Select Publications

Journal articles

Chen D; Madumelu C; Kim M; Stefani BV; Soeriyadi A; Kang D; Sio HC; Zhang X; Zhu P; Hallam B; Wright M, 2022, 'Investigating the degradation behaviours of n+-doped Poly-Si passivation layers: An outlook on long-term stability and accelerated recovery', Solar Energy Materials and Solar Cells, vol. 236, pp. 111491 - 111491, http://dx.doi.org/10.1016/j.solmat.2021.111491

Hollemann C; Rienäcker M; Soeriyadi A; Madumelu C; Haase F; Krügener J; Hallam B; Brendel R; Peibst R, 2022, 'Firing stability of tube furnace-annealed n-type poly-Si on oxide junctions', Progress in Photovoltaics: Research and Applications, vol. 30, pp. 49 - 64, http://dx.doi.org/10.1002/pip.3459

Wright M; Soeriyadi A; Wright B; Andronikov D; Nyapshaev I; Abolmasov S; Abramov A; Hallam B, 2022, 'High-Intensity Illuminated Annealing of Industrial SHJ Solar Cells: A Pilot Study', IEEE Journal of Photovoltaics, vol. 12, pp. 267 - 273, http://dx.doi.org/10.1109/JPHOTOV.2021.3122932

Sen C; Hamer P; Soeriyadi A; Wright B; Wright M; Samadi A; Chen D; Stefani BV; Zhang D; Wu J; Jiang F; Hallam B; Abbott M, 2022, 'Impact of surface doping profile and passivation layers on surface-related degradation in silicon PERC solar cells', Solar Energy Materials and Solar Cells, vol. 235, pp. 111497 - 111497, http://dx.doi.org/10.1016/j.solmat.2021.111497

Soufiani AM; Soeriyadi A; Chan C; Hallam B, 2021, 'Improved Laser-Induced Defect Passivation and Simultaneous Elimination of Light-Induced Degradation in p-Type Czochralski Silicon', IEEE Journal of Photovoltaics, vol. 11, pp. 1370 - 1379, http://dx.doi.org/10.1109/JPHOTOV.2021.3104765

Rauha ITS; Soeriyadi AH; Kim M; Yli-Koski M; Wright B; Vähänissi V; Hallam BJ; Savin H, 2021, 'Increased surface recombination in crystalline silicon under light soaking due to Cu contamination', Solar Energy Materials and Solar Cells, vol. 232, pp. 111360 - 111360, http://dx.doi.org/10.1016/j.solmat.2021.111360

Lepkowski DL; Grassman TJ; Boyer JT; Chmielewski DJ; Yi C; Juhl MK; Soeriyadi AH; Western N; Mehrvarz H; Römer U; Ho-Baillie A; Kerestes C; Derkacs D; Whipple SG; Stavrides AP; Bremner SP; Ringel SA, 2021, '23.4% monolithic epitaxial GaAsP/Si tandem solar cells and quantification of losses from threading dislocations', Solar Energy Materials and Solar Cells, vol. 230, pp. 111299 - 111299, http://dx.doi.org/10.1016/j.solmat.2021.111299

Wright M; Stefani BV; Soeriyadi A; Basnet R; Sun C; Weigand W; Yu Z; Holman Z; Macdonald D; Hallam B, 2021, 'Progress with Defect Engineering in Silicon Heterojunction Solar Cells', Physica Status Solidi - Rapid Research Letters, vol. 15, http://dx.doi.org/10.1002/pssr.202100170

Scardera G; Payne D; Khan M; Zhang Y; Soeriyadi A; Zou S; Zhang D; Davidsen R; Hansen O; Hoex B; Abbott M, 2021, 'Silicon Nanotexture Surface Area Mapping Using Ultraviolet Reflectance', IEEE Journal of Photovoltaics, vol. 11, pp. 1291 - 1298, http://dx.doi.org/10.1109/JPHOTOV.2021.3086439

Vicari Stefani B; Kim M; Wright M; Soeriyadi A; Andronikov D; Nyapshaev I; Abolmasov S; Emtsev K; Abramov A; Hallam B, 2021, 'Stability Study of Silicon Heterojunction Solar Cells Fabricated with Gallium- and Boron-Doped Silicon Wafers', Solar RRL, vol. 5, pp. 2100406 - 2100406, http://dx.doi.org/10.1002/solr.202100406

Madumelu C; Wright B; Soeriyadi A; Wright M; Chen D; Hoex B; Hallam B, 2020, 'Investigation of light-induced degradation in N-Type silicon heterojunction solar cells during illuminated annealing at elevated temperatures', Solar Energy Materials and Solar Cells, vol. 218, http://dx.doi.org/10.1016/j.solmat.2020.110752

Vicari Stefani B; Soeriyadi A; Wright M; Chen D; Kim M; Zhang Y; Hallam B, 2020, 'Large-Area Boron-Doped 1.6 Ω cm p-Type Czochralski Silicon Heterojunction Solar Cells with a Stable Open-Circuit Voltage of 736 mV and Efficiency of 22.0%', Solar RRL, vol. 4, http://dx.doi.org/10.1002/solr.202000134

Fung TH; Pasanen TP; Zhang Y; Soeriyadi A; Vähänissi V; Scardera G; Payne D; Savin H; Abbott M, 2020, 'Improved emitter performance of RIE black silicon through the application of in-situ oxidation during POCl3 diffusion', Solar Energy Materials and Solar Cells, vol. 210, http://dx.doi.org/10.1016/j.solmat.2020.110480

Wright B; Madumelu C; Soeriyadi A; Wright M; Hallam B, 2020, 'Evidence for a Light-Induced Degradation Mechanism at Elevated Temperatures in Commercial N-Type Silicon Heterojunction Solar Cells', Solar RRL, http://dx.doi.org/10.1002/solr.202000214

Vicari Stefani B; Weigand W; Wright M; Soeriyadi A; Yu Z; Kim M; Chen D; Holman Z; Hallam B, 2019, 'P-type Upgraded Metallurgical-Grade Multicrystalline Silicon Heterojunction Solar Cells with Open-Circuit Voltages over 690 mV', Physica Status Solidi (A) Applications and Materials Science, vol. 216, http://dx.doi.org/10.1002/pssa.201900319

Zheng J; Lau CFJ; Mehrvarz H; Ma FJ; Jiang Y; Deng X; Soeriyadi A; Kim J; Zhang M; Hu L; Cui X; Lee DS; Bing J; Cho Y; Chen C; Green MA; Huang S; Ho-Baillie AWY, 2018, 'Large area efficient interface layer free monolithic perovskite/homo-junction-silicon tandem solar cell with over 20% efficiency', Energy and Environmental Science, vol. 11, pp. 2432 - 2443, http://dx.doi.org/10.1039/c8ee00689j

Chuang I; Michael A; Soeriyadi A; Kwok CY, 2018, 'Aluminum Induced Crystallization of In-Situ Phosphorus Doped E-Beam Evaporated Silicon Films for High Gauge Factor Piezo-Resistors', IEEE Electron Device Letters, vol. 39, pp. 889 - 892, http://dx.doi.org/10.1109/LED.2018.2829481

Hallam BJ; Ciesla AM; Chan CC; Soeriyadi A; Liu S; Soufiani AM; Wright M; Wenham S, 2018, 'Overcoming the Challenges of Hydrogenation in Silicon Solar Cells', Australian Journal of Chemistry, vol. 71, pp. 743 - 752, http://dx.doi.org/10.1071/CH18271

Soeriyadi AH; Wang L; Conrad B; Li D; Lochtefeld A; Gerger A; Barnett A; Perez-Wurfl I, 2017, 'Extraction of Essential Solar Cell Parameters of Subcells in a Tandem Structure With a Novel Three-Terminal Measurement Technique', IEEE Journal of Photovoltaics, vol. 8, pp. 327 - 332, http://dx.doi.org/10.1109/JPHOTOV.2017.2762596

Wang L; Pollard ME; Klaus Juhl M; Conrad B; Soeriyadi A; Li D; Lochtefeld A; Gerger A; Bagnall DM; Barnett A; Perez-Wurfl I, 2017, 'Spectral response of steady-state photoluminescence from GaAs1-xPx layers grown on a SiGe/Si system', Applied Physics Letters, vol. 111, http://dx.doi.org/10.1063/1.4986134

Zhao X; Li D; Zhang T; Conrad B; Wang L; Soeriyadi AH; Han J; Diaz M; Lochtefeld A; Gerger A; Perez-Wurfl I; Barnett A, 2017, 'Short circuit current and efficiency improvement of SiGe solar cell in a GaAsP-SiGe dual junction solar cell on a Si substrate', Solar Energy Materials and Solar Cells, vol. 159, pp. 86 - 93, http://dx.doi.org/10.1016/j.solmat.2016.08.037

Li D; Zhao X; Wang L; Conrad B; Soeriyadi A; Lochtefeld A; Gerger A; Perez-Wurfl I; Barnett A, 2016, 'Performance improvement for epitaxially grown SiGe on Si solar cell using a compositionally graded SiGe base', Applied Physics Letters, vol. 109, http://dx.doi.org/10.1063/1.4972034

Li D; Zhao X; Wang L; Conrad B; Soeriyadi AH; Diaz M; Gerger A; Lochtefeld A; Barnett A; Perez-Wurfl I, 2016, 'Optical absorption of graded buffer layers and short circuit current improvement in SiGe solar cells grown on silicon substrates', Solar Energy Materials and Solar Cells, vol. 157, pp. 973 - 980, http://dx.doi.org/10.1016/j.solmat.2016.08.019

Li D; Zhao X; Wang L; Conrad B; Soeriyadi A; Lochtefeld A; Gerger A; Barnett A; Perez-Wurfl I, 2016, 'Performance improvement for epitaxially grown SiGe on Si solar cell by optimizing the back surface field', Physica Status Solidi: Rapid Research Letters, vol. 10, pp. 735 - 738, http://dx.doi.org/10.1002/pssr.201600231

Wang L; Li D; Zhao X; Conrad B; Diaz M; Soeriyadi A; Lochtefeld A; Gerger A; Perez-Wurfl I; Barnett A, 2016, 'Current and efficiency improvement for a GaAsP/SiGe on Si tandem solar cell device achieved by light trapping techniques', Physica Status Solidi - Rapid Research Letters, vol. 10, pp. 596 - 599, http://dx.doi.org/10.1002/pssr.201600157

Soeriyadi AH; Conrad B; Zhao X; Li D; Wang L; Lochtefeld A; Gerger A; Perez-Wurfl I; Barnett A, 2016, 'Increased Spectrum Utilization with GaAsP/SiGe Solar Cells Grown on Silicon Substrates', MRS Advances, vol. 1, pp. 2901 - 2906, http://dx.doi.org/10.1557/adv.2016.354

Wang L; Conrad B; Soeriyadia A; Zhao X; Li D; Diaz M; Lochtefeld A; Gerger A; Perez-Wurfl I; Barnett A, 2016, 'Current matched three-terminal dual junction GaAsP/SiGe tandem solar cell on Si', Solar Energy Materials and Solar Cells, vol. 146, pp. 80 - 86, http://dx.doi.org/10.1016/j.solmat.2015.11.037

Conrad B; Zhao X; Li D; Wang L; Diaz M; Soeriyadi AH; Lochtefeld A; Gerger A; Barnett A; Perez-Wurfl I, 2016, 'Window optimization enabling broadband double-layer antireflection coating for GaAsP/SiGe tandem on silicon', Solar Energy, vol. 127, pp. 216 - 222, http://dx.doi.org/10.1016/j.solener.2016.01.019

Li D; Zhao X; Gerger A; Opila R; Wang L; Conrad B; Soeriyadi AH; Diaz M; Lochtefeld A; Barnett A; Perez-Wurfl I, 2015, 'Optical constants of silicon germanium films grown on silicon substrates', Solar Energy Materials and Solar Cells, vol. 140, pp. 69 - 76, http://dx.doi.org/10.1016/j.solmat.2015.03.031

Wang L; Diaz M; Conrad B; Zhao X; Li D; Soeriyadi A; Gerger A; Lochtefeld A; Ebert C; Perez-Wurfl I; Barnett A, 2015, 'Material and Device Improvement of GaAsP Top Solar Cells for GaAsP/SiGe Tandem Solar Cells Grown on Si Substrates', IEEE Journal of Photovoltaics, vol. 5, pp. 1 - 5, http://dx.doi.org/10.1109/JPHOTOV.2015.2459918

Zhao X; Li D; Conrad B; Wang L; Soeriyadi AH; Diaz M; Lochtefeld A; Gerger A; Perez-Wurfl I; Barnett A, 2015, 'Material and device analysis of SiGe solar cell in a GaAsP-SiGe dual junction solar cell on Si substrate', Solar Energy Materials and Solar Cells, vol. 134, pp. 114 - 121, http://dx.doi.org/10.1016/j.solmat.2014.11.027

Diaz M; Wang L; Li D; Zhao X; Conrad B; Soeriyadi A; Gerger A; Lochtefeld A; Ebert C; Opila R; Perez-Wurfl I; Barnett A, 2015, 'Tandem GaAsP/SiGe on Si solar cells', Solar Energy Materials and Solar Cells, vol. 143, pp. 113 - 119, http://dx.doi.org/10.1016/j.solmat.2015.06.033

Conference Papers

Lepkowski DL; Kasher T; Boyer JT; Blumer ZH; Yi C; Juhl MK; Soeriyadi AH; Mehrvarz H; Romer U; Ho-Baillie A; Bremner SP; Ringel SA; Grassman TJ, 2021, 'Recent Advances in GaAsP/Si Top Cell Enabling 27% Tandem Efficiency', in Conference Record of the IEEE Photovoltaic Specialists Conference, IEEE, pp. 1644 - 1646, presented at 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), 20 June 2021 - 25 June 2021, http://dx.doi.org/10.1109/PVSC43889.2021.9518768

Heikkinen ITS; Wright B; Soeriyadi AH; Yli-Koski M; Kim M; Vahanissi V; Hallam BJ; Savin H, 2020, 'Can hydrogenation mitigate Cu-induced bulk degradation in silicon?', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 2582 - 2585, http://dx.doi.org/10.1109/PVSC45281.2020.9300619

Weigand W; Muralidharan P; Chen D; Soeriyadi A; Stefani BV; Hallam B; Goodnick SM; Yu ZJ; Holman ZC, 2020, 'Diffusion profiles beneath silicon heterojunction contacts reduce contact resistivity and increase efficiency', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1404 - 1407, http://dx.doi.org/10.1109/PVSC45281.2020.9300520

Liu M; Soeriyadi AH; Song N; Hsiao PC; Romer U; Ekins-Daukes N; Lennon A, 2020, 'Formation Mechanism of Cu-based Ohmic Contacts for GaAs Solar Cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 0829 - 0832, http://dx.doi.org/10.1109/PVSC45281.2020.9300525

Lepkowski DL; Boyer JT; Yi C; Soeriyadi AH; Blumer ZH; Juhl MK; Derkacs D; Kerestes C; Stavrides A; Mehrvarz H; Ho-Baillie AWY; Bremner S; Ringel SA; Grassman TJ, 2020, 'Loss Analysis and Design Strategies Enabling >23% GaAsP/Si Tandem Solar Cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1884 - 1886, http://dx.doi.org/10.1109/PVSC45281.2020.9300787

Soeriyadi A; Weigand W; Wright B; Stefani BV; Wright M; Sen C; Chen D; Kim M; Holman Z; Hallam B, 2019, 'Elevating Low-Quality Silicon Wafers for High-Efficiency Silicon Heterojunction Solar Cell Applications', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 807 - 812, http://dx.doi.org/10.1109/PVSC40753.2019.8980613

Chen D; Weigand W; Wright M; Kim M; Shi J; Yu ZJ; Stefani BV; Soeriyadi A; Holman Z; Hallam B, 2019, 'Evaluating the Impact of and Solutions to Light-induced Degradation in Silicon Heterojunction Solar Cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1099 - 1103, http://dx.doi.org/10.1109/PVSC40753.2019.8980779

Nugraheni PS; Soeriyadi AH; Sediawan WB; Ustadi ; Budhijanto W, 2019, 'Influence of salt addition and freezing-thawing on particle size and zeta potential of nano-chitosan', in IOP Conference Series: Earth and Environmental Science, http://dx.doi.org/10.1088/1755-1315/278/1/012052

Ekins-Daukes NJ; Soeriyadi A; Zhao W; Bremner S; Pusch A, 2018, 'Loss analysis for single junction concentrator solar cells', in AIP Conference Proceedings, http://dx.doi.org/10.1063/1.5053511

Chuang I; Michael A; Soeriyadi A; Kwok CY, 2018, 'In-situ phosphorus doped ultra-high vacuum e-beam evaporated silicon for high gauge factor polysilicon', in Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS), Belfast, UK, pp. 1040 - 1043, presented at 2018 IEEE Micro Electro Mechanical Systems (MEMS), Belfast, UK, 21 January 2018 - 25 January 2018, http://dx.doi.org/10.1109/MEMSYS.2018.8346737

Conrad B; Soeriyadi A; Li D; Wang L; Zhao X; Lochtefeld A; Gerger A; Perez-Wurfl I; Barnett A, 2017, 'Improved GaAsP/SiGe tandem on silicon outdoors and under concentration', in 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017, pp. 2716 - 2718, http://dx.doi.org/10.1109/PVSC.2017.8366429

Soeriyadi AH; Wang L; Conrad B; Zhao X; Li D; Lochtefeld A; Gerger A; Barnett A; Perez-Wurfl I, 2017, 'Spatially resolved EL and PL coupling of a dual junction solar cell', in 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017, pp. 3524 - 3527, http://dx.doi.org/10.1109/PVSC.2017.8366341

Conrad B; Soeriyadi A; Li D; Wang L; Zhao X; Lochtefeld A; Gerger A; Perez-Wurfl I; Barnett A, 2016, 'Improved GaAsP/SiGe Tandem on Silicon Outdoors and Under Concentration', in Conference Record of the IEEE Photovoltaic Specialists Conference, Portland, U.S., pp. 1942 - 1946, presented at 43rd IEEE PVSC, Portland, U.S., 05 June 2016 - 10 June 2016, http://dx.doi.org/10.1109/PVSC.2016.7749964

Soeriyadi AH; Wang L; Conrad B; Zhao X; Li D; Lochtefeld A; Gerger A; Barnett A; Perez-Wurfl I, 2016, 'Spatially Resolved EL and PL Coupling of a Dual Junction Solar Cell', in Conference Record of the IEEE Photovoltaic Specialists Conference, Portland, U.S., pp. 1599 - 1601, presented at 43rd IEEE PVSC, Portland, U.S., 05 June 2016 - 10 June 2016, http://dx.doi.org/10.1109/PVSC.2016.7749890

Wang L; Conrad B; Soeriyadi AH; Diaz M; Zhao X; Li D; Gerger A; Lochtefeld A; Ebert C; Perez-Wurfl I; Barnett A, 2015, 'Current matched GaAsP/SiGe tandem device on Si over 20% efficiency under indoor measurement', in 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015, New Orleans, presented at 42nd IEEE Photovoltaic Specialists Conference, New Orleans, 14 June 2015 - 19 June 2015, http://dx.doi.org/10.1109/PVSC.2015.7355599

Li D; Zhao X; Diaz. M; Conrad B; Wang L; Soeriyadi AH; Gerger A; Lochtefeld A; Perez-Wurfl I; Barnett A, 2015, 'Optical and Electrical Analysis of Graded Buffer Layers in III-V/SiGe on Silicon Tandem Solar Cells', in 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015, New Orlenas, presented at 42 IEEE PVSC, New Orlenas, 14 June 2015 - 19 June 2015, http://dx.doi.org/10.1109/PVSC.2015.7356237

Zhao X; Li D; Wang L; Conrad B; Soeriyadi AH; Diaz M; Lochtefeld A; Gerger A; Perez-wurfl I; Barnett A, 2015, 'Short Circuit Current Improvement of SiGe Solar Cell in a Gallium Arsenide Phosphide-Silicon Germanium Dual Junction Solar Cell on Silicon Substrate', in 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015, New Orleans, presented at 42 IEEE PVSC, New Orleans, 14 June 2015 - 19 June 2015, http://dx.doi.org/10.1109/PVSC.2015.7356230

Soeriyadi AH; Lochtefeld A; Gerger A; Ebert C; Barnett A; Perez-Wurfl I, 2014, 'GaAsP Hall mobility characterization for GaAsP/SiGe tandem solar cell on Si substrate', in 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014, pp. 1186 - 1188, http://dx.doi.org/10.1109/PVSC.2014.6925126


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