Small molecule organic solar cells with enhanced near-IR photoactivity: The role of texturing and molecular architecture of the active layers on solar cell performance

Neal R Armstrong, Diogenes Placencia, Derek Manglesdorf, Weining Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Small molecule organic solar cells (OPV), using donor layers based on tetravalent and trivalent metal phthalocyanines (e.g. oxo-titanium TiOPc, or chloroindium CllnPc), are discussed here. Asdeposited thin films of these Pcs undergo phase changes to form polymorphs with excellent near-IR photoactivity, accompanied by nano-texturing of the donor layers. In OPVs based on Pc/C 60heterojunctions, this results in a factor of up to 5x increase in short-circuit photocurrents (Jsc) and power conversion efficiencies. Fully optimized single junction OPVs based on these materials may ultimately approach 6% efficiencies, however their biggest impact is in providing guidance for the formation of new, solution processable forms of these materials, which retain this near-IR sensitivity and high power conversion efficiencies.

Original languageEnglish (US)
Title of host publicationConference Record of the IEEE Photovoltaic Specialists Conference
Pages503-507
Number of pages5
DOIs
StatePublished - 2010
Event35th IEEE Photovoltaic Specialists Conference, PVSC 2010 - Honolulu, HI, United States
Duration: Jun 20 2010Jun 25 2010

Other

Other35th IEEE Photovoltaic Specialists Conference, PVSC 2010
CountryUnited States
CityHonolulu, HI
Period6/20/106/25/10

Fingerprint

Texturing
Conversion efficiency
Solar cells
Molecules
Polymorphism
Photocurrents
Short circuit currents
Titanium
Thin films
Metals
Organic solar cells

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

Cite this

Small molecule organic solar cells with enhanced near-IR photoactivity : The role of texturing and molecular architecture of the active layers on solar cell performance. / Armstrong, Neal R; Placencia, Diogenes; Manglesdorf, Derek; Wang, Weining.

Conference Record of the IEEE Photovoltaic Specialists Conference. 2010. p. 503-507 5616797.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Armstrong, NR, Placencia, D, Manglesdorf, D & Wang, W 2010, Small molecule organic solar cells with enhanced near-IR photoactivity: The role of texturing and molecular architecture of the active layers on solar cell performance. in Conference Record of the IEEE Photovoltaic Specialists Conference., 5616797, pp. 503-507, 35th IEEE Photovoltaic Specialists Conference, PVSC 2010, Honolulu, HI, United States, 6/20/10. https://doi.org/10.1109/PVSC.2010.5616797
Armstrong, Neal R ; Placencia, Diogenes ; Manglesdorf, Derek ; Wang, Weining. / Small molecule organic solar cells with enhanced near-IR photoactivity : The role of texturing and molecular architecture of the active layers on solar cell performance. Conference Record of the IEEE Photovoltaic Specialists Conference. 2010. pp. 503-507
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