The University of Southampton
Telephone:
+442380599104
Email:
A.Tarazona@soton.ac.uk

Dr Antulio Tarazona 

I have been Principal Research fellow at the ZI/ORC since April 2014. Previously, I have occupied executive and managerial positions in the private sector. I was the founder and Managing Director of EcherKon Technologies, a platform for the development and commercialisation of silicon deposition know-how and equipment. I successfully launched the first family of deposition systems based on Hot Wire Chemical Vapour Deposition Systems (HWCVD) in 2011. I have over 20 years’ experience carrying out research and development in thin film deposition systems, computational chemistry, vacuum design and surface characterisation in different countries; including, Venezuela, Japan, Germany and the UK. I occupied the roles of European Business Development Manager, Sales Support Specialist and four years in R&D for BOC Plc. I focused on the same company on business activities ranging from technical sales to business development in the semiconductor and solar sectors. Amongst his commercial achievements with BOC Edwards was the conception and introduction of an integrated system for treating and recycling the exhaust stream in the solar thin-film production.

I am a technologist with combining technical background and commercial acumen, with demonstrated experience in the academic and business.  I have participated in, and managed, product development, from ideas to finish technology demonstrators and commercial products.  I have dealt with resourcing, financing and project management on day-to-day and strategic levels. Good interpersonal skills, excellent team player with extensive experience working in international multidisciplinary environments obtained working in different countries. I have 6 granted patents and several peer-reviewed papers.  I am fluent in English, German and Spanish with conversational Japanese. I was born in Venezuela and have lived in Europe since 1992.

Research

Research interests

My main professional areas of interest are:

- Silicon Photonics

- Silicon process development

- Manufacturing

- Material sciences

Publications

Ben Masaud, Taha M., Tarazona, A., Chen, Xia, Reed, Graham T. and Chong, Harold M.H. (2013) Low temperature hot-wire polysilicon waveguides. Conference on Lasers and Electro-Optics Pacific Rim, Kyoto, Japan. 30 Jun - 04 Jul 2013.

Ben Masaud, Taha, Tarazona, Antulio, Jaberansary, Ehsan, Chen, Xia, Reed, Graham T., Mashanovich, Goran Z. and Chong, Harold M.H. (2013) Hot-wire polysilicon waveguides with low deposition temperature. Optics Letters, 38 (20), 4030-4032. (doi:10.1364/OL.38.004030).

Reed, G.T., Mashanovich, G.Z., Gardes, F.Y., Thomson, D.J., Hu, Youfang, Soler Penadés, J., Nedeljković, M., Khokhar, A.Z., Thomas, P., Littlejohns, Callum, Ahmad, A., Reynolds, Scott, Topley, Robert, Mitchell, C.J., Stanković, S., Owens, N., Chen, Xia, Wilson, P.R., Ke, L., Ben Masaud, T., Tarazona, A. and Chong, H.M.H. (2014) Recent results in silicon photonics at the University of Southampton. Eldada, Louay A. and Lee, El-Hang (eds.) Photonics West 2014, San Francisco, United States. 01 - 06 Feb 2014. 89890D . (doi:10.1117/12.2045490).

Nawabjan, A., Tarazona, A., Bagnall, D.M. and Boden, S.A. (2014) Development of epitaxial interdigitated back contact solar cell by HWCVD process. 10th Photovoltaic Science Applications and Technology Conference, United Kingdom. 23 - 25 Apr 2014.

Mughall, W.J., Mughall, H.A., Laffoley, A.G., Tarazona, A., Simdyankin, S., Bagnall, D.M., Boden, Stuart A. and Cowern, N.E.B. (2014) HELICS cell: laser-cut grooves to create high-efficiency, low cost IBC solar cell. 40th IEEE Photovoltaic Specialists Conference, United States. 08 - 13 Jun 2014.

Ben Masaud, T.M., Tarazona, A., Petra, Rafidah, Mashanovich, Goran Z., Reed, G.T. and Chong, Harold M.H. (2015) Effect of deposition temperature on the propagation loss of polysilicon waveguides using hot-wire CVD. Conference on Lasers and Electro-Optics. 21 - 25 Jun 2015.

Nawabjan, Amirjan, Tarazona, Antulio, Bagnall, Darren M. and Boden, Stuart A. (2015) Development of epitaxial interdigitated back contact (IBC) solar cell as a test platform for novel antireflection and light-trapping schemes. 11th Photovoltaic Science Applications and Technology Conference (PVSAT-11), United Kingdom. 15 - 17 Apr 2015. pp. 45-48 .

Reed, G.T., Mashanovich, G.Z., Gardes, F.Y., Thomson, David, Hu, Y., Soler Penadés, J., Nedeljković, M., Khokhar, Ali, Thomas, P., Littlejohns, Callum, Ahmad, A., Reynolds, Scott, Topley, R., Mitchell, C., Stanković, S., Chen, X., Wilson, P.R., Ke, L., Ben Masaud, T.M., Tarazona, A. and Chong, Harold (2014) Silicon photonics. 7th International Silicon-Germanium Technology and Device Meeting, Singapore. 02 - 04 Jun 2014.

Reed, G.T., Hu, Youfang, Mashanovich, G.Z., Gardes, F.Y., Thomson, D.J., Soler Penadés, J., Nedeljković, M., Khokhar, Ali, Thomas, P., Littlejohns, C.J., Ahmad, A., Reynolds, Scott, Topley, R., Mitchell, C., Stanković, S., Richardson, D.J., Petropoulos, P., Wilson, P.R., Ke, L., Ben Masaud, T.M., Tarazona, A. and Chong, Harold (2014) Near infrared and the mid infrared silicon photonic devices. Nano Korea '14 Symposium. 02 - 04 Jul 2014.

Reed, G.T., Mashanovich, G.Z., Gardes, F.Y., Thomson, D.J., Hu, Youfang, Soler Penadés, J., Nedeljković, M., Khokhar, A.Z., Thomas, P., Littlejohns, C., Ahmed, A., Reynolds, Scott, Topley, R.P., Mitchell, C., Stanković, S., Wilson, P.R., Ke, L., Ben Masaud, T.M., Tarazona, A. and Chong, H.M.H. (2014) Silicon photonic devices for the near- and mid-infrared wavelength ranges. Third Mediterranean Photonics Conference, Trani, Italy. 07 - 09 May 2014.

Grech, David, Tarazona, Antulio, de Leon, Maria Theresa, Kiang, Kian Shen, Zekonyte, Jurgita, Wood, Robert and Chong, Harold M.H. (2016) Large gauge factor of hot wire chemical vapour deposition in-situ boron doped polycrystalline silicon. Materials Research Express, 3 (4), 1-11. (doi:10.1088/2053-1591/3/4/045702).

Ben Masaud, Taha, Tarazona, Antulio, Petra, Rafidah, Khokhar, Ali, Reed, Graham T. and Chong, Harold M.H. (2016) Broadband 2D diamond grating couplers with variable pitch. IEEE 6th International Conference on Photonics, Malaysia. 14 - 16 Mar 2016. 3 pp . (doi:10.1109/ICP.2016.7510006).

De Leon, Maria Theresa, Tarazona, Antulio, Chong, Harold and Kraft, Michael (2014) Design, modeling, fabrication, and evaluation of thermoelectric generators with hot-wire chemical vapor deposited polysilicon as thermoelement material. Journal of Electronic Materials, 43 (11), 4070-4081. (doi:10.1007/s11664-014-3352-6).

Nawabjan, Amirjan, Rahman, Tasmiat, Tarazona, Antulio, Bagnall, Darren and Boden, Stuart (2015) Epitaxial Interdigitated Back Contact (IBC) solar cell test platform for novel light trapping schemes. Proceedings of the 31st European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Germany. 14 - 18 Sep 2015. pp. 783-787 . (doi:10.4229/EUPVSEC20152015-2AV.3.32).

Domínguez Bucio, Thalía, Tarazona, Antulio, Khokhar, Ali, Mashanovich, Goran and Gardes, Frederic (2016) Low temperature silicon nitride waveguides for multilayer platforms. SPIE Photonics Europe 2016, Brussels, Belgium. 03 - 07 Apr 2016. 98911T-98911T . (doi:10.1117/12.2227590).

Domínguez Bucio, Thalía, Tarazona, Antulio, Khokhar, Ali Z., Mashanovich, Goran Z. and Gardes, Frederic Y. (2016) Hot-wire chemical vapour deposition for silicon nitride waveguides. [in special issue: 229th ECS Meeting] ECS Transactions, 72 (4), 269-272. (doi:10.1149/07204.0269ecst).

Rahman, Tasmiat, Nawabjan, Amirjan, Tarazona, Antulio, Bagnall, Darren M. and Boden, Stuart (2016) Junction formation with HWCVD and TCAD model of an epitaxial back-contact solar cell. IEEE Journal of Photovoltaics, 6 (6), 1-7. (doi:10.1109/JPHOTOV.2016.2598277).

Franz, Yohann, Runge, Antoine, Oo, Swe, Healy, Noel, Martinez Jimenez, Gregorio, Khokhar, Ali, Tarazona, Antulio, Chong, Harold, Mailis, Sakellaris and Peacock, Anna (2017) Laser annealing of low temperature deposited silicon waveguides. In Conference on lasers and electro-optics. Optical Society of America. 2 pp . (doi:10.1364/CLEO_SI.2017.SM3K.4).

Tarazona, Antulio, de Leon, Maria Theresa, Grech, David, Zeimpekis, Ioannis, Sun, Kai, Chong, Harold and Ashburn, Peter (2014) Illustration of the industrial readiness of hot wire chemical vapor deposition (HWCVD) as part of standard micro-fabrication and high spec nanofabrication production lines.

Mailis, Sakellaris, Martinez Jimenez, Gregorio, Franz, Yohann, Runge, Antoine, Tarazona, Antulio, Oo, Swe, Chong, Harold, Peacock, Anna, Healy, Noel and Ceschia, Matteo (2017) Laser writing of polycrystalline Si ridge waveguides. In CLEO/Europe-EQEC. Optical Society of America..

Franz, Yohann, Runge, Antoine, Oo, Swe, Healy, Noel, Martinez Jimenez, Gregorio, Khokhar, Ali, Tarazona, Antulio, Chong, Harold, Mailis, Sakellaris and Peacock, Anna (2017) Laser annealed low temperature deposited polysilicon waveguides for nonlinear photonics. CLEO/Europe - EQEC 2017, Munich, Germany. 25 - 29 Jun 2017. 1 pp .

Grech, David, Tarazona, Antulio, De Leon, Maria Theresa, Kiang, Kian S., Zekonyte, Jurgita, Wood, Robert J.K. and Chong, Harold M.H. (2018) A Quasi-Concertina force-displacement MEMS probe for measuring biomechanical properties. Sensors and Actuators A: Physical, 275, 67-74. (doi:10.1016/j.sna.2018.03.031).

Rahman, Tasmiat, Nguyen, Hieu T., Tarazona, Antulio, Shi, Jingxing, Han, Young Joon, Franklin, Evan, Macdonald, Daniel and Boden, Stuart A. (2018) Characterization of epitaxial heavily-doped silicon regions formed by HWCVD using Micro-Raman and Micro-Photoluminescence Spectroscopy. IEEE Journal of Photovoltaics, 8 (3), 813-819. (doi:10.1109/JPHOTOV.2018.2818284).

Khorani, Edris, Scheul, Tudor, Emilian, Tarazona, Antulio, Rahman, Tasmiat and Boden, Stuart (2018) Optimisation of ex-situ annealing process for epitaxial silicon emitters via Hot Wire CVD. PV-SAT 14, London, United Kingdom. 18 - 20 Apr 2018.

Oo, Swe, Tarazona, Antulio, Pg Hj Petra, Dk Rafidah, Khokhar, Ali, Reed, Graham, Peacock, Anna and Chong, Harold (2018) Hot-wire CVD a-Si:H for low loss silicon photonic waveguides. 2018 Conference on Lasers and Electro-Optics, San Jose, United States. 13 - 18 May 2018.

Tarazona, Antulio, Oo, Swe, Domínguez Bucio, Thalía, Pg Hj Petra, Dk Rafidah, Khokhar, Ali, Mittal, Vinita, Gardes, Frederic, Reed, Graham and Chong, Harold (2018) Hot Wire Chemical Vapour Deposition (HWCVD) for silicon photonics: a new industrial application. 10th Hot Wire (Cat) Chemical Vapour Deposition Conference, Kitakyushu, Japan. 03 - 06 Sep 2018.

Oo, Swe, Tarazona, Antulio, Khokhar, Ali, Petra, Rafidah, Franz, Yohann, Mashanovich, Goran, Reed, Graham, Peacock, Anna and Chong, Harold (2019) Hot-wire chemical vapour deposition low-loss a-Si:H waveguides for silicon photonic devices. Photonics Research, 7 (2).

Franz, Yohann, Runge, Antoine F.J., Oo, Swe Zin, Martinez Jimenez, Gregorio, Healy, Noel, Khokhar, Ali, Tarazona, Antulio, Chong, Harold, Mailis, Sakellaris and Peacock, Anna (2019) Laser crystallized low-loss polycrystalline silicon waveguides. Optics Express, 27 (4), 4462-4470. (doi:10.1364/OE.27.004462).

Tarazona, Antulio, Domínguez Bucio, Thalia, Oo, Swe, Petra, R., Khokhar, Ali, Boden, Stuart, Gardes, Frederic, Reed, Graham and Chong, Harold (2019) Hot wire chemical vapor deposition for silicon photonics: an emerging industrial application opportunity. Thin Solid Films, 676, 26-30. (doi:10.1016/j.tsf.2019.02.048).

Petra, Rafidah, Oo, Swe Zin, Tarazona, Antulio, Cernansky, Robert, Reynolds, Scott A., Khokhar, Ali Z., Mittal, Vinita, Thomson, David J., Politi, Alberto, Mashanovich, Goran Z., Reed, Graham T. and Chong, Harold M.H. (2019) HWCVD a-Si:H interlayer slope waveguide coupler for multilayer silicon photonics platform. Optics Express, 27 (11), 15735-15749. (doi:10.1364/OE.27.015735).

Oo, Swe, Tarazona, Antulio, Khokhar, Ali, Reed, Graham, Peacock, Anna and Chong, Harold (2019) Vertically coupled a-Si:H multimode interference waveguides for multi-layer silicon photonics platform. Conference on Lasers and Electro-Optics, USA 2019, San Jose, United States. 05 - 10 May 2019. (doi:10.1364/CLEO_AT.2019.ATh3I.4).

Oo, Swe Z., Tarazona, Antulio, Khokhar, Ali Z., Petra, Rafidah, Franz, Yohann, Mashanovich, Goran Z., Reed, Graham T., Peacock, Anna C. and Chong, Harold M.H. (2018) Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices. Photonics Research, 7 (2), 193-200. (doi:10.1364/PRJ.7.000193).

Petra, Rafidah, Oo, Swe, Tarazona, Antulio, Cernansky, Robert, Reynolds, Scott, Thomson, David, Khokhar, A.Z., Politi, Alberto, Mashanovich, Goran, Reed, Graham and Chong, H.M.H. (2017) HWCVD a-Si:H interlayer slope waveguide coupler for multilayer silicon photonics platform. 14th International Conference on Group IV Photonics, GFP 2017, Berlin, Germany. 23 - 25 Aug 2017. pp. 47-48 . (doi:10.1109/GROUP4.2017.8082189).

Martinez-Jimenez, G., Franz, Y., Runge, A.F.J., Ceschia, M., Healy, N., Oo, S.Z., Tarazona, A., Chong, H.M.H., Peacock, A.C. and Mailis, S. (2019) Photonic micro-structures produced by selective etching of laser-crystallized amorphous silicon. Optical Materials Express, 9 (6), 2573-2581. (doi:10.1364/OME.9.002573).

Mittal, Vinita, Tarazona, Antulio, Khokhar, Ali, Banakar, Mehdi, Thomson, David, Reed, Graham and Chong, Harold (2019) 3D vertical directional coupler using slope waveguides on Si. In CLEO/Europe-EQEC 2019. OSA.. (In Press)

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