Facile synthesis of a hole transporting material with a silafluorene core for efficient mesoscopic CH3NH3PbI3 perovskite solar cells by Krishna, Anurag, Sabba, Dharani, Yin, Jun, Bruno, Annalisa, Antila, Liisa J., Soci, Cesare, Mhaisalkar, Subodh, Grimsdale, Andrew Clive

“…When S101 was incorporated into a CH3NH3PbI3 perovskite solar cell as a hole transporting material (HTM), a short circuit photocurrent density (Jsc) of 18.9 mA cm−2, an open circuit voltage (Voc) of 0.92 V, and a fill factor (FF) of 0.65 contributing to an overall power conversion efficiency (PCE) of ∼11% which is comparable to the PCE obtained using the current state-of-the-art HTM 2,2′,7,7′-tetrakis(N,N′-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) (η = 12.3%) were obtained. …”
Get full text
Get full text

Ultra-low power real-ime object detection based on quantized CNNs by Chew, Jing Wei

“…Using this approach, the proposed model can run at 37.7 FPS on an NVIDIA Jetson Nano with a peak memory footprint of 17.1 MB, while attaining a reasonable mAP@0.50 Intersection over Union (IoU) of 0.37 on the Pascal Visual Object Classes (VOC) dataset. Furthermore, these figures signify a speedup of 21.8x and a memory usage reduction by a factor of 15.3x compared to a similar YOLOv2 full-precision model architecture. …”
Get full text

Emergent semantic segmentation: training-free dense-label-free extraction from vision-language models by Luo, Jiayun

“…PnP-OVSS demonstrates substantial improvements over comparable baselines (+29.4\% on PASCAL VOC, +13.2\% on PASCAL Context, +14.0\% mIoU on MS COCO, +2.4\% on COCO Stuff) and even outperforms most baselines that conduct additional network training on top of pretrained VLMs.…”
Get full text

Ternary blend organic bulk heterojunction photovoltaics based on incorporation of low bandgap materials by Ling, Jin

“…It was found that, both ternary blend systems succeeded in increasing the non-annealed device power conversion efficiency (PCE) due to broadened absorption spectrum and larger open circuit voltage (VOC). However, after thermal annealing, the PCE of P3HT:PCPDTDT:PCBM ternary blend system increased (from 2.14% to 2.84%) while the PCE of P3HT:DPP:PCBM ternary blend system decreased (from 3.27% to 2.37%). …”
Get full text

Impact of precursor dosing on the surface passivation of AZO/AlOx stacks formed using atomic layer deposition by Wang, Y, Hobson, TD, Swallow, JEN, McNab, S, O'Sullivan, J, Soeriyadi, A, Niu, X, Fraser, RC, Dasgupta, A, Maitra, S, Altermatt, P, Weatherup, RS, Wright, M, Bonilla, RS

“…Herein, we demonstrate exceptional silicon surface passivation using AZO/AlOx stacks deposited with ALD, with a J0 < 1 fA cm−2 and corresponding implied open circuit voltage (iVOC) of 740 mV. We provide a comprehensive analysis of the role of ALD precursor dosing to achieve optimised performance. …”

Intrinsic permanent shape reconfigurable semicrystalline biopolyester thermoset by Chen, Xiangping, Wong, Jie-Wei, Low, Jia Tee, Lok, Tow-Jie, Xue, Yaoting, Zeng, Zehao, Zhang, Kaihang, Shen, Yifeng, Li, Siyang, Zhou, Haofei, Zhao, Qian, Wong, Tuck-Whye, Li, Tiefeng, Yang, Wei

“…Catalyst-free, volatile organic solvent (VOC)-free synthesis of biobased cross-linked polymers is an important sustainable feature in polyesterification. …”

Characterization of accumulated unknown and soil dust on the PV system: An experimental study on the impact and performance analysis by Islam, Md. Imamul, Mohd Shawal, Jadin, Al Mansur, Ahmed

“…According to I–V data measurements, only 0.88% and 41.60% of the 226 strings met the expected Voc and Isc, respectively, and thermal imaging detected that approximately 19.91% of the PV strings were affected by hotspots. …”
Get full text

Impact of dust deposition on PV performance and hotspot generation: I-V and thermal analysis with SEM and UV-VIS-NIR by Islam, Md. Imamul, Mohd Shawal, Jadin, Al Mansur, Ahmed

“…Electrical characterization through I-V curve analysis revealed a decline in key parameters such as short-circuit current (Isc), open-circuit voltage (Voc), maximum power (Pmax), and fill factor (FF), indicating reduced performance attributable to dust accumulation. …”
Get full text

Investigation of Ni as Zn substitute in CZTS thin film solar cell by Quek, Ka Jun

“…In recent years, developments in achieving higher device performance have been halted due to the inherent Voc deficit of CZTSSe. Recent progress in cation substitution of CZTSSe with other metals such as Cd and Ag have shown promising results. …”
Get full text

Highly stable and efficient planar perovskite solar cells using ternary metal oxide electron transport layers by Thambidurai, Mariyappan, Shini, Foo, Harikesh, Padinhare Cholakkal, Mathews, Nripan, Dang, Cuong

“…The Zn1Sn1Ox/SnO2 ETL device demonstrates paramount power conversion efficiency (PCE) of 19.01% with corresponding short circuit current density (Jsc), open circuit voltage (Voc), and fill factor (FF) values of 21.93 mA cm−2, 1.10 V, and 78.82%. …”
Get full text

Understanding the effect of chlorobenzene and isopropanol anti-solvent treatments on the recombination and interfacial charge accumulation in efficient planar perovskite solar cell... by Prochowicz, Daniel, Mohammad Mahdi Tavakoli, Solanki, Ankur, Goh, Teck Wee, Pandey, Kavita, Sum, Tze Chien, Saliba, Michael, Yadav, Pankaj

“…We found that this enhanced hysteresis stems mainly from higher charge accumulation at the TiO2/perovskite interface under illumination that could also lead to formation of excess electrostatic potential contributing to an increased open circuit voltage (Voc). Our study provides a way for in-depth spectroscopic analysis methods aiding a deeper understanding of the interfacial charge characteristics and the fundamental mechanisms of PSCs.…”
Get full text

Optimizing selenization conditions of Cu2CdSn(S,Se)4 by Wong, Jia Mian

“…However, its efficiency is hindered by a large open-circuit voltage deficit (VOC) due to intrinsic defects related to potential fluctuations and band tail states. …”
Get full text

Efficiency enhancement and doping type inversion in Cu₂CdSnS₄ solar cells by Ag substitution by Ibrahim, Ahmad, Lie, Stener, Tan, Joel Ming Rui, Swope, Ryan, Medaille, Axel Gon, Hadke, Shreyash, Saucedo, Edgardo, Agrawal, Rakesh, Wong, Lydia Helena

“…The main limiting factor of kesterite-related solar cells is the low open-circuit voltage (Voc) relative to their bandgap. This drawback has been correlated with the easily formed anti-site defects caused by similar ionic radii and/or chemical valence. …”
Get full text

Investigation of solar cell carrier lifetime using photoconductance lifetime measurements by Sng, Joseph Ding Wen

“…Nanostructured sample which are passivated with MoOx had the highest improvement of 89.7 mv for its Voc as compared to their non-passivated and non -nanostructured counterparts. …”
Get full text

Modulating optical and electrical properties of TiO2 photoanode in dye-sensitized solar cells by Pham, Thi Thu Trang

“…By using high extinction coefficient organic dye and ionic liquid or cobalt electrolyte, the films containing macropores exhibited improved power conversion efficiency, mostly attributed to higher Voc, increasing FF and Jsc at high light intensity. …”
Get full text

Solution based synthesis of Cu2ZnSnS4 nanoparticles and thin films for solar cell application by Li, Zhenggang

“…The as-fabricated device exhibited a total area efficiency of 5.12% with Voc of 378 mV, Jsc of 26.2 mA/cm2 and FF of 51.7%. …”
Get full text

Interface engineering for organic−inorganic hybrid perovskite solar cells by Foo, Shini

“…Systematic characterization of the individual dopants revealed that the improved short−circuit current (JSC) in the devices employing the Al-doped TiO2 ETL was due to the reduced optical losses while the enhanced open−circuit voltage (VOC) and fill factor (FF) of the devices utilizing the In doped TiO2 ETL allowed better energy level alignment and conductivity. …”
Get full text