Welcome to Huang Research Group!

 

Our research focuses on achieving high performance, low cost organic electronic devices and nanoelectronic devices including Organic Solar Cells, Nanocrystal Solar Cells, Photodetectors, Transistors, Memoristors, and other types of Sensors.

 

Highlight of Recent Publications:


dualSlider

Fullerene Photodetectors with a Linear Dynamic Range of 90 dB Enabled by a Cross-Linkable Buffer Layer

Fawen Guo, Zhengguo Xiao, and Jinsong Huang, Advanced Optical Materials, 1, 289-294 (2013)

A low-noise, highsensitivity, fullerene-based organic photo detector with a wide dynamic range is reported, which shows an excellent linear response from indoor light intensity to 12 pW/m2, corresponding to a linear dynamic range (LDR) of 90 dB.
Read more
A nanocomposite ultraviolet photodetector based on interfacial trap-controlled charge injection

Fawen Guo, Bin Yang, Yongbo Yuan, Zhengguo Xiao, Qingfeng Dong, Yu Bi, Jinsong Huang, Nature nanotechnology, 7, 798-802 (2012)

A solution-processed ultraviolet photodetector with a nanocomposite active layer composed of ZnO nanoparticles blended with semiconducting polymers can significantly outperform inorganic photodetectors.
Read more
Solution-Processed Fullerene-Based Organic Schottky Junction Devices for Large-Open-Circuit-Voltage Organic Solar Cells

Bin Yang, Fawen Guo, Yongbo Yuan, Zhengguo Xiao, Yunzhang Lu, Qingfeng Dong, Jinsong Huang, Advanced Materials, 25, 572-577 (2013)

A solution-processed fullerene-based organic Schottky junction photovoltaic device is fabricated to produce a large open circuit voltage, 0.85-0.95 V, which is higher than that of most organic bulk-heterojunction devices. A power conversion efficiency of 5% is achieved in fullerene-derivative [6,6]-phenyl-C71-butyric acid methylester-based Schottky junction devices.
Read more
Understanding the effect of ferroelectric polarization on power conversion efficiency of organic photovoltaic devices

Yongbo Yuan, Pankaj Sharma, Zhengguo Xiao, Shashi Poddar, Alexei Gruverman, Stephen Ducharme and Jinsong Huang, Energy and Environmental Science, 5, 8558 (2012)

The effect of P(VDF-TrFE) crystallinity on the performance of a ferroelectric OPV (FE-OPV) has been studied. It was shown the enhanced PCE and the switchable FE-OPVs is well connected to the ferroelectric nature of the P(VDF-TrFE)) crystalline. The results highlight the P(VDF-TrFE)) crystallinity as a critical issue for FE-OPVs and provide guidance for the fabrication of high performance FE-OPV devices.
Read more
Tuning the Energy Level Offset between Donor and Acceptor with Ferroelectric Dipole Layers for Increased Efficiency in Bilayer Organic Photovoltaic Cells

Bin Yang, Yongbo Yuan, Pankaj Sharma, Shashi Poddar, Rafal Korlacki, Stephen Ducharme, Alexei Gruverman, Ravi Saraf, Jinsong Huang, Advanced Materials, 24,1455 (2012)

A general method is reported to increase the power conversion effieciency of polymer solar cells without changing their chemical structures of the light absorbing molecules: a tunable dipole layer was inserted between donor and acceptor layer to tune their lowest unoccupied molecular orbital (LUMO) offset without interrupt the carrier conduction, and then to increase open circuit voltage.
Read more
Air Stable, Photosensitive, Phase Pure Iron Pyrite Nanocrystal Thin Films for Photovoltaic Application

Y. Bi, Y. Yuan, C. L. Exstrom, S. A. Darveau, and J. Huang, Nano Lett.. 11, 4953 (2011)

We report the rational synthesis of phase pure, highly crystalline cubic FeS2 nanocrystals (NCs) using a trioctylphosphine oxide (TOPO) assisted hot-injection method. The synthesized pyrite NC films have excellent air stability over one year. In contrast, obvious surface decomposition was observed on the surface of FeS2 NCs synthesized without TOPO.
Read more
Efficiency enhancement in organic solar cells with ferroelectric polymers

Yongbo Yuan, Timothy J. Reece, Pankaj Sharma, Shashi Poddar, Stephen Ducharme, Alexei Gruverman, Yang Yang and Jinsong Huang, Nature Materials, 10, 296 (2011)

One of the key loss mechanisms in the operation of organic solar cells is the separation and extraction of the generated charge carriers from the active region. The use of a ferroelectric layer is now shown to create large internal electric fields, resulting in an enhanced carrier extraction and increased device efficiency.
Read more
Room-temperature organic ferromagnetism in the crystalline poly(3-hexylthiophene): Phenyl-C61-butyric acid methyl ester blend film

Bin Yang, Zhengguo Xiao, Yongbo Yuan, Tanjore V. Jayaraman, Jeffrey E. Shield, Ralph Skomski and Jinsong Huang, Polymer, 54, 490-494 (2013)

We recently discovered that polymer semiconductors, such as poly(3-hexylthiophene)(P3HT), can have room temperature (RT) ferromagnetic properties in their crystalline phase and when mixed with phenyl-C61-butyric acid methyl ester (PCBM). Tens to hundreds nm size domains are clearly observed by magnetic force microscopy (MFM), and the ferromagnet was confirmed by superconducting quantum interference devices (SQUID).
Read more

 

 

  Read more about our research interests...