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Low-temperature solution-processed wavelength-tunable perovskites for lasing

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Low-temperature solution-processed wavelength-tunable perovskites for lasing
นักวิจัย : Xing, Guichuan , Mathews, Nripan , Lim, Swee Sien , Yantara, Natalia , Liu, Xinfeng , Sabba, Dharani , Grätzel, Michael , Mhaisalkar, Subodh , Sum, Tze Chien
คำค้น : DRNTU::Engineering::Materials::Compositional materials science
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Xing, G., Mathews, N., Lim, S. S., Yantara, N., Liu, X., Sabba, D., et al. (2014). Low-Temperature Solution-Processed wavelength-Tunable perovskites for lasing. Nature Materials, in press. , http://hdl.handle.net/10220/18921 , http://dx.doi.org/10.1038/nmat3911 , 176445
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Nature materials
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Low-temperature solution-processed materials that show optical gain and can be embedded into a wide range of cavity resonators are attractive for the realization of on-chip coherent light sources. Organic semiconductors and colloidal quantum dots are considered the main candidates for this application. However, stumbling blocks in organic lasing include intrinsic losses from bimolecular annihilation and the conflicting requirements of high charge carrier mobility and large stimulated emission; whereas challenges pertaining to Auger losses and charge transport in quantum dots still remain. Herein, we reveal that solution-processed organic–inorganic halide perovskites (CH3NH3PbX3 where X = Cl, Br, I), which demonstrated huge potential in photovoltaics, also have promising optical gain. Their ultra-stable amplified spontaneous emission at strikingly low thresholds stems from their large absorption coefficients, ultralow bulk defect densities and slow Auger recombination. Straightforward visible spectral tunability (390–790 nm) is demonstrated. Importantly, in view of their balanced ambipolar charge transport characteristics, these materials may show electrically driven lasing.

บรรณานุกรม :
Xing, Guichuan , Mathews, Nripan , Lim, Swee Sien , Yantara, Natalia , Liu, Xinfeng , Sabba, Dharani , Grätzel, Michael , Mhaisalkar, Subodh , Sum, Tze Chien . (2557). Low-temperature solution-processed wavelength-tunable perovskites for lasing.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xing, Guichuan , Mathews, Nripan , Lim, Swee Sien , Yantara, Natalia , Liu, Xinfeng , Sabba, Dharani , Grätzel, Michael , Mhaisalkar, Subodh , Sum, Tze Chien . 2557. "Low-temperature solution-processed wavelength-tunable perovskites for lasing".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xing, Guichuan , Mathews, Nripan , Lim, Swee Sien , Yantara, Natalia , Liu, Xinfeng , Sabba, Dharani , Grätzel, Michael , Mhaisalkar, Subodh , Sum, Tze Chien . "Low-temperature solution-processed wavelength-tunable perovskites for lasing."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Xing, Guichuan , Mathews, Nripan , Lim, Swee Sien , Yantara, Natalia , Liu, Xinfeng , Sabba, Dharani , Grätzel, Michael , Mhaisalkar, Subodh , Sum, Tze Chien . Low-temperature solution-processed wavelength-tunable perovskites for lasing. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.