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Title: Scenario development for high βp low torque plasma with qmin above 2 and large-radius internal transport barrier in DIII-D

Journal Article · · Nuclear Fusion
 [1];  [1];  [2];  [3];  [4];  [1];  [3];  [5];  [6];  [6];  [7];  [1];  [1]
  1. Chinese Academy of Sciences (CAS), Anhui, Hefei (China). Inst. of Plasma Physics
  2. Zhejiang Univ., Hangzhou (China). Inst. for Fusion Theory and Simulation
  3. General Atomics, San Diego, CA (United States)
  4. Soochow Univ., Suzhou, Jiangsu (China)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Univ. of Wisconsin, Madison, WI (United States)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
+ Show Author Affiliations

Here, we demonstrate graded band gap perovskite solar cells with conversion efficiencies averaging 18.3%, with a best of 21.1%, all without reflective coatings. An analysis of the experimental data yields high fill factors of ~75% and high short circuit current densities up to 46.2mA/cm2. These cells display the highest efficiency ever reported for perovskite solar cells.

Research Organization:
General Atomics, San Diego, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Natural Science Foundation of China (NSFC); Chinese Academy of Sciences; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
FC02-04ER54698; 11575248; 11305209; 2015GB103001; 2015GB102004; 2015GB101000; AC52-07NA27344
OSTI ID:
1372052
Alternate ID(s):
OSTI ID: 1327549; OSTI ID: 1502021; OSTI ID: 1542748
Report Number(s):
LLNL-JRNL-750281; LLNL-JRNL-769691
Journal Information:
Nuclear Fusion, Vol. 57, Issue 2; Related Information: S. Ding, G.S. Xu, Q. Wang, W.M. Solomon, Y. Zhao, X. Gong, A.M. Garofalo, C.T. Holcomb, G. McKee, Z. Yan, H.Q. Wang, J. Qian, and B.N. Wan, "Scenario development for high Bp low torque plasma with qmin above 2 and large-radius internal transport barrier in DIII-D," Nucl. Fusion 57, 022016 (2017).; ISSN 0029-5515
Publisher:
IOP ScienceCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

References (12)

A Fusion Nuclear Science Facility for a fast-track path to DEMO journal October 2014
Compatibility of internal transport barrier with steady-state operation in the high bootstrap fraction regime on DIII-D journal November 2015
Fast-ion transport in qmin>2, high- β steady-state scenarios on DIII-Da) journal May 2015
Progress toward steady-state tokamak operation exploiting the high bootstrap current fraction regime journal June 2016
Roles of Electric Field Shear and Shafranov Shift in Sustaining High Confinement in Enhanced Reversed Shear Plasmas on the TFTR Tokamak journal April 1997
Characteristics of internal transport barriers in JT-60U reversed shear plasmas journal July 2001
Properties of internal transport barrier formation in JT-60U journal July 2004
The use of internal transport barriers in tokamak plasmas journal November 2004
A dimensionless criterion for characterizing internal transport barriers in JET journal May 2002
Stationary, high bootstrap fraction plasmas in DIII-D without inductive current control journal May 2005
Edge issues in ITB plasmas in JET journal October 2002
An Eulerian gyrokinetic-Maxwell solver journal April 2003

Cited By (1)

Study of Alfven eigenmodes stability in plasma with multiple NBI driven energetic particle species journal June 2019

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