Tuning the amount of oxygen vacancies in sputter-deposited SnOx films for enhancing the performance of perovskite solar cells

Article

Ali, Fawad, Pham, Ngoc Duy, Bradford, H. Jonathan, Khoshsirat, Nima, Ostrikov, Ken, Bell, John M, Wang, Hongxia and Tesfamichael, Tuquabo. 2018. "Tuning the amount of oxygen vacancies in sputter-deposited SnOx films for enhancing the performance of perovskite solar cells." ChemSusChem: chemistry and sustainability, energy and materials. 11 (18), pp. 3096-3103. https://doi.org/10.1002/cssc.201801541
Article Title

Tuning the amount of oxygen vacancies in sputter-deposited SnOx films for enhancing the performance of perovskite solar cells

ERA Journal ID1615
Article CategoryArticle
AuthorsAli, Fawad (Author), Pham, Ngoc Duy (Author), Bradford, H. Jonathan (Author), Khoshsirat, Nima (Author), Ostrikov, Ken (Author), Bell, John M (Author), Wang, Hongxia (Author) and Tesfamichael, Tuquabo (Author)
Journal TitleChemSusChem: chemistry and sustainability, energy and materials
Journal Citation11 (18), pp. 3096-3103
Number of Pages7
Year2018
PublisherJohn Wiley & Sons
Place of PublicationGermany
ISSN1864-5631
1864-564X
Digital Object Identifier (DOI)https://doi.org/10.1002/cssc.201801541
Web Address (URL)https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cssc.201802048
Abstract

This work demonstrates the effect of oxygen vacancies in SnOx thin films on the performance of perovskite solar cells. Various SnOx films with different amounts of oxygen vacancies were deposited by sputtering at different substrate temperatures (25–300 °C). The transmittance of the films decreased from 82 to 66 % with increasing deposition temperature from 25 to 300 °C. Both X-ray photoelectron spectroscopy and electron-spin resonance spectroscopy confirmed that a higher density of oxygen vacancies was created within the SnOx film at a high substrate temperature, which caused narrowing of the SnOx bandgap from 4.1 (25 °C) to 3.74 eV (250 °C). Combined ultraviolet photoelectron spectroscopy and UV/Vis spectroscopy showed an excellent conduction band position alignment between the methylammonium lead iodide perovskite layer (3.90 eV) and the SnOx electron transport layer deposited at 250 °C (3.92 eV). As a result, a significant enhancement of the open-circuit voltage from 0.82 to 1.0 V was achieved, resulting in an increase of the power conversion efficiency of the perovskite solar cells from 11 to 14 %. This research demonstrated a facile approach for controlling the amount of oxygen vacancies in SnOx thin films to achieve a desirable energy alignment with the perovskite absorber layer for enhanced device performance.

Keywordsband alignment; oxygen vacancies; sputtering; substrate temperature; tin oxide
ANZSRC Field of Research 2020409999. Other engineering not elsewhere classified
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Byline AffiliationsQueensland University of Technology
Open access urlhttps://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cssc.201802048
Institution of OriginUniversity of Southern Queensland
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Jiao, Yalong, Zhou, Liujiang, Ma, Fengxian, Gao, Guoping, Kou, Liangzhi, Bell, John, Sanvito, Stefano and Du, Aijun. 2016. "Predicting single-layer technetium dichalcogenides (TcX2, X = S, Se) with promising applications in photovoltaics and photocatalysis." ACS Applied Materials and Interfaces. 8 (8), pp. 5385-5392. https://doi.org/10.1021/acsami.5b12606
Ab initio study of two-dimensional PdPS as an ideal light harvester and promising catalyst for hydrogen evolution reaction
Jiao, Yalong, Ma, Fengxian, Zhou, Liujiang, Ng, Yun Hau, Bell, John, Tretiak, Sergei and Du, Aijun. 2018. "Ab initio study of two-dimensional PdPS as an ideal light harvester and promising catalyst for hydrogen evolution reaction." Materials Today Energy. 7, pp. 136-140. https://doi.org/10.1016/j.mtener.2018.01.005
Strain mediated bandgap reduction, light spectrum broadening, and carrier mobility enhancement of methylammonium lead/tin iodide perovskites
Jiao, Yalong, Ma, Fengxian, Wang, Hongxia, Bell, John and Du, Aijun. 2017. "Strain mediated bandgap reduction, light spectrum broadening, and carrier mobility enhancement of methylammonium lead/tin iodide perovskites." Particle and Particle Systems Characterization. 34 (4). https://doi.org/10.1002/ppsc.201600288
Two-dimensional boron hydride sheets: High stability, massless dirac fermions, and excellent mechanical properties
Jiao, Yalong, Ma, Fengxian, Bell, John, Bilic, Ante and Du, Aijun. 2016. "Two-dimensional boron hydride sheets: High stability, massless dirac fermions, and excellent mechanical properties." Angewandte Chemie. 55 (35), pp. 10292-10295. https://doi.org/10.1002/anie.201604369
Phthalimide and naphthalimide: Effect of end-capping groups on molecular properties and photovoltaic performance of 9-fluorenone based acceptors for organic solar cells
Do, Thu-Trang, Subbiah, Jegadesan, Manzhos, Sergei, Jones, David J, Bell, John M and Sonar, Prashant. 2018. "Phthalimide and naphthalimide: Effect of end-capping groups on molecular properties and photovoltaic performance of 9-fluorenone based acceptors for organic solar cells." Organic Electronics. 62, pp. 12-20. https://doi.org/10.1016/j.orgel.2018.06.040
Molecular engineering strategy for high efficiency fullerene-free organic solar cells using conjugated 1,8-naphthalimide and fluorenone building blocks
Do, Thu Trang, Pham, Hong Duc, Manzhos, Sergei, Bell, John M and Sonar, Prashant. 2017. "Molecular engineering strategy for high efficiency fullerene-free organic solar cells using conjugated 1,8-naphthalimide and fluorenone building blocks." ACS Applied Materials and Interfaces. 9 (20), pp. 16967-16976. https://doi.org/10.1021/acsami.6b16395
Vinylene and benzo[c] [1,2,5]thiadiazole: Effect of the pi-spacer unit on the properties of bis(2-oxoindolin-3-ylidene)-benzodifuran-dione containing polymers for n-channel organic field-effect transistors
Do, Thu Trang, Patil, Basanagouda B, Singh, Samarendra P, Yambem, Soniya D, Feron, Krishna, Ostrikov, Kostya (Ken), Bell, John M and Sonar, Prashant. 2018. "Vinylene and benzo[c] [1,2,5]thiadiazole: Effect of the pi-spacer unit on the properties of bis(2-oxoindolin-3-ylidene)-benzodifuran-dione containing polymers for n-channel organic field-effect transistors." RSC Advances: an international journal to further the chemical sciences. 8 (68), pp. 38919-38928. https://doi.org/10.1039/c8ra08890j
Indenofluorene-based-copolymers: Influence of electron-deficient benzothiadiazole (BT) and benzooxadiazole (BO) moieties on light emitting devices
Do, Thu-Trang, Matsuki, Keiichiro, Sakanoue, Tomo, Wong, Fu-Lung, Manzhos, Sergei, Lee, Chun-Sing, Bell, John, Takenobu, Taishi and Sonar, Prashant. 2019. "Indenofluorene-based-copolymers: Influence of electron-deficient benzothiadiazole (BT) and benzooxadiazole (BO) moieties on light emitting devices." Organic Electronics. 70, pp. 14-24. https://doi.org/10.1016/j.orgel.2019.03.050
Microstructure and mechanical properties of titanium/steel bimetallic joints
Chu, Qiaoling, Bai, Ruixiang, Zhang, Min, Li, Jihong, Lei, Zhenkun, Hu, Ning, Bell, John M and Yan, Cheng. 2017. "Microstructure and mechanical properties of titanium/steel bimetallic joints." Materials Characterization. 132, pp. 330-337. https://doi.org/10.1016/j.matchar.2017.08.025
Correction: Naphthalene flanked diketopyrrolopyrrole based organic semiconductors for high performance organic field effect transistors (New Journal of Chemistry (2018) 42 (12374–12385) DOI: 10.1039/C8NJ01453A)
Liu, Qian, Sun, Huabin, Blaikie, Chula, Caporale, Chiara, Manzhos, Sergei, Feron, Krishna, MacLeod, Jennifer M., Massi, Massimiliano, Bottle, Steven E., Bell, John, Noh, Yong-Young and Sonar, Prashant. 2018. "Correction: Naphthalene flanked diketopyrrolopyrrole based organic semiconductors for high performance organic field effect transistors (New Journal of Chemistry (2018) 42 (12374–12385) DOI: 10.1039/C8NJ01453A)." New Journal of Chemistry: a journal for new directions in chemistry. 42 (19), p. 16384. https://doi.org/10.1039/C8NJ90083C
Benefit assessment of battery plus solar for customers and the grid
Boulaire, Fanny, Narimani, Afsaneh, Bell, John, Drogemuller, Robin, Vine, Desley, Buys, Laurie and Walker, Geoffrey. 2019. "Benefit assessment of battery plus solar for customers and the grid." Energy Strategy Reviews. 26. https://doi.org/10.1016/j.esr.2019.100372
Atypical defect motions in brittle layered sodium titanate nanowires
Bo, Arixin, Chen, Kai, Pickering, Edmund, Zhan, Haifei, Bell, John, Du, Aijun, Zhang, Yongqiang, Wang, Xiaoguang, Zhu, Huaiyong, Shan, Zhiwei and Gu, Yuantong. 2018. "Atypical defect motions in brittle layered sodium titanate nanowires." Journal of Physical Chemistry Letters. 9 (20), pp. 6052-6059. https://doi.org/10.1021/acs.jpclett.8b02349
Building energy optimisation under uncertainty using ACOMV algorithm
Bamdad, Keivan, Cholette, Michael E, Guan, Lisa and Bell, John. 2018. "Building energy optimisation under uncertainty using ACOMV algorithm." Energy and Buildings. 167, pp. 322-333. https://doi.org/10.1016/j.enbuild.2018.02.053
Ant colony algorithm for building energy optimisation problems and comparison with benchmark algorithms
Bamdad, Keivan, Cholette, Michael E, Guan, Lisa and Bell, John. 2017. "Ant colony algorithm for building energy optimisation problems and comparison with benchmark algorithms." Energy and Buildings. 154, pp. 404-414. https://doi.org/10.1016/j.enbuild.2017.08.071
Low hysteresis perovskite solar cells using an electron-beam evaporated WO3-x thin film as the electron transport layer
Ali, Fawad, Pham, Ngoc Duy, Fan, Lijuan, Tiong, Vincent, Ostrikov, Ken, Bell, John M., Wang, Hongxia and Tesfamichael, Tuquabo. 2019. "Low hysteresis perovskite solar cells using an electron-beam evaporated WO3-x thin film as the electron transport layer." ACS Applied Energy Materials. 2 (8), pp. 5456-5464. https://doi.org/10.1021/acsaem.9b00547
Stretchable respiration sensors: Advanced designs and multifunctional platforms for wearable physiological monitoring
Dinh, Toan, Nguyen, Thanh, Phan, Hoang-Phuong, Nguyen, Nam-Trung, Dao, Dzung Viet and Bell, John. 2020. "Stretchable respiration sensors: Advanced designs and multifunctional platforms for wearable physiological monitoring." Biosensors and Bioelectronics. 166. https://doi.org/10.1016/j.bios.2020.112460
Multi-biofunctional properties of three species of cicada wings and biomimetic fabrication of nanopatterned titanium pillars
Shahali, Hesam, Hasan, Jafar, Mathew, Asha, Wang, Hongxia, Yan, Cheng, Tesfamichael, Tuquabo, Yarlagadda, Prasad K. D. V. and Murray, P.. 2019. "Multi-biofunctional properties of three species of cicada wings and biomimetic fabrication of nanopatterned titanium pillars." Journal of Materials Chemistry B. 7 (8), pp. 1300-1310. https://doi.org/10.1039/c8tb03295e
Bacteria Death and Osteoblast Metabolic Activity Correlated to Hydrothermally Synthesised TiO2 Surface Properties
Jaggessar, Alka, Mathew, Asha, Tesfamichael, Tuquabo, Wang, Hongxia, Yan, Cheng and Yarlagadda, Prasad KDV. 2019. "Bacteria Death and Osteoblast Metabolic Activity Correlated to Hydrothermally Synthesised TiO2 Surface Properties ." Molecules. 24 (7). https://doi.org/10.3390/molecules24071201
Evaluation of Particle Beam Lithography for Fabrication of Metallic Nano-structures
Shahali, Hesam, Hasan, Jafar, Wang, Hongxia, Tesfamichael, Tuquabo, Yan, Cheng and Yarlagadda, Prasad K.D.V.. 2019. "Evaluation of Particle Beam Lithography for Fabrication of Metallic Nano-structures ." 14th Global Congress on Manufacturing and Management (GCMM 2018). Brisbane, Australia 05 - 07 Dec 2018 Netherlands. Elsevier. https://doi.org/10.1016/j.promfg.2019.02.038
Parametric Study on Nanopattern Bactericidal Activity
Velic, Amar, Tesfamichael, Tuquabo, Li, Zhiyong and Yarlagadda, Prasad K.D.V.. 2019. "Parametric Study on Nanopattern Bactericidal Activity ." 14th Global Congress on Manufacturing and Management (GCMM 2018). Brisbane, Australia 05 - 07 Dec 2018 Netherlands. Elsevier. https://doi.org/10.1016/j.promfg.2019.02.072
Investigation of mechanical properties and morphology of hydrothermally manufactured titanium dioxide nanostructured surfaces
Jaggessar, Alka, Tesfamichael, Tuquabo, Wang, Hongxia, Yan, Cheng and Yarlagadda, Prasad K.D.V.. 2019. "Investigation of mechanical properties and morphology of hydrothermally manufactured titanium dioxide nanostructured surfaces ." 14th Global Congress on Manufacturing and Management (GCMM 2018). Brisbane, Australia 05 - 07 Dec 2018 Netherlands. Elsevier. https://doi.org/10.1016/j.promfg.2019.02.052
Inorganic p-type semiconductors and carbon materials based hole transport materials for perovskite solar cells
Yang, Yang, Pham, Ngoc Duy, Yao, Disheng, Zhu, Huaiyong, Yarlagadda, Prasad and Wang, Hongxia. 2018. "Inorganic p-type semiconductors and carbon materials based hole transport materials for perovskite solar cells." Chinese Chemical Letters. 29 (8), pp. 1242-1250. https://doi.org/10.1016/j.cclet.2018.05.008
Mechanical, bactericidal and osteogenic behaviours of hydrothermally synthesised TiO2 nanowire arrays
Jaggessar, Alka, Mathew, Asha, Wang, Hongxia, Tesfamichael, Tuquabo, Yan, Cheng and Yarlagadda, Prasad KDV. 2018. "Mechanical, bactericidal and osteogenic behaviours of hydrothermally synthesised TiO2 nanowire arrays ." Journal of The Mechanical Behavior of Biomedical Materials. 80, pp. 311-319. https://doi.org/10.1016/j.jmbbm.2018.02.011
Fabrication of Nano Pyramid Texture on Ti-6Al-4V Using Nanosphere Lithography
Jaggessar, Alka, Yarlagadda, Prasad, Qiu, Tengfei, Li, Tong and Tesfamichael, Tuquabo. 2018. "Fabrication of Nano Pyramid Texture on Ti-6Al-4V Using Nanosphere Lithography." 1st International Conference on Materials Manufacturing (ICMMM 2017) and Modelling. Amsterdam, Netherlands 09 - 11 Mar 2017 United Kingdom. Elsevier. https://doi.org/10.1016/j.matpr.2018.02.128
Investigation on Temperature-Dependent Electrical Conductivity of Carbon Nanotube/Epoxy Composites for Sustainable Energy Applications
Njuguna, Michael K., Galpaya, Dilini, Yan, Cheng, Colwell, Colwell, Will, Geoffrey, Hu, Ning, Yarlagadda, Prasad and Bell, John M.. 2015. "Investigation on Temperature-Dependent Electrical Conductivity of Carbon Nanotube/Epoxy Composites for Sustainable Energy Applications." Journal of Nanoscience and Nanotechnology. 15 (9), pp. 6957-6964. https://doi.org/10.1166/jnn.2015.10514
Nanoscale Texture on Glass and Titanium Substrates by Physical Vapor Deposition Process
Yarlagadda, Prasad K.D.V., Tesfamichael, Tuquabo, Schuetz, Michael, Valiveti, Lalitsuri and Li, Tong. 2014. "Nanoscale Texture on Glass and Titanium Substrates by Physical Vapor Deposition Process." 12th Global Congress on Manufacturing and Management (GCMM 2014). India 08 - 10 Dec 2014 Netherlands. Elsevier. https://doi.org/10.1016/j.proeng.2014.12.434
Ethanol sensitivity of thermally evaporated nanostructured WO3 thin films doped and implanted with Fe
Ahsan, M., Ahmad, M. Z., Tesfamichael, T., Bell, J. and Yarlagadda, Prasad K. D. V.. 2013. "Ethanol sensitivity of thermally evaporated nanostructured WO3 thin films doped and implanted with Fe." 2nd International Conference on Measurement, Instrumentation and Automation (ICMIA 2013). China 23 - 24 Apr 2013 Scientific.Net. https://doi.org/10.4028/www.scientific.net/AMM.333-335.1938