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Cite This: J. Phys. Chem. Lett. 2017, 8, 5239-5239
Perspective Collections in the Limelight e at The Journal of Physical Chemistry Letters are always striving to bring our readers the best work in the field, and we are pleased to introduce our Perspective Collections. Of course, Perspectives are not new to the journal; JPC Letters has featured these invited papers since our inaugural issue in 2010. These brief reports, highlighting a specific topic of interest to physical chemists and chemical physicists, are consistently among our most highly cited papers. Each one of our new Perspective Collections has a central focus on a topic of emerging interest in physical chemistry research and is organized by an area expert chosen by one of the journal’s senior editors. The organizing editor chooses the topic and the authors, who are invited based on their specific areas of expertise and unique viewpoints. Emilio J. Juarez-Perez (Okinawa Institute of Science and Technology) is organizing a collection on the topic “The Causes of Degradation of Perovskite Solar Cells”. As stated in the full topic description, “Elucidating how hybrid perovskites suffer degradation and which gas products of degradation are released are key questions for developments on the encapsulation of devices focusing on the long-term stability of this technology”. Juarez-Perez recently co-authored “Methylammonium Lead Bromide Perovskite Light-Emitting Diodes by Chemical Vapor Deposition” with coauthors Matthew R. Leyden, Lingqiang Meng, Yan Jiang, Luis K. Ono, Longbin Qiu, Chuanjiang Qin, Chihaya Adachi, and Yabing Qi (J. Phys. Chem. Lett. 2017, 8, 3193−3198, DOI: 10.1021/acs.jpclett.7b01093; accessed online 908 times as of October 10, 2017). In their Letter, the authors demonstrate an all-vaporphase MAPbBr3 perovskite growth process for light-emitting diodes (LEDs) and report chemical vapor deposition for perovskite LEDs with luminance up to 560 cd/m2. The authors note that there are many advantages to a chemical vapor deposition-based growth process to prepare perovskites, including ease of patterning, ability to batch process, material compatibility, and potential for scale-up. Omar F. Mohammed (King Abdullah University of Science and Technology) is organizing a collection around the theme “Zero-Dimensional Perovskites: Challenges and Unique Applications”. As Mohammed notes in the topic description, the high photoluminescence quantum yield (PLQY) of lowdimensional perovskites contradicts conventional expectations from typical perovskite materials, making the high PLQY a topic of debate in the perovskite community. “In general, the three-dimensional structure of perovskite materials has become one of the most promising candidates as an absorber layer for many potential applications including solar cells and light-emitting diodes due to their remarkable optical and electronic properties”, said Mohammed. “All the work and improvements in the literature have focused on various fabrication methods, device architectures, and surface passivation; however, no progress has been made to understand the actual operational temperature on the electronic properties and the device performances.” To address this knowledge gap, Mohammed, along with Banavoth Murali, Emre Yengel, Wei
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© 2017 American Chemical Society
Peng, Zhijie Chen, Mohd S. Alias, Erkki Alarousu, Boon S. Ooi, Victor Burlakov, Alain Goriely, Mohamed Eddaoudi, and Osman M. Bakr, studied the effect of temperature on optoelectronic properties, charge separation, charge recombination dynamics, and photoconversion efficiency. The resulting article, “Temperature-Induced Lattice Relaxation of Perovskite Crystal Enhances Optoelectronic Properties and Solar Cell Performance” (J. Phys. Chem. Lett. 2017, 8, 137−143, 10.1021/ acs.jpclett.6b02684) has been accessed online 906 times as of October 10, 2017. At the same time, says Mohammed, “the zero-dimensional structure of perovskite materials with their unique optical behavior became the next big thing in the perovskite community, but nobody managed to make perovskite nanocrystals with zero dimensionality”. Mohammed and his coauthors, Yuhai Zhang, Makhsud I. Saidaminov, Ibrahim Dursun, Haoze Yang, Banavoth Murali, Erkki Alarousu, Emre Yengel, Buthainah A. Alshankiti, and Osman M. Bakr, wrote “ZeroDimensional Cs4PbBr6 Perovskite Nanocrystals” (J. Phys. Chem. Lett. 2017, 8, 961−965, 10.1021/acs.jpclett.7b00105; accessed online 1763 times as of October 10, 2017), in which they described the synthesis of colloidal semiconductor zerodimensional perovskite nanocrystals, enabled through the design of a low-temperature reverse microemulsion method with very high reaction yield and high photoluminescence quantum yield even in the solid form. Look for our next “In the Limelight” article, in which we will introduce two more upcoming Perspective Collections and their dedicated and hard-working organizers.
Gregory D. Scholes Princeton University
Juan Bisquert Universitat Jaume I
Maria Forsyth Deakin University
Benedetta Mennucci University of Pisa
Oleg Prezhdo University of Southern California
Francisco Zaera University of California, Riverside
Timothy Zwier Purdue University
George C. Schatz
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Northwestern University
AUTHOR INFORMATION
ORCID
Gregory D. Scholes: 0000-0003-3336-7960 Notes
The authors declare no competing financial interest. Published: October 19, 2017 5239
DOI: 10.1021/acs.jpclett.7b02682 J. Phys. Chem. Lett. 2017, 8, 5239−5239
