Select Publications

Journal articles

Hallam B; Urueña A; Russell R; Aleman M; Abbott M; Dang C; Wenham S; Tous L; Poortmans J, 2015, 'Efficiency enhancement of i-PERC solar cells by implementation of a laser doped selective emitter', Solar Energy Materials and Solar Cells, 134, pp. 89 - 98, http://dx.doi.org/10.1016/j.solmat.2014.11.028

Nampalli N; Hallam BJ; Chan CE; Abbott MD; Wenham SR, 2015, 'Influence of Hydrogen on the Mechanism of Permanent Passivation of Boron-Oxygen Defects in p-Type Czochralski Silicon', IEEE Journal of Photovoltaics, 5, pp. 1580 - 1585, http://dx.doi.org/10.1109/JPHOTOV.2015.2466457

Hallam B; Chan C; Abbott M; Wenham S, 2015, 'Hydrogen passivation of defect-rich n-type Czochralski silicon and oxygen precipitates', Solar Energy Materials and Solar Cells, 141, pp. 125 - 131, http://dx.doi.org/10.1016/j.solmat.2015.05.009

Hamer P; Hallam B; Abbott M; Wenham S, 2015, 'Accelerated formation of the boron-oxygen complex in p-type Czochralski silicon', Physica Status Solidi Rapid Research Letters, 9, pp. 297 - 300, http://dx.doi.org/10.1002/pssr.201510064

Nampalli N; Hallam B; Chan C; Abbott M; Wenham S, 2015, 'Evidence for the role of hydrogen in the stabilization of minority carrier lifetime in boron-doped Czochralski silicon', Applied Physics Letters, 106, pp. 173501, http://dx.doi.org/10.1063/1.4919385

Hamer P; Wang S; Hallam B; Wenham S; Chong CM; Wenham A; Abbott M, 2015, 'Laser illumination for manipulation of hydrogen charge states in silicon solar cells', Physica Status Solidi Rapid Research Letters, 9, pp. 111 - 114, http://dx.doi.org/10.1002/pssr.201409495

Cornagliotti E; Uruena A; Hallam B; Tous L; Russell R; Duerinckx F; Szlufcik J, 2015, 'Large area p-type PERL cells featuring local p+ BSF formed by laser processing of ALD Al2O3 layers', Solar Energy Materials and Solar Cells, 138, pp. 72 - 79, http://dx.doi.org/10.1016/j.solmat.2015.02.034

Song L; Wenham A; Wang S; Hamer P; Ahmmed MS; Hallam B; Mai L; Abbott M; Hawkes ER; Chong C; Wenham S, 2015, 'Laser enhanced hydrogen passivation of silicon wafers', International Journal of Photoenergy, 2015, pp. 1 - 13, http://dx.doi.org/10.1155/2015/193892

Chan C; Abbott M; Hallam B; Juhl M; Lin D; Li Z; Li Y; Rodriguez J; Wenham S, 2015, 'Edge isolation of solar cells using laser doping', Solar Energy Materials and Solar Cells, 132, pp. 535 - 543, http://dx.doi.org/10.1016/j.solmat.2014.10.002

Hallam B; Tjahjono B; Trupke T; Wenham S, 2014, 'Erratum: Photoluminescence imaging for determining the spatially resolved implied open circuit voltage of silicon solar cells (Journal of Applied Physics (2014) 115 (044901))', Journal of Applied Physics, 115, http://dx.doi.org/10.1063/1.4884755

Hallam B; Augarten Y; Tjahjono B; Trupke T; Wenham S, 2014, 'Photoluminescence imaging for determining the spatially resolved implied open circuit voltage of silicon solar cells', Journal of Applied Physics, 115, http://dx.doi.org/10.1063/1.4862957

Hallam BJ; Hamer PG; Wenham SR; Abbott MD; Sugianto A; Wenham AM; Chan CE; Xu G; Kraiem J; Degoulange J; Einhaus R, 2014, 'Advanced bulk defect passivation for silicon solar cells', IEEE Journal of Photovoltaics, 4, pp. 88 - 95, http://dx.doi.org/10.1109/JPHOTOV.2013.2281732

Hallam B; Sugianto A; Mai L; Xu G; Chan C; Abbott M; Wenham S; Uruena A; Cornagliotti E; Aleman M, 2014, 'Hydrogen passivation of laser-induced defects for laser-doped silicon solar cells', IEEE Journal of Photovoltaics, 4, pp. 1413 - 1420, http://dx.doi.org/10.1109/JPHOTOV.2014.2347804

Lin D; Abbott M; Lu PH; Xiao B; Hallam B; Tjahjono B; Wenham S, 2014, 'Incorporation of deep laser doping to form the rear localized back surface field in high efficiency solar cells', Solar Energy Materials and Solar Cells, 130, pp. 83 - 90, http://dx.doi.org/10.1016/j.solmat.2014.06.037

Hamer P; Hallam B; Wenham S; Abbott M, 2014, 'Manipulation of hydrogen charge states for passivation of P-type wafers in photovoltaics', IEEE Journal of Photovoltaics, 4, pp. 1252 - 1260, http://dx.doi.org/10.1109/JPHOTOV.2014.2339494

Chan CE; Abbott MD; Juhl MK; Hallam BJ; Xiao B; Wenham SR, 2013, 'Assessing the Performance of Surface Passivation Using Low-Intensity Photoluminescence Characterization Techniques', IEEE Journal of Photovoltaics, pp. 1 - 7, http://dx.doi.org/10.1109/JPHOTOV.2013.2282739

Hallam B; Wenham S; Lee H; Lee E; Lee H; Kim J; Shin J; Cho K; Kim J, 2012, 'Record Efficiency on Large Area P-Type Czochralski Silicon Substrates', Japanese Journal of Applied Physics, 51, pp. 10NA08 - 10NA08, http://dx.doi.org/10.7567/jjap.51.10na08

Hallam B; Wenham S; Lee H; Lee E; Lee H; Kim J; Shin J, 2012, 'Erratum: Effect of edge junction isolation on the performance of laser doped selective emitter solar cells (Solar Energy Materials & Solar Cells (2011) 95 (3557-3563))', Solar Energy Materials and Solar Cells, 99, pp. 365, http://dx.doi.org/10.1016/j.solmat.2011.12.017

Wang Z; Han P; Lu H; Qian H; Chen L; Meng Q; Tang N; Gao F; Jiang Y; Wu J; Wu W; Zhu H; Jingjia J; Shi Z; Sugianto A; Mai L; Hallam B; Wenham SR, 2012, 'Advanced PERC and PERL production cells with 20.3% record efficiency for standard commercial p-type silicon wafers', Progress in Photovoltaics: Research and Applications, 20, pp. 260 - 268, http://dx.doi.org/10.1002/pip.2178

Hallam B; Tjahjono BS; Wenham SR, 2012, 'Effect of PECVD silicon oxynitride film composition on the surface passivation of silicon wafers', Solar Energy Materials and Solar Cells, 96, pp. 173 - 179, http://dx.doi.org/10.1016/j.solmat.2011.09.052

Hallam B; Wenham SR; Lee H; Lee E; Lee H; Kim KJ; Shin J; Cho K; Kim J, 2012, 'Record Efficiency on Large Area P-Type Czochralski Silicon Substrates', Japanese Journal of Applied Physics, 51, pp. 10NA08, http://dx.doi.org/10.1143/JJAP.51.10NA08

Lee E; Lee H; Choi CJ; Oh D; Shim J; Cho K; Kim KJ; Lee S; Hallam B; Wenham SR; Lee H, 2011, 'Improved LDSE processing for the avoidance of overplating yielding 19.2% efficiency on commercial grade crystalline Si solar cell', Solar Energy Materials and Solar Cells, 95, pp. 3592 - 3595, http://dx.doi.org/10.1016/j.solmat.2011.07.030

Conference Papers

Yamaguchi M; Araki K; Ota Y; Nishioka K; Zhang Y; Hallam B; Kojima N; Ohshita Y, 2024, 'Effectiveness of the Concentrating Photovoltaics (CPV) Toward TW-Scale PV Production', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 48 - 50, http://dx.doi.org/10.1109/PVSC57443.2024.10749584

Yamaguchi M; Araki K; Zhang Y; Hallam B; Kojima N; Ohshita Y, 2023, 'Consideration for importance of concentrating photovoltaics (PV) toward TW-scale PV production', in Aip Conference Proceedings, http://dx.doi.org/10.1063/5.0146171

Kim M; Wang L; Zhang Y; Underwood R; Drury S; Hallam B, 2023, 'Roadmap towards sustainable SHJ solar cell design', in Aip Conference Proceedings, http://dx.doi.org/10.1063/5.0140906

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, http://dx.doi.org/10.1063/5.0090522

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, http://dx.doi.org/10.1063/5.0089658

Kim M; Zhang Y; Verlinden P; Hallam B, 2022, 'Towards Sustainable Silicon PV Manufacturing at the Terawatt Level', in Aip Conference Proceedings, http://dx.doi.org/10.1063/5.0090424

Wright B; Hallam B, 2022, 'Unsupervised Machine Learning for Photovoltaic Systems: Modelling LID Dynamics in SHJ Solar Cells', in Aip Conference Proceedings, http://dx.doi.org/10.1063/5.0089218

Hallam B; Kim M; Underwood R; Drury S; Wang L; Dias PR, 2022, 'A Silicon learning curve and polysilicon requirements for broad-electrification with photovoltaics by 2050', in 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), IEEE, pp. 1177 - 1177, presented at 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), 05 June 2022 - 10 June 2022, http://dx.doi.org/10.1109/pvsc48317.2022.9938918

Dias PR; Kim M; Lennon A; Hallam B, 2022, 'What is the Role of Recycling in the Solar Terawatt Future?', in 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), IEEE, pp. 1047 - 1047, presented at 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), 05 June 2022 - 10 June 2022, http://dx.doi.org/10.1109/pvsc48317.2022.9938641

Kim M; Ciesla A; Sun C; Chen D; Malcolm A; Hallam B, 2021, 'Application of Δn Normalised Time, β: Linear Injection-Level Dependence on LeTID and the Recovery in Crystalline Silicon', in 38th European Photovoltaic Solar Energy Conference and Exhibition, Online, pp. 191 - 193, presented at 38th European Photovoltaic Solar Energy Conference and Exhibition, Online, 06 September 2021 - 10 September 2021

Zhang Y; Kim M; Wang L; Dias P; Underwood R; Verlinden P; Hallam B, 2021, 'Towards Multi-TW Scale Manufacturing of PV Technologies: Challenges Related to Material Consumption', in Proceedings Ises Solar World Congress 2021, International Solar Energy Society (ISES), pp. 62 - 71, presented at Proceedings of the ISES Solar World Congress 2021, - 29 November 2021, http://dx.doi.org/10.18086/swc.2021.04.01

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

Wright M; Kim M; Dexiang P; Xin X; Wenbin Z; Wright B; Hallam B, 2019, 'Multifunctional process to improve surface passivation and carrier transport in industrial N-type silicon heterojunction solar cells by 0.7% absolute', in Aip Conference Proceedings, http://dx.doi.org/10.1063/1.5123882

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

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)', Wuxi, China, presented at 18th Issue PV WE CLASS-Crystalline Silicon Advanced Technology and Materials Forum, Wuxi, China, 24 April 2019 - 24 May 2019, http://dx.doi.org/10.26190/unsworks/27317

Chen D; Hamer P; Ciesla A; Chan C; Chen R; Rougieux F; Liu S; Kim M; Samadi A; Wright B; Vargas C; Zhang X; Hameiri Z; Hao J; Wenham S; Abbott M; Hallam B, 2019, 'Hydrogen-Induced Degradation: An explanation of Light-and Elevated Temperature-Induced Degradation Mechanisms in n-and p-type Silicon', Leuven, Belgium, presented at 9thInternational Conference on Crystalline Silicon Photovoltaics 2019, Leuven, Belgium, 08 April 2019, http://dx.doi.org/10.26190/unsworks/27902

Chen D; Kim M; Shi J; Yu ZJ; Leilaeioun AM; Liu S; Stefani B; Wenham S; Einhaus R; Holman Z; Hallam B, 2018, '< 700 mV Open-Circuit Voltages on Defect-Engineered P-type Silicon Heterojunction Solar Cells on Czochralski and Multicrystalline Wafers', in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion Wcpec 2018 A Joint Conference of 45th IEEE Pvsc 28th Pvsec and 34th Eu Pvsec, pp. 1677 - 1681, http://dx.doi.org/10.1109/PVSC.2018.8548239

Chen R; Ciesla AM; Chen D; Chan CE; Hamer PG; Hallam BJ; Wenham SR, 2018, 'Impact of the impurity concentration on modulating charge state occupation in silicon', in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion Wcpec 2018 A Joint Conference of 45th IEEE Pvsc 28th Pvsec and 34th Eu Pvsec, pp. 53 - 57, http://dx.doi.org/10.1109/PVSC.2018.8548195

Chang NL; Hallam B; Chen D; Egan RJ, 2018, 'Techno-economic analysis of silicon heterojunction cell sequences using hydrogenated p-type wafers', in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion Wcpec 2018 A Joint Conference of 45th IEEE Pvsc 28th Pvsec and 34th Eu Pvsec, pp. 2108 - 2113, http://dx.doi.org/10.1109/PVSC.2018.8547685

Herguth A; Hallam B, 2018, 'A generalized model for boron-oxygen related light-induced degradation in crystalline silicon', in Aip Conference Proceedings, http://dx.doi.org/10.1063/1.5049325

Liu S; Chan C; Chen D; Kim M; Sen C; Varshney U; Hallam B; Abbott M; Wenham S; Payne D, 2018, 'Investigation of temperature and illumination dependencies of carrier-induced degradation in p -type multi-crystalline silicon', in Aip Conference Proceedings, http://dx.doi.org/10.1063/1.5049333

Wenham ACN; Wenham S; Chen R; Chan C; Chen D; Hallam B; Payne D; Fung T; Kim M; Liu S; Wang S; Kim K; Samadi A; Sen C; Vargas C; Varshney U; Stefani BV; Hamer P; Bourret-Sicotte G; Nampalli N; Hameiri Z; Chong C; Abbott M; Ciesla A, 2018, 'Hydrogen-induced degradation', in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion Wcpec 2018 A Joint Conference of 45th IEEE Pvsc 28th Pvsec and 34th Eu Pvsec, Institute of Electrical and Electronics Engineers (IEEE), Hawaii, USA, pp. 1 - 8, presented at 7th World Conference on Photovoltaic Energy Conversion, Hawaii, USA, 10 June 2018 - 17 June 2018, http://dx.doi.org/10.1109/PVSC.2018.8548100

Wenham ACN; Wenham S; Chen R; Chan C; Chen D; Hallam B; Payne D; Fung T; Kim M; Liu S; Wang S; Kim K; Samadi A; Sen C; Vargas C; Varshney U; Stefani BV; Hamer P; Bourret-Sicotte G; Nampalli N; Hameiri Z; Chong C; Abbott M, 2018, 'Hydrogen-induced degradation', IEEE, Waikoloa, HI, pp. 0001 - 0008, presented at 7th IEEE World Conference on Photovoltaic Energy Conversion (WCPEC), Waikoloa, HI, 10 June 2018 - 15 June 2018

Kim M; Chen D; Abbott M; Wenham S; Hallam B, 2018, 'Role of hydrogen: Formation and passivation of meta-stable defects due to hydrogen in silicon', in Ballif C; Brendel R; Glunz S; Hahn G; Poortmans J; Ribeyron PJ; Weeber A (eds.), AIP Conference Proceedings, AIP Publishing, SWITZERLAND, Lausanne, pp. 130010 - 130010, presented at 8th International Conference on Crystalline Silicon Photovoltaics (SiliconPV), SWITZERLAND, Lausanne, 19 March 2018 - 21 March 2018, http://dx.doi.org/10.1063/1.5049329

Fung TH; Kim M; Chen D; Samadi A; Chan CE; Hallam BJ; Wenham S; Abbott M, 2018, 'Influence of bound hydrogen states on carrier-induced degradation in multi-crystalline silicon', in Ballif C; Brendel R; Glunz S; Hahn G; Poortmans J; Ribeyron PJ; Weeber A (eds.), Aip Conference Proceedings, AIP Publishing, SWITZERLAND, Lausanne, pp. 130004, presented at 8th International Conference on Crystalline Silicon Photovoltaics (SiliconPV), SWITZERLAND, Lausanne, 19 March 2018 - 21 March 2018, http://dx.doi.org/10.1063/1.5049323

Kim M; Wenham S; Unsur V; Ebong A; Hallam B, 2018, 'Impact of Rapid Firing Thermal Processes on Meta-Stable Defects: Preformation of the LeTID and the Suppression of B-O Defects', in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC 34th EU PVSEC), pp. 0341 - 0346, http://dx.doi.org/10.1109/PVSC.2018.8547666


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