybrid phototransistors is first demonstrated via an organic-inorganic bilayer approach.

[1]  M. Goorsky,et al.  Multi‐layer thickness determination using differential‐based enhanced Fourier transforms of X‐ray reflectivity data , 2009 .

[2]  M. Loi,et al.  Outlook and Emerging Semiconducting Materials for Ambipolar Transistors , 2014, Advanced materials.

[3]  Luping Yu,et al.  Plastic Near‐Infrared Photodetectors Utilizing Low Band Gap Polymer , 2007 .

[4]  Hyun Jae Kim,et al.  Direct light pattern integration of low-temperature solution-processed all-oxide flexible electronics. , 2014, ACS nano.

[5]  Martin Moskovits,et al.  CHEMICAL SENSING AND CATALYSIS BY ONE-DIMENSIONAL METAL-OXIDE NANOSTRUCTURES , 2004 .

[6]  U-In Chung,et al.  High‐Performance Nanowire Oxide Photo‐Thin Film Transistor , 2013, Advanced materials.

[7]  Dong Hee Lee,et al.  Large Photoresponse in Amorphous In–Ga–Zn–O and Origin of Reversible and Slow Decay , 2010 .

[8]  Yanjun Fang,et al.  Resolving Weak Light of Sub‐picowatt per Square Centimeter by Hybrid Perovskite Photodetectors Enabled by Noise Reduction , 2015, Advanced materials.

[9]  D. Bradley,et al.  Organic phototransistors with nanoscale phase-separated polymer/polymer bulk heterojunction layers. , 2011, Nanoscale.

[10]  U. Chung,et al.  Origin of High Photoconductive Gain in Fully Transparent Heterojunction Nanocrystalline Oxide Image Sensors and Interconnects , 2014, Advanced materials.

[11]  Madan Dubey,et al.  Two-dimensional material nanophotonics , 2014, 1410.3882.

[12]  Cheol Seong Hwang,et al.  Origin of Subthreshold Swing Improvement in Amorphous Indium Gallium Zinc Oxide Transistors , 2008 .

[13]  Kenneth L. Shepard,et al.  Chip-integrated ultrafast graphene photodetector with high responsivity , 2013, Nature Photonics.

[14]  Ting‐Chang Chang,et al.  Review of Present Reliability Challenges in Amorphous In-Ga-Zn-O Thin Film Transistors , 2014 .

[15]  Yang Yang,et al.  Polymer solar cells with enhanced open-circuit voltage and efficiency , 2009 .

[16]  Yang Yang,et al.  Solution-processed hybrid perovskite photodetectors with high detectivity , 2014, Nature Communications.

[17]  U-In Chung,et al.  Persistent photoconductivity in Hf–In–Zn–O thin film transistors , 2010 .

[18]  Qingfeng Dong,et al.  A nanocomposite ultraviolet photodetector based on interfacial trap-controlled charge injection. , 2012, Nature nanotechnology.

[19]  B. Parkinson,et al.  In Situ Studies of Photoluminescence Quenching and Photocurrent Yield in Quantum Dot Sensitized Single Crystal TiO2 and ZnO Electrodes , 2012 .

[20]  Hyun Jae Kim,et al.  Enhanced electrical properties of thin-film transistor with self-passivated multistacked active layers. , 2013, ACS applied materials & interfaces.

[21]  Yang Yang,et al.  Tandem polymer solar cells featuring a spectrally matched low-bandgap polymer , 2012, Nature Photonics.

[22]  Kinam Kim,et al.  Gated three-terminal device architecture to eliminate persistent photoconductivity in oxide semiconductor photosensor arrays. , 2012, Nature materials.

[23]  Hyun Jae Kim,et al.  Defect reduction in photon-accelerated negative bias instability of InGaZnO thin-film transistors by high-pressure water vapor annealing , 2013 .

[24]  Antoni Rogalski,et al.  Infrared Detectors for the Future , 2009 .

[25]  T. Ren,et al.  Large-area, transparent, and flexible infrared photodetector fabricated using P-N junctions formed by N-doping chemical vapor deposition grown graphene. , 2014, Nano letters.