Postdoctoral Fellow

Ms Anastasia Soeriyadi

Engineering
Photovoltaic and Renewable Energy Engineering

Anastasia completed her PhD in Photovoltaics in 2018 focusing on device design and circuit analysis of a GaAsp/SiGe on Si substrate tandem solar cell. She has published >20 research papers based on her PhD project and collaboration with different groups in photovoltaics and electrical engineering. During her PhD, she has gain expertise in nano- and micro-fabrication design, and fabrication. She utilises various optical and electrical characterisation techniques to produce a thorough loss analysis of solar cells with complicated structures. She also has hands-on experience with the complete suite of silicon solar cell fabrication tools including diffusion, chemical processes, thin film deposition, and metallisation.

She is currently working as a Post doctoral researcher focusing on Hydrogenated and Hybrid Heterojunction p-type silicon PV Cells. She is in-charge of cell fabrication processes concentrating on developing emitter formation recipes for various structures including black silicon. She is also looking into electrical changes to determine physical mechanism occurring during different hydrogenation techniques. She concurrently contribute in III-V fabrication development for concentrator application grown by MBE.

  • Journal articles | 2022
    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
    Journal articles | 2022
    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
    Journal articles | 2022
    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
    Journal articles | 2022
    Tabernig SW; Soeriyadi AH; Römer U; Pusch A; Lamers D; Juhl MK; Payne DNR; Nielsen MP; Polman A; Ekins-Daukes NJ, 2022, 'Avoiding Shading Losses in Concentrator Photovoltaics Using a Soft-Imprinted Cloaking Geometry', IEEE Journal of Photovoltaics, vol. 12, pp. 1116 - 1127, http://dx.doi.org/10.1109/JPHOTOV.2022.3182277
    Journal articles | 2022
    Vicari Stefani B; Wright M; Soeriyadi A; Chen D; Kim M; Wright B; Andronikov D; Nyapshaev I; Abolmasov S; Wilson G; Hallam B, 2022, 'Silicon Heterojunction Solar Cells and p-type Crystalline Silicon Wafers: A Historical Perspective', Solar RRL, pp. 2200449 - 2200449, http://dx.doi.org/10.1002/solr.202200449
    Journal articles | 2022
    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
    Journal articles | 2021
    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
    Journal articles | 2021
    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
    Journal articles | 2021
    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
    Journal articles | 2021
    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
    Journal articles | 2021
    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
    Journal articles | 2021
    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
    Journal articles | 2020
    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
    Journal articles | 2020
    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
    Journal articles | 2020
    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
    Journal articles | 2020
    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
    Journal articles | 2019
    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
    Journal articles | 2018
    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
    Journal articles | 2018
    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
    Journal articles | 2018
    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
    Journal articles | 2017
    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
    Journal articles | 2017
    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
    Journal articles | 2017
    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
    Journal articles | 2016
    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
    Journal articles | 2016
    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
    Journal articles | 2016
    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
    Journal articles | 2016
    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
    Journal articles | 2016
    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
    Journal articles | 2016
    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
    Journal articles | 2016
    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
    Journal articles | 2015
    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
    Journal articles | 2015
    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
    Journal articles | 2015
    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
    Journal articles | 2015
    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
  • Conference Papers | 2022
    Soeriyadi AH; Hollemann C; Madumelu C; Haase F; Römer U; Brendel R; Peibst R; Hallam BJ, 2022, 'Impact of Firing and Capping Layers on Long-term Stability of Doped Poly-Si Passivating Contact Layers', in AIP Conference Proceedings, AIP Publishing, presented at SiliconPV 2021, The 11th International Conference on Crystalline Silicon Photovoltaics, http://dx.doi.org/10.1063/5.0089658
    Conference Papers | 2022
    Wright M; Chen R; Wright B; Soeriyadi A; Stefani BV; Zhang X; Hallam B, 2022, '0.3% Efficiency Improvement for n-PERT Solar Cells with Illuminated Hydrogenation Process', in AIP Conference Proceedings, AIP Publishing, presented at SiliconPV 2021, The 11th International Conference on Crystalline Silicon Photovoltaics, http://dx.doi.org/10.1063/5.0090522
    Conference Papers | 2021
    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
    Conference Papers | 2020
    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
    Conference Papers | 2020
    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
    Conference Papers | 2020
    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
    Conference Papers | 2020
    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
    Conference Presentations | 2019
    Chen D; Hamer P; Kim M; Mullins J; Sen C; Khan M; Oshima T; Abe H; Liu S; Ciesla A; Chan C; Chen R; Rougieux F; Zhou Z; Wright B; Varshney U; Vicari Stefani B; Soeriyadi A; Vargas Castrillon C; Samadi A; Hameiri Z; zhang X; Jin H; Qi W; Abbott M; Chong C; Peaker A; Hallam B, 2019, 'Will LeTID remain a commercial problem? Evaluating the solutions and a possible root cause. (LeTID仍是一个商业难题吗?根源分析和问题解决)', presented at 18th Issue PV WE CLASS-Crystalline Silicon Advanced Technology and Materials Forum, Wuxi, China, 24 April 2019 - 24 May 2019
    Conference Papers | 2019
    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
    Conference Papers | 2019
    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
    Conference Papers | 2019
    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
    Conference Presentations | 2018
    Chen D; Shi J; kim M; Yu Z; Vicari Stefani B; Wright M; Soeriyadi A; Einhaus R; Wenham S; holman Z; Hallam B, 2018, 'Record Voltages using Commercial-grade Silicon Wafers: Defect Engineering for p-type Silicon Heterojunction Solar Cells', presented at 2018 Asia-Pacific Solar Research Conference, UNSW, Sydney, Australia, 04 December 2018 - 06 December 2018
    Conference Papers | 2018
    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
    Conference Papers | 2018
    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
    Conference Presentations | 2018
    Hallam BJ; Chen D; Shi J; Kim M; Vicari Stefani B; Wright M; Soeriyadi A; Holman Z, 2018, 'Hydrogenated Heterojunction P-type Silicon Solar Cells with VOCs over 700 mV using Czochralski and Multi-Crystalline Si Wafers', presented at 10th China SoG Silicon and PV Power Conference, Xi'an, China, 08 November 2018 - 10 November 2018
    Conference Papers | 2017
    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
    Conference Papers | 2017
    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
    Conference Papers | 2016
    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
    Conference Papers | 2016
    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
    Conference Papers | 2015
    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
    Conference Papers | 2015
    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
    Conference Papers | 2015
    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
    Conference Papers | 2014
    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