Article
Chemistry, Physical
Min-Ah Park, Sae Jin Sung, You Jin Ahn, Inhwa Hong, Ik Jae Park, Chong Rae Park, Jin Young Kim
Summary: A thin graphene oxide layer has been developed as a hole transport layer for transparent and flexible p-i-n-type perovskite solar cells, showing high efficiency and good long-term stability. The GO layer demonstrates excellent hole-extracting capabilities and uniform coverage on the substrate, leading to enhanced device stability compared to conventional PEDOT:PSS-based counterparts.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Polymer Science
Jae Woong Jung, Seung Hwan Son, Jun Choi
Summary: The study demonstrates that the polyaniline composite film has enhanced electrical conductivity and suitable energy level matching with CH3NH3PbI3 to improve the photovoltaic properties of the device. The composite film-based devices achieved a maximum efficiency of 16.61%, which is 21.6% higher than the device with pristine polyaniline. Additionally, the reduced graphene oxide-based composite film showed superior long-term stability compared to the pristine polyaniline-based device, indicating great potential for high performance perovskite solar cells.
Article
Nanoscience & Nanotechnology
Hyoungmin Park, Seonghwa Jeong, Eunsoo Kim, Sooeun Shin, Hyunjung Shin
Summary: Perovskite solar cells have great potential for photovoltaic applications, but their stability is a challenge. In this study, we used atomic layer deposition-grown transition metal oxides as hole transport materials to improve the stability of perovskite solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yali Liu, Tianfei Xu, Zhuo Xu, Hao Zhang, Tengteng Yang, Zezhang Wang, Wanchun Xiang, Shengzhong Liu
Summary: The addition of biocompatible material tryptamine (TA) in the hole transporting layer (HTL) improves surface defects and moisture stability of inorganic perovskite films in metal halide solar cells. This strategy significantly enhances the open circuit voltage and power conversion efficiency of the devices, and increases the stability of the cells in humid environments.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Binbin Wang, Lingwei Xue, Shiqi Wang, Yao Li, Lele Zang, Hongtao Liu, Zhiguo Zhang, Yongfang Li
Summary: A low-cost polymerized VB-CB is designed as a hole-transporting material for inverted planar perovskite solar cells, resulting in a high power conversion efficiency of 17.58% with minimal hysteresis. Compared to PEDOT:PSS, devices with VB-CB exhibit better stability under one sun illumination, with a T80 exceeding 1000 hours. The results suggest that polymerized VB-CB is a suitable material for commercial applications in planar perovskite solar cells due to its low-cost, high efficiency, and good stability.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
D. S. Zamoretskov, I. E. Kuznetsov, A. N. Zhivchikova, M. M. Tepliakova, D. K. Sagdullina, M. V. Gapanovich, V. G. Kurbatov, A. G. Nasibulin, A. V. Akkuratov
Summary: Hybrid organic-inorganic perovskite solar cells (PSCs) have gained significant attention in the past decade due to their high power conversion efficiency and low-cost fabrication. In this study, two novel conjugated polymers were synthesized and examined as hole-transport materials in PSCs, demonstrating promising efficiency and operational stability.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Marcos del Cueto, Charles Rawski-Furman, Juan Arago, Enrique Orti, Alessandro Troisi
Summary: This study created a dataset of 269 perovskite solar cells and proposed a predictive machine learning model for screening candidate hole-transporting materials, accurately predicting cell performance, analyzing the impact of data biases on the model, and determining the correlation between chemical fragments and cell efficiency.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Jianxing Xia, Yi Zhang, Chuanxiao Xiao, Keith Gregory Brooks, Min Chen, Junsheng Luo, Hua Yang, Nadja Isabelle Desiree Klipfel, Jihua Zou, Yu Shi, Xiaojun Yao, Jiangzhao Chen, Joseph M. Luther, Hongzhen Lin, Abdullah M. Asiri, Chunyang Jia, Mohammad Khaja Nazeeruddin
Summary: This study reports a new dopant, DIC-PBA, as an alternative to Li-TFSI/t-BP, which improves the stability and efficiency of perovskite solar cells. Experimental results show that DIC-PBA can effectively dope HTMs and the perovskite surface, improving interfacial charge transport and thus enhancing the stability and efficiency of the cells.
Article
Multidisciplinary Sciences
Ahmed Mourtada Elseman
Summary: A novel HTM based on silver thiocyanate (AgSCN) was synthesized and characterized for its use in p-i-n perovskite solar cells (PSCs). Thin, conformal AgSCN films were produced using a fast solvent removal approach, enabling quick carrier extraction and collection. The addition of AgSCN improved charge transfer between the HTL and perovskite layer, leading to enhanced performance compared to PEDOT:PSS. Crystallographic discrepancies were observed in the perovskite film, indicating the development of templated perovskite on the surface of AgSCN. With a high open circuit voltage (V-OC) and power conversion efficiency (PCE) of 16.66%, AgSCN-based PSCs show great potential for application in flexible modules or as a front cell in hybrid tandem solar cells.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Mustafa K. A. Mohammed, Ali K. Al-Mousoi, Sadeer M. Majeed, Sangeeta Singh, Anjan Kumar, Rahul Pandey, Jaya Madan, Duha S. Ahmed, Davoud Dastan
Summary: Hole transport material-free perovskite solar cells (HFPSCs) can be improved in stability and efficiency by adding malonic acid (MA), which increases crystallinity and reduces charge recombination and trap density. The MA-modified perovskite layer also has better water repellency and higher shelf stability.
Article
Chemistry, Physical
Yeasin Khan, Yohan Ahn, Ju Hwan Kang, Azmat Ali, Yu Jung Park, Bright Walker, Jung Hwa Seo
Summary: Interfacial layers play an important role in controlling the band structure and performance of perovskite solar cells. This study demonstrates the use of anionic polystyrene sulfonate (PSS) polyelectrolytes as p-type interfacial layers in perovskite solar cells. The formation of interfacial dipoles effectively modifies the work function of PEDOT:PSS and the Fermi energy of the CH3NH3PbI3 layer, resulting in improved electron blocking and hole extracting characteristics at the anode.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Albertus Adrian Sutanto, Vellaichamy Joseph, Cansu Igci, Olga A. Syzgantseva, Maria A. Syzgantseva, Vygintas Jankauskas, Kasparas Rakstys, Valentin I. E. Queloz, Ping-Yu Huang, Jen-Shyang Ni, Sachin Kinge, Abdullah M. Asiri, Ming-Chou Chen, Mohammad Khaja Nazeeruddin
Summary: Two structural isomers of carbazole with triarylamine substitution were synthesized and studied for their impact on various properties. One isomer, Car[2,3], exhibited the highest power conversion efficiency in perovskite solar cells, attributed to efficient hole transport due to suitable energy alignment.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Physical
Kritsada Hongsith, Natthakrit Subtim, Arucha Aryaruknukul, Rangsan Panyathip, Wakul Bumrungsan, Sukrit Sucharitakul, Surachet Phadungdhitidhada, Supab Choopun
Summary: This study investigates the use of nickel compound quantum dots prepared via electrochemical process as hole transporting layer (HTL) in perovskite solar cells (PSCs). The NiO films prepared from these quantum dots show improved power conversion efficiency and higher stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Dingyan Huang, Huimin Xiang, Ran Ran, Wei Wang, Wei Zhou, Zongping Shao
Summary: Organic-inorganic halide perovskite solar cells have gained significant attention due to their high-power conversion efficiencies, facile fabrication, and low cost. However, the instability issue, caused by the poor quality of perovskite films and the limited heat and moisture tolerance of organic hole-transporting layer (HTL), hinders their commercialization. Inorganic HTL materials have emerged as promising alternatives due to their high chemical stability, wide band gap, high light transmittance, and low cost. This review highlights the recent advancements in the design and fabrication of nanostructured inorganic HTLs for PSCs, emphasizing their superiority over organic counterparts in terms of moisture and heat tolerance, hole transfer capability, and light transmittance. Additionally, strategies to enhance the performance of inorganic HTLs, such as fabrication route design and nanocomposite construction, are proposed. The challenges and future research directions for nanostructured inorganic HTL-based PSCs are also discussed. This review provides valuable guidelines for the development of high-efficiency and durable inorganic HTL-based PSCs.
Article
Energy & Fuels
Fateme Mohamadkhani, Maryam Heidariramsheh, Sirus Javadpour, Ehsan Ghavaminia, Seyyed Mohammad Mahdavi, Nima Taghavinia
Summary: The synthesized Sb2S3 and Cu3SbS4 nanocrystals can be used as hole transporting layers in perovskite solar cells, showing higher performance and stability compared to Spiro-OMeTAD. The perovskite solar cells fabricated using Sb2S3 and Cu3SbS4 nanocrystals demonstrate higher power conversion efficiency.
Article
Engineering, Electrical & Electronic
Nima E. Gorji, Amirhosein Mosavi, Arash Rouhi, Pezhman Darvishzadeh, Mahdi Ghadiri
JOURNAL OF ELECTRONIC MATERIALS
(2020)
Review
Physics, Applied
Amirhosein Mosavi, Nima E. Gorji
MODERN PHYSICS LETTERS B
(2020)
Article
Materials Science, Multidisciplinary
A. Ghobadi, M. Yousefi, M. Minbashi, A. H. Ahmadkhan Kordbacheh, AR. Haji Abdolvahab, N. E. Gorji
Article
Physics, Condensed Matter
Mahdi Ghadiri, Aniseh Kafi Kang, Nima E. Gorji
SUPERLATTICES AND MICROSTRUCTURES
(2020)
Article
Chemistry, Multidisciplinary
Avto Tavkhelidze, Amiran Bibilashvili, Larissa Jangidze, Nima E. Gorji
Summary: Recent study observed geometry-induced quantum effects in periodic nanostructures, particularly in Silicon NG layers. The Fermi-level tuning of G-doped layers by changing NG depth was investigated, showing a significant increase in the Fermi level at 10 nm depth, with decreasing effects in p- and n-type substrates. The results were explained using the G-doping theory and G-doped layer formation mechanism introduced in previous works.
Article
Chemistry, Multidisciplinary
Bo-Tau Liu, Hong-Ru Lin, Rong-Ho Lee, Nima E. Gorji, Jung-Chuan Chou
Summary: Introducing POSS as an ultra-thin passivation layer in perovskite solar cells can effectively increase the grain size, reduce electron-hole recombination at grain boundaries, enhance short-circuit current, and slightly increase open-circuit voltage.
Article
Chemistry, Multidisciplinary
Justina G. Motas, Nima E. Gorji, Dumitru Nedelcu, Dermot Brabazon, Fabrizio Quadrini
Summary: The study focuses on developing a new antibacterial material by coating biopolymer pellets with silver nanoparticles, involving steps such as silver nano-coating, injection molding, and press molding. Various characterization techniques are used to analyze the mechanical and thermal properties of the nano-coating layer.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Avtandil Tavkhelidze, Larissa Jangidze, Zaza Taliashvili, Nima E. Gorji
Summary: Geometry-induced doping (G-doping) has been successfully achieved in semiconductor nanograting layers, leading to the fabrication of p-p(v) junction with significantly low forward voltage and reduced reverse current. The formation mechanism of p-p(v) junction has been proposed, explaining the impact of G-doping depth and depletion width on the reduction of reverse current. Theoretical analysis shows that the decrease in reverse current is attributed to the lower carrier generation rate resulting from the reduced density of quantum states within the G-doped region.
Article
Green & Sustainable Science & Technology
Soma Zandi, Mohsen Jamshidi Seresht, Afrasyab Khan, Nima E. Gorji
Summary: A coupled optical-electrical-thermal modeling was developed to investigate heat generation and dissipation in Cu2ZnSn4SxSe4-x thin film solar cells. The study found that thermalization is the dominant heat generation factor, while factors like Joule heat, non-radiative recombination heat, and surface recombination heat also play important roles. Temperature increases during operation, affecting the fill factor and power conversion efficiency.
Article
Engineering, Electrical & Electronic
Quang-Duy Dao, Nima E. Gorji, Aiyeshah Alhodaib, Thi-Ngoc Dinh, Akihiko Fujii, Masanori Ozaki, Ali Hajjiah
Summary: A new design of perovskite solar cells (PSCs) with non-peripherally substituted octahexylphthalocyanine (C6PcH(2)) hole transporting material (HTM) and MoOx buffer layer was introduced. Experiment and simulation analysis were conducted to evaluate the photovoltaic performance of the PSCs based on C6PcH(2) HTMs. The results showed that the PSCs exhibited good performance and simulation analysis suggested potential improvements at lower temperatures.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Chemistry, Physical
Wided Hizi, Hedi Rahmouni, Nima E. Gorji, Ahlem Guesmi, Naoufel Ben Hamadi, Lotfi Khezami, Essebti Dhahri, Kamel Khirouni, Malek Gassoumi
Summary: La0.9Sr0.1MnO3 nanoparticles were prepared using the citrate-gel route and sintered at different temperatures. The increase in sintering temperature led to an increase in grain size and a shift in the metal-semiconductor transition temperature of the material. The electrical properties were found to be influenced by the microstructure of the material and the relaxation phenomenon.
Article
Materials Science, Multidisciplinary
Olfa Kamoun, Abdelaziz Gassoumi, Mohd. Shkir, Nima E. Gorji, Najoua Turki-Kamoun
Summary: This work focuses on the fabrication of Ce and Cu co-doped MoO3 nanostructured films and their high efficiency in photocatalytic degradation of dyes.
Article
Chemistry, Multidisciplinary
Ming-Lang Tseng, Ayomide Adesiyan, Abdelaziz Gassoumi, Nima E. E. Gorji
Summary: Several studies have shown that water behavior at the nanoscale has a significant impact on the synthesis of materials for technological applications. This study conducted molecular dynamics simulations to determine the phase diagram of water confined by graphene stack sheets. The results offer crucial direction for system design and configuration of materials at the graphene/water interface.
JOURNAL OF NANOPARTICLE RESEARCH
(2023)
Article
Physics, Applied
Ming-Lang Tseng, Nazanin Eshaghi, Abdelaziz Gassoumi, Mehran Mohseni Dehkalani, Nima E. Gorji
Summary: The study examined the impact of three different types of soiling (dust, leaf, rainfall) on the current-voltage and power-voltage characteristics of a solar panel in various locations. Measurements of current and power losses were taken over a 50-day period with a 10-day interval. The soiling ratio was found to be a reliable parameter for assessing the impact of soiling. Results showed that leaves had the most detrimental effect, causing a 38% power loss compared to dust and raindrop, with the lowest loss in current density and power attributed to raindrop (29%). The study also revealed the critical impact of leaf-soiling on defect generation and reduced photocurrent generation.
MODERN PHYSICS LETTERS B
(2023)
Article
Metallurgy & Metallurgical Engineering
Ming-Lang Tseng, Muhammad I. Aslam, Emad A. A. Ismail, Fuad A. Awwad, Nima E. Gorji
Summary: Heat treatment is crucial for improving the characteristics of LPBF components, and precise control of temperature, heating, and cooling rates is necessary. Research has shown that heat treatment temperature can change the microstructure and mechanical properties of the material, as well as affect grain size and porosity.
METALLURGICAL RESEARCH & TECHNOLOGY
(2023)