TY - JOUR
T1 - Molecular/polymeric metallaynes and related molecules
T2 - Solar cell materials and devices
AU - Xu, Linli
AU - Ho, Cheuk Lam
AU - Liu, Li
AU - Wong, Wai Yeung
N1 - Funding Information:
We are grateful to the financial support from Hong Kong Research Grants Council of HKSAR ( PolyU 12338416 ), Areas of Excellence Scheme, University Grants Committee of HKSAR ( AoE/P-03/08 ), the National Natural Science Foundation of China (project number 21671061), and the Hong Kong Polytechnic University (1-ZE1C).
PY - 2018/10/15
Y1 - 2018/10/15
N2 - Energy remains one of the great challenges for the world. There is a considerable interest in developing renewable energy resources and improving the technologies for energy conversion. In this context, solar energy is a source with the proven capacity to meet the increasing global energy needs. In recent years, efficient organic solar cells (OSCs) have been fabricated using organic polymers and small molecules. Metalated conjugated organic molecules have also been shown to be good alternatives to the all-organic congeners and have demonstrated good promise as solar cell materials in OSCs and dye-sensitized solar cells (DSSCs). Among these, soluble molecular/polymeric metallaynes and their acetylide-functionalized metalloporphyrins show promising results in much of these investigations with the best power conversion efficiencies of 9.06% (for single-layer OSC), 12.5% (for tandem OSC) and 13.2% (for co-sensitized DSSC) to date. This review summarizes the recent advances of this field. Various factors influencing the device performance such as the nature of metal center and organic spacer, absorption coefficient, bandgap energy, charge carrier mobility, accessibility of triplet excitons and blend film morphology of these materials will be discussed. Given the diversity of transition metals available (for example, Pt, Zn, Ru) and structural versatility of the organic components, it is anticipated that this nascent field using metalated organic materials would continue to lead to exciting prospects in the near future.
AB - Energy remains one of the great challenges for the world. There is a considerable interest in developing renewable energy resources and improving the technologies for energy conversion. In this context, solar energy is a source with the proven capacity to meet the increasing global energy needs. In recent years, efficient organic solar cells (OSCs) have been fabricated using organic polymers and small molecules. Metalated conjugated organic molecules have also been shown to be good alternatives to the all-organic congeners and have demonstrated good promise as solar cell materials in OSCs and dye-sensitized solar cells (DSSCs). Among these, soluble molecular/polymeric metallaynes and their acetylide-functionalized metalloporphyrins show promising results in much of these investigations with the best power conversion efficiencies of 9.06% (for single-layer OSC), 12.5% (for tandem OSC) and 13.2% (for co-sensitized DSSC) to date. This review summarizes the recent advances of this field. Various factors influencing the device performance such as the nature of metal center and organic spacer, absorption coefficient, bandgap energy, charge carrier mobility, accessibility of triplet excitons and blend film morphology of these materials will be discussed. Given the diversity of transition metals available (for example, Pt, Zn, Ru) and structural versatility of the organic components, it is anticipated that this nascent field using metalated organic materials would continue to lead to exciting prospects in the near future.
KW - Acetylide
KW - Dye-sensitized solar cell
KW - Metallayne
KW - Organic solar cell
KW - Transition metal
UR - http://www.scopus.com/inward/record.url?scp=85034565884&partnerID=8YFLogxK
U2 - 10.1016/j.ccr.2017.10.015
DO - 10.1016/j.ccr.2017.10.015
M3 - Review article
AN - SCOPUS:85034565884
SN - 0010-8545
VL - 373
SP - 233
EP - 257
JO - Coordination Chemistry Reviews
JF - Coordination Chemistry Reviews
ER -