Detection of acetone vapours using solution-processed tin oxide thin-film transistors (2023)
Journal Article
Miller, L. R., Borthwick, R. J., dos Santos, P. L., & Chaudhry, M. U. (2023). Detection of acetone vapours using solution-processed tin oxide thin-film transistors. MRS Advances, 8, 440–445. https://doi.org/10.1557/s43580-023-00494-5

Abnormal concentrations of volatile organic compounds (VOCs) in human breathe can be used as disease-specific biomarkers for the non-invasive diagnosis of medical conditions, such as acetone for diabetes. Solution-processed bottom gate top contact me... Read More about Detection of acetone vapours using solution-processed tin oxide thin-film transistors.

Large Area Emission in p-Type Polymer-Based Light-Emitting Field-Effect Transistors by Incorporating Charge Injection Interlayers (2021)
Journal Article
Acar, G., Iqbal, M. J., & Chaudhry, M. U. (2021). Large Area Emission in p-Type Polymer-Based Light-Emitting Field-Effect Transistors by Incorporating Charge Injection Interlayers. Materials, 14(4), https://doi.org/10.3390/ma14040901

Organic light-emitting field-effect transistors (LEFETs) provide the possibility of simplifying the display pixilation design as they integrate the drive-transistor and the light emission in a single architecture. However, in p-type LEFETs, simultane... Read More about Large Area Emission in p-Type Polymer-Based Light-Emitting Field-Effect Transistors by Incorporating Charge Injection Interlayers.

Cobalt-Doped ZnO Nanorods Coated with Nanoscale Metal-Organic Framework Shells for Water-Splitting Photoanodes (2020)
Journal Article
Galan Gonzalez, A., Sivan, A. K., Hernández Ferrer, J., Bowen, L., Di Mario, L., Martelli, F., …Atkinson, D. (2020). Cobalt-Doped ZnO Nanorods Coated with Nanoscale Metal-Organic Framework Shells for Water-Splitting Photoanodes. ACS Applied Nano Material, 3(8), 7781-7788. https://doi.org/10.1021/acsanm.0c01325

Developing highly efficient and stable photoelectrochemical (PEC) water splitting electrodes via inexpensive, liquid phase processing is one of the key challenges for the conversion of solar energy into hydrogen for sustainable energy production. ZnO... Read More about Cobalt-Doped ZnO Nanorods Coated with Nanoscale Metal-Organic Framework Shells for Water-Splitting Photoanodes.

Effect of Gate Conductance on Hygroscopic Insulator Organic Field-Effect Transistors (2020)
Journal Article
Arthur, J. N., Chaudhry, M. U., Woodruff, M. A., Pandey, A. K., & Yambem, S. D. (2020). Effect of Gate Conductance on Hygroscopic Insulator Organic Field-Effect Transistors. Advanced Electronic Materials, 6(5), Article 1901079. https://doi.org/10.1002/aelm.201901079

Hygroscopic insulator field‐effect transistors (HIFETs) are a class of low‐voltage‐operation organic transistors that have been successfully demonstrated for biosensing applications through modification of the gate electrode. However, modification of... Read More about Effect of Gate Conductance on Hygroscopic Insulator Organic Field-Effect Transistors.

Polymer Light‐Emitting Transistors With Charge‐Carrier Mobilities Exceeding 1 cm2 V−1 s−1 (2019)
Journal Article
Chaudhry, M., Panidi, J., Nam, S., Smith, A., Lim, J., Tezner, K., …Anthopoulos, T. (2020). Polymer Light‐Emitting Transistors With Charge‐Carrier Mobilities Exceeding 1 cm2 V−1 s−1. Advanced Electronic Materials, 6(1), Article 1901132. https://doi.org/10.1002/aelm.201901132

The vast majority of conjugated polymer-based light emitting field-effect transistors (LEFETs) are characterized by low charge carrier mobilities typically in the range 10-5 to 10-3 cm2 V-1 s-1 range. Fast carrier transport is a highly desirable char... Read More about Polymer Light‐Emitting Transistors With Charge‐Carrier Mobilities Exceeding 1 cm2 V−1 s−1.

Efficient and Stable Solution-Processed Organic Light Emitting Transistors using a High-k Dielectric (2019)
Journal Article
Nam, S., Chaudhry, M. U., Tetzner, K., Pearson, C., Groves, C., Petty, M. C., …Bradley, D. D. (2019). Efficient and Stable Solution-Processed Organic Light Emitting Transistors using a High-k Dielectric. ACS Photonics, 6(12), 3159-3165. https://doi.org/10.1021/acsphotonics.9b01265

We report the development of highly efficient and stable solution-processed organic light emitting transistors (OLETs) that combine a polymer heterostructure with the transparent high-k dielectric poly(vinylidenefluoride0.62-trifluoroethylene0.31-chl... Read More about Efficient and Stable Solution-Processed Organic Light Emitting Transistors using a High-k Dielectric.

Organic Light‐Emitting Transistors: Advances and Perspectives (2019)
Journal Article
Chaudhry, M. U., Muhieddine, K., Wawrzinek, R., Sobus, J., Tandy, K., Lo, S., & Namdas, E. B. (2020). Organic Light‐Emitting Transistors: Advances and Perspectives. Advanced Functional Materials, 30(20), Article 1905282. https://doi.org/10.1002/adfm.201905282

The rapid development of charge transporting and light‐emitting organic materials in the last decades has advanced device performance, highlighting the high potential of light‐emitting transistors (LETs). Demonstrated for the first time over 15 years... Read More about Organic Light‐Emitting Transistors: Advances and Perspectives.

Light‐Emitting Transistors Based on Solution‐Processed Heterostructures of Self‐Organized Multiple‐Quantum‐Well Perovskite and Metal‐Oxide Semiconductors (2019)
Journal Article
Chaudhry, M. U., Wang, N., Tetzner, K., Seitkhan, A., Miao, Y., Sun, Y., …Bradley, D. D. (2019). Light‐Emitting Transistors Based on Solution‐Processed Heterostructures of Self‐Organized Multiple‐Quantum‐Well Perovskite and Metal‐Oxide Semiconductors. Advanced Electronic Materials, 5(7), Article 1800985. https://doi.org/10.1002/aelm.201800985

Solution‐processed hybrid organic–inorganic perovskite semiconductors have demonstrated remarkable performance for both photovoltaic and light‐emitting‐diode applications in recent years, launching a new field of condensed matter physics. However, th... Read More about Light‐Emitting Transistors Based on Solution‐Processed Heterostructures of Self‐Organized Multiple‐Quantum‐Well Perovskite and Metal‐Oxide Semiconductors.

Mobility Evaluation of [1]Benzothieno[3,2‑b][1]benzothiophene Derivatives: Limitation and Impact on Charge Transport (2018)
Journal Article
Wawrzinek, R., Sobus, J., Chaudhry, M. U., Ahmad, V., Grosjean, A., Clegg, J. K., …Lo, S. (2019). Mobility Evaluation of [1]Benzothieno[3,2‑b][1]benzothiophene Derivatives: Limitation and Impact on Charge Transport. ACS Applied Materials and Interfaces, 11(3), 3271-3279. https://doi.org/10.1021/acsami.8b16158

Amongst contemporary semiconductors many of the best performing materials are based on [1]benzothieno[3,2-b][1]benzothiophene (BTBT). Alkylated derivatives of these small molecules not only provide high hole mobilities but can also be easily processe... Read More about Mobility Evaluation of [1]Benzothieno[3,2‑b][1]benzothiophene Derivatives: Limitation and Impact on Charge Transport.

On the Operational, shelf life and degradation mechanism in polymer field effect transistors (2018)
Journal Article
Iqbal, M. J., Haq, H., Riaz, S., Raza, M. A., Iqbal, M. Z., Chaudhry, M. U., & Naseem, S. (2019). On the Operational, shelf life and degradation mechanism in polymer field effect transistors. Superlattices and Microstructures, 126, 125-131. https://doi.org/10.1016/j.spmi.2018.12.022

Organic Field Effect Transistors (OFETs) have shown great potential for future electronic technologies due to their low-cost solution processing, mechanical flexibility and potential applications for large area displays. One of the big obstacles in t... Read More about On the Operational, shelf life and degradation mechanism in polymer field effect transistors.

Low-Voltage Solution-Processed Hybrid Light-Emitting Transistors (2018)
Journal Article
Chaudhry, M. U., Tetzner, K., Lin, Y., Nam, S., Pearson, C., Groves, C., …Bradley, D. D. (2018). Low-Voltage Solution-Processed Hybrid Light-Emitting Transistors. ACS Applied Materials and Interfaces, 10(22), 18445-18449. https://doi.org/10.1021/acsami.8b06031

We report the development of low operating voltages in inorganic–organic hybrid light-emitting transistors (HLETs) based on a solution-processed ZrOx gate dielectric and a hybrid multilayer channel consisting of the heterojunction In2O3/ZnO and the o... Read More about Low-Voltage Solution-Processed Hybrid Light-Emitting Transistors.

Nano-Alignment in Semiconducting Polymer Films: A Path to Achieve High Current Density and Brightness in Organic Light Emitting Transistors (2018)
Journal Article
Chaudhry, M. U., Muhieddine, K., Wawrzinek, R., Li, J., Lo, S., & Namdas, E. B. (2018). Nano-Alignment in Semiconducting Polymer Films: A Path to Achieve High Current Density and Brightness in Organic Light Emitting Transistors. ACS Photonics, 5(6), 2137-2144. https://doi.org/10.1021/acsphotonics.8b00011

Organic light emitting field effect transistors (LEFETs) integrate light emission of a diode with logic functions of a transistor into a single device architecture. This integration has the potential to provide simplified displays at low costs and ac... Read More about Nano-Alignment in Semiconducting Polymer Films: A Path to Achieve High Current Density and Brightness in Organic Light Emitting Transistors.

UV-Deep Blue-Visible Light-Emitting Organic Field Effect Transistors with High Charge Carrier Mobilities (2017)
Journal Article
Ullah, M., Wawrzinek, R., Nagiri, R. C., Lo, S., & Namdas, E. B. (2017). UV-Deep Blue-Visible Light-Emitting Organic Field Effect Transistors with High Charge Carrier Mobilities. Advanced Optical Materials, 5(8), Article 1600973. https://doi.org/10.1002/adom.201600973

Two non-single-crystal high-mobility single-layer light-emitting field-effect transistors (LEFETs) exhibiting narrow UV and deep-blue emission are described. The organic semiconductors are based on a [1]benzothieno[3,2-b][1]benzothiophene (BTBT) scaf... Read More about UV-Deep Blue-Visible Light-Emitting Organic Field Effect Transistors with High Charge Carrier Mobilities.

Host-Free Blue Phosphorescent Dendrimer Organic Light-Emitting Field-Effect Transistors and Equivalent Light-Emitting Diodes: A Comparative Study (2017)
Journal Article
Ullah, M., Tandy, K., Clulow, A. J., Burn, P. L., Gentle, I. R., Meredith, P., …Namdas, E. B. (2017). Host-Free Blue Phosphorescent Dendrimer Organic Light-Emitting Field-Effect Transistors and Equivalent Light-Emitting Diodes: A Comparative Study. ACS Photonics, 4(4), 754-760. https://doi.org/10.1021/acsphotonics.6b01019

Light-emitting field-effect transistors (LEFETs) integrate functions of an organic light-emitting diode (OLED) and a field-effect transistor, and hence offer significant advantages in simplifying the device architecture for next-generation active mat... Read More about Host-Free Blue Phosphorescent Dendrimer Organic Light-Emitting Field-Effect Transistors and Equivalent Light-Emitting Diodes: A Comparative Study.

Orange-Red-Light-Emitting Field-Effect Transistors Based on Phosphorescent Pt(II) Complexes with Area Emission (2016)
Journal Article
Wawrzinek, R., Muhieddine, K., Ullah, M., Koszo, P. B., Shaw, P. E., Grosjean, A., …Lo, S. (2016). Orange-Red-Light-Emitting Field-Effect Transistors Based on Phosphorescent Pt(II) Complexes with Area Emission. Advanced Optical Materials, 4(11), 1867-1874. https://doi.org/10.1002/adom.201600460

Two new heteroleptic Pt(II) complexes bearing an n-hexyloxy substituted phenyllepidine-based ligand and either a picolinate (pic) or acetylacetonate (acac) coligand are synthesized for use in organic light-emitting field-effect transistors (LEFETs).... Read More about Orange-Red-Light-Emitting Field-Effect Transistors Based on Phosphorescent Pt(II) Complexes with Area Emission.

Semitransparent and Low-Voltage Operating Organic Light-Emitting Field-Effect Transistors Processed at Low Temperatures (2016)
Journal Article
Ullah, M., Wawrzinek, R., Maasoumi, F., Lo, S., & Namdas, E. B. (2016). Semitransparent and Low-Voltage Operating Organic Light-Emitting Field-Effect Transistors Processed at Low Temperatures. Advanced Optical Materials, 4(7), 1022-1026. https://doi.org/10.1002/adom.201600050

A see-through organic light emitting field-effect transistor (LEFET) is realized by using a highly transparent, high mobility material. Low voltage operated LEFETs with increased optical and electrical characteristics are shown.

Hybrid Light-Emitting Transistors Based on Low-Temperature Solution-Processed Metal Oxides and a Charge-Injecting Interlayer (2015)
Journal Article
Ullah, M., Lin, Y., Muhieddine, K., Lo, S., Anthopoulos, T. D., & Namdas, E. B. (2016). Hybrid Light-Emitting Transistors Based on Low-Temperature Solution-Processed Metal Oxides and a Charge-Injecting Interlayer. Advanced Optical Materials, 4(2), 231-237. https://doi.org/10.1002/adom.201500474

The performance of solution and low-temperature processed hybrid light-emitting field-effect transistors is enahnced by a new development strategy. The manipulation of the work function at the oxide/polymer interface is presented for achieving high a... Read More about Hybrid Light-Emitting Transistors Based on Low-Temperature Solution-Processed Metal Oxides and a Charge-Injecting Interlayer.

Singlet Fission and Triplet Exciton Dynamics in Rubrene/Fullerene Heterojunctions: Implications for Electroluminescence. (2015)
Journal Article
Ullah, M., Yambem, S. D., Moore, E. G., Namdas, E. B., & Pandey, A. K. (2015). Singlet Fission and Triplet Exciton Dynamics in Rubrene/Fullerene Heterojunctions: Implications for Electroluminescence. Advanced Electronic Materials, 1(12), Article 1500229. https://doi.org/10.1002/aelm.201500229

The role of triplet excitons in rubrene/C60 heterojunctions is investigated through detailed spectroscopic studies of triplet generation routes in the neat and heterojunction films of rubrene and C60. Time-correlated single-photon counting experiment... Read More about Singlet Fission and Triplet Exciton Dynamics in Rubrene/Fullerene Heterojunctions: Implications for Electroluminescence..

Hybrid Area-Emitting Transistors: Solution Processable and with High Aperture Ratios. (2015)
Journal Article
Muhieddine, K., Ullah, M., Maasoumi, F., Burn, P. L., & Namdas, E. B. (2015). Hybrid Area-Emitting Transistors: Solution Processable and with High Aperture Ratios. Advanced Materials, 27(42), 6677-6682. https://doi.org/10.1002/adma.201502554

Area emission is realized in all-solution-processed hybrid light-emitting transistors (HLETs). A new HLET design is presented with increased aperture ratio, and optical and electrical characteristics are shown.

Defining the light emitting area for displays in the unipolar regime of highly efficient light emitting transistors (2015)
Journal Article
Ullah, M., Armin, A., Tandy, K., Yambem, S. D., Burn, P. L., Meredith, P., & Namdas, E. B. (2015). Defining the light emitting area for displays in the unipolar regime of highly efficient light emitting transistors. Scientific Reports, 5, Article 8818. https://doi.org/10.1038/srep08818

Light-emitting field effect transistors (LEFETs) are an emerging class of multifunctional optoelectronic devices. It combines the light emitting function of an OLED with the switching function of a transistor in a single device architecture. The dual... Read More about Defining the light emitting area for displays in the unipolar regime of highly efficient light emitting transistors.