DICP OpenIR
Polar rotor scattering as atomic-level origin of low mobility and thermal conductivity of perovskite CH3NH3PbI3
Li, Bing1; Kawakita, Yukinobu1; Liu, Yucheng2; Wang, Mingchao3; Matsuura, Masato4; Shibata, Kaoru1; Ohira-Kawamura, Seiko1; Yamada, Takeshi4; Lin, Shangchao3; Nakajima, Kenji1; Liu, Shengzhong (Frank)2,5
Source PublicationNATURE COMMUNICATIONS
2017-06-30
DOI10.1038/ncomms16086
Volume8
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology
WOS SubjectMultidisciplinary Sciences
WOS Research AreaScience & Technology - Other Topics
WOS KeywordINORGANIC HYBRID PEROVSKITES ; METHYLAMMONIUM LEAD HALIDE ; HOT-PHONON BOTTLENECK ; TRANSPORT-PROPERTIES ; IODIDE PEROVSKITES ; PHASE-TRANSITIONS ; HIGH-PERFORMANCE ; SINGLE-CRYSTALS ; ORGANIC CATIONS ; SOLAR-CELLS
AbstractPerovskite CH3NH3PbI3 exhibits outstanding photovoltaic performances, but the understanding of the atomic motions remains inadequate even though they take a fundamental role in transport properties. Here, we present a complete atomic dynamic picture consisting of molecular jumping rotational modes and phonons, which is established by carrying out high-resolution time-of-flight quasi-elastic and inelastic neutron scattering measurements in a wide energy window ranging from 0.0036 to 54 meV on a large single crystal sample, respectively. The ultrafast orientational disorder of molecular dipoles, activated at similar to 165 K, acts as an additional scattering source for optical phonons as well as for charge carriers. It is revealed that acoustic phonons dominate the thermal transport, rather than optical phonons due to sub-picosecond lifetimes. These microscopic insights provide a solid standing point, on which perovskite solar cells can be understood more accurately and their performances are perhaps further optimized.
Language英语
WOS IDWOS:000404455400001
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152113
Collection中国科学院大连化学物理研究所
Affiliation1.Japan Atom Energy Agcy, Japan Proton Accelerator Res Complex, Neutron Sci Sect, Tokai, Ibaraki 3191195, Japan
2.Shaanxi Normal Univ, Natl Minist Educ, Inst Adv Energy Mat, Sch Mat Sci & Engn,Key Lab Appl Surface & Colloid, Xian 710119, Peoples R China
3.Florida State Univ, FAMU FSU Coll Engn, Mat Sci & Engn Program, Dept Mech Engn, Tallahassee, FL 32310 USA
4.Comprehens Res Org Sci & Soc, Neutron Sci & Technol Ctr, Tokai, Ibaraki 3191106, Japan
5.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li, Bing,Kawakita, Yukinobu,Liu, Yucheng,et al. Polar rotor scattering as atomic-level origin of low mobility and thermal conductivity of perovskite CH3NH3PbI3[J]. NATURE COMMUNICATIONS,2017,8.
APA Li, Bing.,Kawakita, Yukinobu.,Liu, Yucheng.,Wang, Mingchao.,Matsuura, Masato.,...&Liu, Shengzhong .(2017).Polar rotor scattering as atomic-level origin of low mobility and thermal conductivity of perovskite CH3NH3PbI3.NATURE COMMUNICATIONS,8.
MLA Li, Bing,et al."Polar rotor scattering as atomic-level origin of low mobility and thermal conductivity of perovskite CH3NH3PbI3".NATURE COMMUNICATIONS 8(2017).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Bing]'s Articles
[Kawakita, Yukinobu]'s Articles
[Liu, Yucheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Bing]'s Articles
[Kawakita, Yukinobu]'s Articles
[Liu, Yucheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Bing]'s Articles
[Kawakita, Yukinobu]'s Articles
[Liu, Yucheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.