High-Efficiency Blended Heterojunction Organic Solar Cell with Enhanced PCE Using PCDTBT: PCBM Absorber Layer
DOI:
https://doi.org/10.46610/IJMEEIA.2025.v01i01.005Keywords:
Bulk Heterojunction, Organic solar cell, PCDTBT: PCBM, Silvaco TCAD, PCE, ITOAbstract
This work rigorously explores a Blended Heterojunction (BHJ) Organic Solar Cell (OSC) using a blend of Donor/Acceptor (D/A) fullerene polymers (PCDTBT and PCBM) as the photoactive absorber layer. The proposed OSC has been implemented and modeled using the ATLAS tool of Silvaco TCAD, a widely used commercial software. The thin heterojunction photoactive absorber layer of blended PCDTBT: PCBM D/A polymers increase the diffusion length causing a significant reduction in the Langevin recombination and hence, enhance the Power Conversion Efficiency (PCE). The hole transport is enhanced by a thin layer of PEDOT: PSS, an organic blended polymer. As anode and cathode, Indium Tin Oxide (ITO), a transparent conductive oxide, and Aluminum (Al) are used. The modeling of the OSC has considered the effects of singlet dissociation and recombination, and the Langevin recombination for accuracy and better physical insight. The electrical simulations of the proposed OSC carried out in the Silvaco environment resulted in improved current-voltage characteristics, which demonstrate a high open circuit voltage (0.965 V), an impressive fill factor (66.717%), a moderate short circuit current density (10.505 mA/cm2), and an enhanced PCE (6.766%). The optical simulations of the proposed OSC demonstrate its external quantum efficiency of more than 25% over the wavelength span of 380–1500 nm.
References
S. Ho, H. D. C. Md., M. R. Hamjah Chowdhury, and Md. I. Bahar Chowdhury, “Recent advances in the development of organic solar cells and perovskite solar cells,” International Journal of Engineering Trends and Technology, vol. 72, no. 9, pp. 139–153, Sep. 2024, doi: https://doi.org/10.14445/22315381/ijett-v72i9p112
J.-F. Guillemoles, T. Kirchartz, D. Cahen, and U. Rau, “Guide for the perplexed to the Shockley–Queisser model for solar cells,” Nature Photonics, vol. 13, no. 8, pp. 501–505, Jul. 2019, doi: https://doi.org/10.1038/s41566-019-0479-2
Md. Rashedul Huqe, S. İ. Reba, M. S. Uddin, and İ. Bahar, “Analytical modeling of the base dark saturation current of drift-field solar cells considering auger recombination,” International Journal of Renewable Energy Research, vol. 3, no. 2, pp. 420–426, Jun. 2013, Available: https://dergipark.org.tr/en/pub/ijrer/issue/16079/168254
S. K. Saha, A. M. Farhan, S. I. Reba, S. I. Ferdaus, and Md. I. B. Chowdhury, “An analytical model of dark saturation current of silicon solar cell considering both SRH and auger recombination,” 2011 IEEE Regional Symposium on Micro and Nano Electronics, pp. 9–13, Sep. 2011, doi: https://doi.org/10.1109/rsm.2011.6088280
S. K. Saha, Syeda Israt Ferdaus, Reba, and M. Iqbal, “Effect of field dependent mobility and simultaneous consideration of both SRH and auger recombination on the analytical modeling of internal quantum efficiency of a si-solar cell,” TENCON 2011 - 2011 IEEE Region 10 Conference, Bali, Indonesia, 2011, pp. 662-666, doi: https://doi.org/10.1109/tencon.2011.6129190
Sujoy Kumer Saha, Syeda Israt Ferdaus, Ashif Mohammad Farhan, Sahajadee Islam Reba and Md. Iqbal Bahar Chowdhury, “Effect of field dependent mobility on the analytical modeling of emitter saturation current of a silicon solar cell,” 2011 IEEE International Conference on Computer Applications and Industrial Electronics (ICCAIE), Penang, Malaysia, 2011, pp. 7-11, doi: https://doi.org/10.1109/ICCAIE.2011.6162094
S. Islam, R. Shihabuddin, Rashedulhoqe, and I. B. Chowdhury, “Effect of auger recombination on the emitter saturation current of Si-drift solar cells,” ISTP Journal of Research in Electrical and Electronics Engineering (ISTP-JREEE), pp. 73-79, 2014. Available: https://www.researchgate.net/publication/330117193
M. S. Uddin, M. R. Huqe, M. I. B. Chowdhury. “Analytical model of the internal quantum efficiency of non-uniformly and heavily doped silicon solar cells including non-ideal effects,” International Conference on Materials, Electronics and Information Engineering (ICMEIE 2015), June 5-6, 2015. Available: https://www.researchgate.net/publication/330423418
Md. R. Huqe and Md. I. B. Chowdhury, “Internal quantum efficiency of Si-drift solar cells with non uniformly and heavily doped emitter,” 2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET), pp. 1–4, Jan. 2016, doi: https://doi.org/10.1109/icdret.2016.7421523
M. Y. J. Chowdhury, M. I. B. Chowdhury, and M. I. B. Chowdhury, “Modeling the effects of emitter doping non-uniformity on the internal quantum efficiency of Si-drift solar cells,” SCIREA Journal of Electrics, Communication, and Automatic Control, vol. 1, no. 2, pp. 49-61, 2016. doi: https://doi.org/10.5281/zenodo.15315562
M. R. Huqe, K. M. Kolince, and M. I. B. Chowdhury, “Effect of Ge-content on the internal quantum efficiency of a SiGe solar cell.” In Proceedings of the International Conference on Electrical, Computer and Telecommunication Engineering (ICECTE-2012) pp. 17-20, 2012. doi: https://doi.org/10.5281/zenodo.15301185
M. R. Huqe, H. M. Aziz, K. M. Kolince, M. S. Uddin, and B. Chowdhury, “Effect of Ge-dosing profile of exponentially-doped base on the internal quantum efficiency of a SiGe solar cell,” International Conference on Devices, Circuits and Systems (ICDCS 2012), pp. 119-123, March 15-16, 2012. doi: https://doi.org/10.1109/icdcsyst.2012.6188686
M. J. Islam, M. M. Hasan, R. Sami, and M. Iqbal, “Modeling of graphene/SiO2/Si(n) based metal-insulator-semiconductor solar cells,” 2016 4th International Conference on the Development of Renewable Energy Technology (ICDRET), pp. 1–4, Jan. 2016, doi: https://10.1109/icdret.2016.7421491
M. M. Hasan, S. Akther and M. I. B. Chowdhury, “Investigation of graphene/silicon-di oxide/gallium arsenide based MIS solar cell using silvaco TCAD,” Proceedings of 14th Global Engineering and Technology Conference, pp. 1-7, 2017. doi: https://doi.org/10.5281/zenodo.15301225
M. M. Rahman, M. M. Haque, and I. B. Chowdhury, “Current-voltage characteristics of hydrogenated a: Si thin film solar cells: An analytical approach,” International Conference on Electrical, Computer and Telecommunication Engineering (ICECTE-2012), Rajshahi, Bangladesh, Jan. 21-24, 2013, Jan. 2013, Available: https://www.researchgate.net/publication/330423383
M. Ali, A. N. Islam, and I. B. Chowdhury, “Current-voltage characteristics of amorphous-Si based plasmonic solar cells with photonic crystal back reflectors,” ISTP Journal of Research in Electrical and Electronics Engineering (ISTP-JREEE), pp. 63-66, Aug. 2014. Available: https://www.researchgate.net/publication/330117338
M. J. Islam, M. I. H. Arif, and M. I. B. Chowdhury, “Internal quantum efficiency of hydrogenated amorphous silicon-based plasmonic thin film solar cells using photonic crystal back reflectors,” Journal of Electrical and Power System Engineering, vol. 6, no. 1, pp. 27-32, 2020. doi: http://dx.doi.org/10.5281/zenodo.3740876
Md. M. Haque, Md. M. Rahman, and Md. I. B. Chowdhury, “Current-voltage characteristics of CdS/CdTe thin film solar cells: An analytical approach,” 2014 3rd International Conference on the Developments in Renewable Energy Technology (ICDRET), pp. 1–4, May 2014, doi: https://doi.org/10.1109/icdret.2014.6861729
P. Biswas, A. S. Hasan, A. B. Rahim, A. Ullah, and I. B. Chowdhury, “Analytical approach of J-V characteristics of CdTe based thin film solar cells including voltage and space-dependent electric field in the absorber layer,” 2015 2nd International Conference on Electrical Information and Communication Technologies (EICT), pp. 446–450, Dec. 2015, doi: https://doi.org/10.1109/eict.2015.7391994
Sanimul Alam Rivon, P. Biswas, A. S. Hasan, A. B. Rahim, and M. Iqbal, “Analytical modelling of Cds/CdTe based thin film solar cells considering surface recombination,” 2nd International Conference on Electrical Engineering and Information and Communication Technology (iCEEiCT), Sep. 22-24, pp. 1-5, 2016. doi: https://10.1109/ceeict.2016.7873135
M. M. Romel, R. Khan, Saba Shommo, and I. B. Chowdhury, “Analytical modeling of internal quantum efficiency of CIGS solar cell,” International Conference on Electrical, Computer and Telecommunication Engineering (ICECTE-2012), pp. 9-12, Jan. 21-24, 2013. Available: https://www.researchgate.net/publication/330423311
Md. M. Haque, Md. M. Rahman, and Md. I. B. Chowdhury, “Current-voltage characteristics of CdS/CIGS thin film solar cells: An analytical approach,” 2014 1st International Conference on Non-Conventional Energy (ICONCE 2014), pp. 24–27, Jan. 2014, doi: https://doi.org/10.1109/iconce.2014.6808695
B. Rahim, A. S. Hasan, P. Biswas, A. Ullah, and M. Iqbal, “Analytical modeling of J-V characteristics of CIGS based thin film solar cell considering voltage and space-dependent electric field in the absorber layer,” 3rd International Conference on Advances in Electrical Engineering (ICAEE 2015), pp. 368-371, December 17-19, 2015. doi: https://10.1109/icaee.2015.7506871
M. J. Islam, D. Chowdhury, H. Chowdhury, and I. B. Chowdhury, “Investigation of improved performance of ZnO/CIGS-based solar cells,” Journal of Advance Electrical Engineering and Devices, pp. 1–15, 2024, Available: https://matjournals.net/engineering/index.php/JAEED/article/view/911
Ayesha, S. K. Silvi, and M. I. B. Chowdhury, “Internal quantum efficiency and current-voltage characteristics modeling of ZnO/CZTS based thin film solar cells,” ISTP Journal of Research in Electrical and Electronics Engineering, pp. 110-114, 2014. Available: https://doi.org/10.5281/zenodo.15306851
None Ayesha, None Kulsum, S. K. Silvi, and M. Iqbal, “Modeling of J-V characteristics of CZTS based thin film solar cells including voltage and space-dependent electric field in the absorber layer,” 4th International Conference on the Development of Renewable Energy Technology (ICDRET), Jan. 5-7, 2016. doi: https://10.1109/icdret.2016.7421486
K. N. Nikita, M. A. Gaffar, and M. I. B. Chowdhury, “Exploring the opportunity of using graphene as the transparent conducting layer in CZTS-based thin film solar cells,” 2nd International Conference on Electrical Engineering and Information and Communication Technology (iCEEiCT), Sep. 22-24, 2016. doi: https://10.1109/ceeict.2016.7873130
M. M. Hasan and M. Iqbal, “Modelling and analysis of CdS/CZTSSe based thin film solar cell,” Journal of Modeling and Optimization, vol. 10, no. 2, pp. 88–93, 2018, Accessed: May 26, 2025. Available: https://xpublication.com/index.php/jmo/article/view/220
K. W. J. Barnham and G. Duggan, “A new approach to high‐efficiency multi‐band‐gap solar cells,” Journal of Applied Physics, vol. 67, no. 7, pp. 3490-3493, 1990. doi: https://doi.org/10.1063/1.345339
M. J. Islam, and M. I. B. Chowdhury, “Investigation of an InGaN based quantum well solar cell using Silvaco TCAD,” Journal of Advance Electrical Engineering and Devices, vol. 2, no. 2, pp. 30-41, 2024. doi: https://doi.org/10.5281/zenodo.15307136
S. N. Nabiah, M. J. Islam, and M. I. B. Chowdhury, “Silvaco TCAD implementation of all-InGaN based quantum well solar cell,” Journal of Advancement in Communication System, vol. 7, no. 3, pp. 1-8, 2024. doi: https://doi.org/10.5281/zenodo.12703123
S. Mostafa, M. Nadeem, M. Imran, M. J. Islam, and M. Iqbal, “Performance optimization of quantum well solar cells through layer thickness variation,” In 2020 23rd International Conference on Computer and Information Technology (ICCIT), pp. 1-6, 2020. doi: https://doi.org/10.1109/ICCIT51783.2020.9392741
M. J. Islam, S. Mostafa, and M. I. B. Chowdhury, “Thickness optimization of single junction quantum well solar cell using TCAD,” International Journal of Engineering and Technologies, vol. 18, pp. 1-7, 2020. doi: https://doi.org/10.5281/zenodo.15307162
M. I. H. Arif et al., “Investigation of quantum efficiency of GaAs/InAs-based quantum well solar cell,” Journal of Instrumentation and Innovation Sciences, vol. 6, no. 1, pp. 41-48, 2021. doi: https://doi.org/10.5281/zenodo.15302362
M. J. Islam, S. Mostafa, S. and M. I. B. Chowdhury, “SILVACO TCAD implementation of dual junction quantum well solar cell,” Journal of Alternative and Renewable Energy Sources, vol. 6, no. 1, pp. 14-19, 2020. doi: https://doi.org/10.5281/zenodo.3697890
V. M. Aroutiounian, S. Petrosyan, A. Khachatryan, and K. J. Touryan, “Quantum dot solar cells,” Solar and Switching Materials, vol. 4458, pp. 38-45, 2001. doi: https://doi.org/10.1117/12.448264
K. M. T. Alam et al., (2014). “J-V Characteristics of Gan-based solar cell with InGan-quantum-dots layers in the absorber,” ISTP Journal of Research in Electrical and Electronics Engineering, pp. 55-58, 2014. doi: https://doi.org/10.5281/zenodo.15306886
S. S. Nawaz, F. N. N. Haque and M. I. B. Chowdhury, “Silvaco TCAD implementation of GaAs/GaSb quantum dot solar cell,” Advancement of Signal Processing and its Applications, vol. 5, no. 3, pp. 1-5, 2022. doi: https://doi.org/10.5281/zenodo.15307122
W. H. Chowdhury, Z. A. Sara, M. M. Miah, M. Das, and M. Iqbal, “Efficiency enhancement of a PCDTBT/PC71 BM-based organic solar cell through layer-thickness optimization,” 2021 2nd International Conference on Robotics, Electrical and Signal Processing Techniques (ICREST), pp. 684–688, Jan. 2021, doi: https://doi.org/10.1109/icrest51555.2021.9331006
N. Chakma et al., “A Silvaco TCAD approach of performance analysis of P3HT-based organic solar cell,” Journal of Advance Electrical Engineering and Devices, vol. 2, no. 3, pp. 29-42, 2024. doi: https://doi.org/10.5281/zenodo.15307187
H. Chowdhury, D. Chowdhury, M. J. Islam, and I. B. Chowdhury, “SILVACO TCAD Based investigation of P3HT: PCBM-based bulk heterojunction organic solar cell,” Journal of Instrumentation and Innovation Sciences, vol. 9, no. 3, pp. 18–37, 2024, Available: https://matjournals.net/engineering/index.php/JIIS/article/view/1113
Md. N. Islam, Md. H. D. Chowdhury, Md. R. H. Chowdhury, M. J. Islam, and Md. I. B. Chowdhury, “TCAD implementation of a cost-effective, stable, and highly-efficient PCDTBT: PCBM-based organic solar cell,” Lecture Notes in Electrical Engineering, pp. 413–427, 2025, doi: https://doi.org/10.1007/978-981-97-9037-1_29
B. O’Regan and M. Grätzel, “A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films,” Nature, vol. 353, no. 6346, pp. 737–740, Oct. 1991, doi: https://doi.org/10.1038/353737a0
M. N. Islam, Muhammad, D. Chowdhury, M. J. Islam, M. L. Rahaman, and M. Iqbal, “A high-efficiency dye-sensitized solar cell using PCDTBT: PCBM as solid electrolyte and graphene oxide as hole transport layer,” In 2024 6th International Conference on Electrical Engineering and Information & Communication Technology (ICEEICT), pp. 933–938, May 2024, doi: https://doi.org/10.1109/iceeict62016.2024.10534413
Kojima, K. Teshima, Y. Shirai, and T. Miyasaka, “Organometal halide perovskites as visible-light sensitizers for photovoltaic cells,” Journal of the American Chemical Society, vol. 131, no. 17, pp. 6050–6051, May 2009, doi: https://doi.org/10.1021/ja809598r
R. H. Chowdhury, H. D. Chowdhury, M. J. Islam, and I. B. Chowdhury, “High-Performance MAPbI3-based perovskite solar cell: Design, simulation, and analysis of optoelectronic properties and efficiency metrics using SILVACO TCAD,” The Journal of Engineering and Exact Sciences, vol. 10, no. 10, pp. 21057–21057, Dec. 2024, doi: https://doi.org/10.18540/jcecvl10iss10pp21057
N. Karim, Farha Islam Mime, M. R. Islam, and Ibrahim Mustafa Mehedi, “Tandem organic solar cells with improved efficiency, “ In 2017 International Conference on Electrical, Computer and Communication Engineering (ECCE), pp. 820–825, Feb. 2017, doi: https://doi.org/10.1109/ecace.2017.7913016
Islam and M. I. B. Chowdhury, “A simulink-based generalized model of PV cell/array,” 3rd International Conference on the Developments in Renewable Energy Technology (ICDRET 2014), pp. 1-5, May 29-31, 2014. DOI: https://doi.org/10.1109/ICDRET.2014.6861683
Islam and M. I. B. Chowdhury, Simulation of two-diode model based PV solar cell/array: A SIMULINK approach,” ISTP Journal of Research in Electrical and Electronics Engineering (ISTP-JREEE), pp. 67-72, 2014. Available: https://www.researchgate.net/publication/330117425
R. Swami, R. Awasthi, and S. Tiwari, “Efficiency rise in PCDTBT: PC70BM organic solar cell using interface additive,” Chapter 9 in Recent Advances in Photovoltaics, pp. 291-298, 2017. doi: https://dx.doi.org/10.21741/9781945291371-9
