• header-logo.png Department of Electronics and Electrical Engineering
    Indian Institute of Technology Guwahati
header-logo.png Department of Electronics
and Electrical Engineering
Arun Tej Mallajosyula

Dr. Arun Tej Mallajosyula

Assistant Professor

Key Research Areas : Photovoltaics and Green Hydrogen Generation, Flexible and Organic Electronics, Emerging Memories and Crossbar ReRAMs

Phone No: +91 361 2583469 (Office) | Email: aruntej@iitg.ac.in| Room No: 206

Personal Website   IRINS

PhD in Electrical Engineering, I.I.T. Kanpur (2011)

M.Tech. in Industrial Electronics, N.I.T.K. Surathkal (2004)

B.E. in Electronics and Instrumentation, Andhra University (2002)

Principal Engineer, Test Chip Design Department, Taiwan Semiconductors Manufacturing Co., Hsinchu (2011-12)

Post-Doctoral Research Fellow, Materials Science Department, National University of Singapore, Singapore (2013)

Post-Doctoral Research Associate, Materials Physics and Applications, Los Alamos National Laboratory, U.S.A. (2013-15)

Assitant Professor, Department of Electronics and Electrical Engineering, I.I.T. Guwahati (2015-Present)

Theory Courses:

EE203 Semiconductor Devices

EE213M Digital Circuits

EE314 Flexible and Printable Electronics

EE510 Semiconductor Device Modeling

EE514 Semiconductor IC Technology

EE611 Organic Semiconductor Devices

​NT601 Nano Device: Fabrication, Production & Patent Writing

NT705 Recent Advances in Nanotechnology

Laboratory Courses:

EE102 Basic Electronics Laboratory

EE207 Analog Circuits Laboratory

EE313 Microelectronics Laboratory

EE519 Photonics and Microelectronics Laboratory

Tutorials:

EE101 Basic Electronics

Journal Publications

1. Purkayastha A., Mallajosyula A.T., "Effect of various interlayers on the performance of cesium formamidinium lead mixed halide (CsFAPbX3) ??? Formamidinium tin iodide (FASnI3) two-terminal tandem solar cell", Solar Energy , vol.228 , (DOI - 10.1016/j.solener.2021.09.046) ,pp.523-530, [2021].

2. Gogoi H.J., Mallajosyula A.T., "Enhancing the Switching Performance of CH3NH3PbI3 Memristors by the Control of Size and Characterization Parameters", Advanced Electronic Materials , vol.7, issue 11 , (DOI - 10.1002/aelm.202100472) [2021].

3. Gogoi H.J., Bajpai K., Mallajosyula A.T., Solanki A., "Advances in Flexible Memristors with Hybrid Perovskites", Journal of Physical Chemistry Letters , vol.12, issue 36 , (DOI - 10.1021/acs.jpclett.1c02105) ,pp.8798-8825, [2021].

4. Purkayastha A., Mallajosyula A.T., "Optical modelling of tandem solar cells using hybrid organic-inorganic tin perovskite bottom sub-cell", Solar Energy , vol.218 , (DOI - 10.1016/j.solener.2021.01.054) ,pp.251-261, [2021].

5. Gogoi H.J., Mallajosyula A.T., "A comparative study on the forming methods of chalcogenide memristors to optimize the resistive switching performance", Journal of Physics D: Applied Physics , vol.53, issue 44 , (DOI - 10.1088/1361-6463/aba56e) [2020].

6. Mallajosyula A.T., Nie W., Gupta G., Blackburn J.L., Doorn S.K., Mohite A.D., "Critical Role of the Sorting Polymer in Carbon Nanotube-Based Minority Carrier Devices", ACS Nano , vol.10, issue 12 , (DOI - 10.1021/acsnano.6b04885) ,pp.10808-10815, [2016].

7. Rolston N., Watson B.L., Bailie C.D., McGehee M.D., Bastos J.P., Gehlhaar R., Kim J.-E., Vak D., Mallajosyula A.T., Gupta G., Mohite A.D., Dauskardt R.H., "Mechanical integrity of solution-processed perovskite solar cells", Extreme Mechanics Letters , vol.9 , (DOI - 10.1016/j.eml.2016.06.006) ,pp.353-358, [2016].

8. Mallajosyula A.T., Fernando K., Bhatt S., Singh A., Alphenaar B.W., Blancon J.-C., Nie W., Gupta G., Mohite A.D., "Large-area hysteresis-free perovskite solar cells via temperature controlled doctor blading under ambient environment", Applied Materials Today , vol.3 , (DOI - 10.1016/j.apmt.2016.03.002) ,pp.96-102, [2016].

9. Mallajosyula A.T., Iyer S.S.K., Mazhari B., "Charge transport in polythiophene:fullerene:nanotube bulk heterojunction photovoltaic devices investigated by impedance spectroscopy", Current Applied Physics , vol.13, issue 4 , (DOI - 10.1016/j.cap.2012.11.007) ,pp.677-683, [2013].

10. Mallajosyula A.T., Sundar Kumar Iyer S., Mazhari B., "Capacitance-voltage characteristics of P3HT:PCBM bulk heterojunction solar cells with ohmic contacts and the impact of single walled carbon nanotubes on them", Organic Electronics , vol.13, issue 7 , (DOI - 10.1016/j.orgel.2012.03.018) ,pp.1158-1165, [2012].

11. Mallajosyula A.T., Sundar Kumar Iyer S., Mazhari B., "Increasing the efficiency of charge extraction limited poly-(3- hexylthiophene):[6,6] phenyl C61 butyric acid methyl ester solar cells using single walled carbon nanotubes with metallic characteristics", Journal of Applied Physics , vol.109, issue 12 , (DOI - 10.1063/1.3598081) [2011].

12. Mallajosyula A.T., Iyer S.S.K., Mazhari B., "Role of single walled carbon nanotubes in improving the efficiency of poly-(3-hexylthiophene) based organic solar cells", Journal of Applied Physics , vol.108, issue 9 , (DOI - 10.1063/1.3493067) [2010].

13. Tej Mallajosyula A., Srivastava N., Sundar Kumar Iyer S., Mazhari B., "Characterization of matrix and isolated organic solar cells", Solar Energy Materials and Solar Cells , vol.94, issue 8 , (DOI - 10.1016/j.solmat.2008.09.027) ,pp.1319-1323, [2010].

14. Mallajosyula A.T., Iyer S.S.K., Mazhari B., "A comparative study of poly(3-octylthiophene) and poly(3-hexylthiophene) solar cells blended with single walled carbon nanotubes", Japanese Journal of Applied Physics , vol.48, issue 1 , (DOI - 10.1143/JJAP.48.011503) [2009].

15. Jain V., Rajbongshi B.K., Tej Mallajosyula A., Bhattacharjya G., Kumar Iyer S.S., Ramanathan G., "Photovoltaic effect in single-layer organic solar cell devices fabricated with two new imidazolin-5-one molecules", Solar Energy Materials and Solar Cells , vol.92, issue 9 , (DOI - 10.1016/j.solmat.2008.02.039) ,pp.1043-1046, [2008].

Conference Publications

1. Purkayastha A., Mallajosyula A.T., "Effect of active layer thickness and angle of incidence on the efficiency of planar heterojunction lead-free tin perovskite solar cell", Conference Record of the IEEE Photovoltaic Specialists Conference , (DOI - 10.1109/PVSC43889.2021.9518909) ,pp.1236-1239, [2021].

2. Gogoi H.J., Solanki A., Mallajosyula A.T., "Effect of Antisolvent Method on the Performance of HOIP based Memristive Devices", 2018 4th IEEE International Conference on Emerging Electronics, ICEE 2018 , (DOI - 10.1109/ICEE44586.2018.8937971) [2018].

3. Mallajosyula A.T., Iyer S.S.K., Mazhari B., "Role of single walled carbon nanotubes in improving the efficiency of P3HT:PCBM solar cells- Impedance Spectroscopy And Morphology Studies", Conference Record of the IEEE Photovoltaic Specialists Conference , (DOI - 10.1109/PVSC.2010.5614483) ,pp.95-101, [2010].

4. Mallajosyula A.T., Iyer S.S.K., Mazhari B., "Enhanced performance of poly-3(hexylthiophene) - Single walled carbon nanotube bulk heterojunction solar cells using a poly-3(hexylthiophene) buffer layer and Ca electrode", Conference Record of the IEEE Photovoltaic Specialists Conference , (DOI - 10.1109/PVSC.2009.5411176) ,pp.748-753, [2009].

5. Mallajosyula A.T., Iyer S.S.K., Mazhari B., "Conduction properties of carbon nanotubes in P3HT:SWNT bulk heterojunction solar cells", Conference Record of the IEEE Photovoltaic Specialists Conference , (DOI - 10.1109/PVSC.2008.4922722) [2008].

6. Mallajosyula A.T., Iyer S.S.K., Mazhari B., "Effect of single walled carbon nanotubes on the performance of poly-(3-hexylthiophene) solar cell", 2008 2nd IEEE International Nanoelectronics Conference, INEC 2008 , (DOI - 10.1109/INEC.2008.4585547) ,pp.550-554, [2008].

Gold medal for best graduating student, B.E. (E.I.E.), Andhra University, 1998-2002.

A solar cell with improved light absorption capacity, S. Sundar Kumar Iyer and Arun Tej Mallajosyula, Patent No. 344791. Status: Patent Granted.

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