皇家华人

We specialise in developing novel and advanced functional materials such as semiconductors via low-cost and scalable processing methods for various energy-oriented applications.

One of the materials of interest for us has been halide perovskites as exciting materials for future high-performance optoelectronics, with rapid developments taking place towards solar cells and LEDs. These materials defy conventional wisdom in that they have moderate defect densities yet retain excellent optoelectronic properties including strong absorption and long charge-carrier diffusion lengths, with the power conversion efficiency (PCE) of solar cells now >25%. Despite the significant progress of PCE in perovskite photovoltaics over the past decade, development of sustainable viable perovskite-based energy devices requires a breakthrough in the development of stable and long-lifetime perovskite materials with high optoelectronic quality. Furthermore, non-toxic alternatives will facilitate the widespread adoption of perovskite materials/devices in wireless sensor networks, consumer electronics and IoT applications. We not only explore various scalable synthesis methods of a large variety of perovskites[1,2] and other novel semiconductors[3] but are also strongly engaged in the analysis of structural and optoelectronic characteristics such as thin-film morphology[4], compositional variation[5,6], charge carrier dynamic[7], and photon-recycling[8,9]. We also employ advanced synchrotron-based techniques at the Diamond Light Source synchrotron such as Grazing-Incidence Wide-Angle X-Ray Spectroscopy (GIWAXS) and Hard X-ray Photoelectron Spectroscopy (HAXPES) to further understand semiconductor material and device behaviour.

Representative publications

[1] M Ibrahim Dar, Mojtaba Abdi鈥�Jalebi, Neha Arora, Michael Gr盲tzel, Mohammad Khaja Nazeeruddin; 鈥�鈥� Adv. Energy Mater.听 6, 1501358 (2016).

[2] Mojtaba Abdi-Jalebi, et al., Michael Gr盲tzel, Richard H. Friend; 鈥�鈥� Adv. Energy Mater., 6, 1502472 (2016).

[3] Sanyang Han, et al., Mojtaba Abdi-Jalebi, Akshay Rao, 鈥�鈥�, Nature, 587, 594鈥�599 (2020).

[4] Naveen Kumar Tailor, Mojtaba Abdi-Jalebi, et al., Soumitra Satapathi, 鈥�鈥�, J. Mater. Chem. A, 2020,8, 21356-21386.

[5] Mojtaba Abdi-Jalebi, et al., Richard H. Friend, Samuel D. Stranks, 鈥�鈥�, ACS Energy Lett., 3, pp 2671鈥�2678 (2018).

[6] Harry C Sansom, et al., Mojtaba Abdi-Jalebi, Laura M Herz, Henry J Snaith, Matthew J Rosseinsky, 鈥�鈥�, J. Am. Chem. Soc., 143, 10, 3983鈥�3992 (2021).

[7] Sascha Feldmann, Mojtaba Abdi-Jalebi, et al., Felix Deschler, 鈥�鈥�, Nature Photonics, 14, 123鈥�128 (2020).

[8] Luis Pazos-Out贸n, Mojtaba Abdi-Jalebi, et al., Richard Friend, Felix Deschler, 鈥�鈥� Science, 351, 1430-1433 (2016).

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