T
Tze Chien Sum
Researcher at Nanyang Technological University
Publications - 334
Citations - 32030
Tze Chien Sum is an academic researcher from Nanyang Technological University. The author has contributed to research in topics: Perovskite (structure) & Photoluminescence. The author has an hindex of 73, co-authored 305 publications receiving 25873 citations. Previous affiliations of Tze Chien Sum include National Institute of Education & National University of Singapore.
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Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH3NH3PbI3
Guichuan Xing,Nripan Mathews,Shuangyong Sun,Swee Sien Lim,Yeng Ming Lam,Michael Grätzel,Michael Grätzel,Subodh Mhaisalkar,Tze Chien Sum +8 more
TL;DR: Two studies show, using a variety of time-resolved absorption and emission spectroscopic techniques, that perovskite materials manifest relatively long diffusion paths for charge carriers energized by light absorption, highlighting effective carrier diffusion as a fruitful parameter for further optimization.
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Low-temperature solution-processed wavelength-tunable perovskites for lasing
Guichuan Xing,Nripan Mathews,Swee Sien Lim,Natalia Yantara,Xinfeng Liu,Dharani Sabba,Michael Grätzel,Michael Grätzel,Subodh Mhaisalkar,Tze Chien Sum +9 more
TL;DR: It is revealed that solution-processed organic-inorganic halide perovskites (CH3NH3PbX3), which demonstrated huge potential in photovoltaics, also have promising optical gain and may show electrically driven lasing.
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Perovskite Materials for Light-Emitting Diodes and Lasers.
Sjoerd A. Veldhuis,Pablo P. Boix,Natalia Yantara,Mingjie Li,Tze Chien Sum,Nripan Mathews,Subodh Mhaisalkar +6 more
TL;DR: Although perovskite light-emitting devices are yet to become industrially relevant, in merely two years these devices have achieved the brightness and efficiencies that organic light-EMitting diodes accomplished in two decades.
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The origin of high efficiency in low-temperature solution-processable bilayer organometal halide hybrid solar cells
Shuangyong Sun,Teddy Salim,Nripan Mathews,Martial Duchamp,Chris Boothroyd,Guichuan Xing,Tze Chien Sum,Yeng Ming Lam,Yeng Ming Lam +8 more
TL;DR: In this paper, the authors reported the origin of the high efficiency in solution-processable bilayer solar cells based on methylammonium lead iodide (CH3NH3PbI3) and [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM).
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Advancements in perovskite solar cells: photophysics behind the photovoltaics
Tze Chien Sum,Nripan Mathews +1 more
TL;DR: In this paper, the basic working mechanisms of perovskite solar cells in relation to their intrinsic properties and fundamental photophysics are reviewed and the current state-of-the-art and open questions in this maturing field are also highlighted.