Acid additives enhancing the conductivity of spiro-OMeTAD toward high-efficiency and hysteresis-less planar perovskite solar cells

Li, Zhen; Tinkham, Jonathan; Schulz, Philip; Yang, Mengjin; Kim, Dong Hoe; Berry, Joseph; Sellinger, Alan; Zhu, Kai

doi:10.1002/aenm.201601451

Acid additives enhancing the conductivity of spiro-OMeTAD toward high-efficiency and hysteresis-less planar perovskite solar cells

Journal Article · Fri Oct 28 00:00:00 EDT 2016 · Advanced Energy Materials

DOI:https://doi.org/10.1002/aenm.201601451· OSTI ID:1345355

Li, Zhen ^[1]; Tinkham, Jonathan ^[2]; Schulz, Philip ^[1]; Yang, Mengjin ^[1]; Kim, Dong Hoe ^[1]; Berry, Joseph ^[1]; Sellinger, Alan ^[3]; Zhu, Kai ^[1]

National Renewable Energy Lab. (NREL), Golden, CO (United States)
Colorado School of Mines, Golden, CO (United States)
National Renewable Energy Lab. (NREL), Golden, CO (United States); Colorado School of Mines, Golden, CO (United States)

A general doping strategy, using a wide range of acids with different pK_a values as additive, is demonstrated to enhance the conductivity of spiro-OMeTAD, the dominant hole transport material in perovskite solar cells (PSCs). Here, hysteresis-less planar PSCs with ≈19% efficiency and better open-circuit voltage and fill factor is achieved with acid doped spiro-OMeTAD.

View Accepted Manuscript (DOE)

Research Organization:: NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))

Sponsoring Organization:: USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1345355

Alternate ID(s):: OSTI ID: 1401245

Report Number(s):: NREL/JA--5900-66721

Journal Information:: Advanced Energy Materials, Journal Name: Advanced Energy Materials Journal Issue: 4 Vol. 7; ISSN 1614-6832

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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14 SOLAR ENERGY
36 MATERIALS SCIENCE
acids
doping
hole transport layer
perovskite solar cells

Acid additives enhancing the conductivity of spiro-OMeTAD toward high-efficiency and hysteresis-less planar perovskite solar cells

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