Comparison of small amounts of polycrystalline donor materials in C 70-based bulk heterojunction photovoltaics and optimization of dinaphthothienothiophene based photovoltaic

Yan Qiong Zheng; William J. Potscavage; Qi Sheng Zhang; Takeshi Komino; Masatsugu Taneda; Chihaya Adachi

doi:10.1016/j.orgel.2014.01.012

Comparison of small amounts of polycrystalline donor materials in C ₇₀-based bulk heterojunction photovoltaics and optimization of dinaphthothienothiophene based photovoltaic

Yan Qiong Zheng, William J. Potscavage, Qi Sheng Zhang, Takeshi Komino, Masatsugu Taneda, Chihaya Adachi

Applied Chemistry

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Comparative studies of the effects of a series of polycrystalline donors on the performance of 95 wt.%-C₇₀-based bulk-heterojunction (BHJ) photovoltaics were conducted. A BHJ based on the wide band-gap molecule dinaphthothienothiophene (DNTT) shows power conversion efficiency (η_PCE) of up to 4.28%. The photovoltaic parameters are superior to those of devices using the similar molecule pentacene (PEN) or polycrystalline copper phthalocyanine (CuPc) for donor concentrations from 5 to 30 wt.%. The low-lying DNTT ionization potential and the high μ_h in the DNTT blend support the excellent DNTT device performance. The low performance of BHJs with 5 wt.% PEN and 5 wt.% CuPc may stem from strong exciplex recombination in the PEN:C₇₀ blend and limited hole mobility combined with geminate polaron-pair recombination in the CuPc:C₇₀ blend. The zero-field hole mobility of the blends with 5 wt.% donor has a positive correlation with the corresponding device performance. The η_PCE of a 5 wt.%-DNTT BHJ cell was improved to 4.92% by optimizing the cathode buffer layer.

Original language	English
Pages (from-to)	878-885
Number of pages	8
Journal	Organic Electronics
Volume	15
Issue number	4
DOIs	https://doi.org/10.1016/j.orgel.2014.01.012
Publication status	Published - Apr 2014

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Chemistry(all)
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.orgel.2014.01.012

Cite this

Comparison of small amounts of polycrystalline donor materials in C ₇₀-based bulk heterojunction photovoltaics and optimization of dinaphthothienothiophene based photovoltaic. / Zheng, Yan Qiong; Potscavage, William J.; Zhang, Qi Sheng et al.
In: Organic Electronics, Vol. 15, No. 4, 04.2014, p. 878-885.

Research output: Contribution to journal › Article › peer-review

@article{de2b55e7b5dc4ca188f0f5c8117e42f5,

title = "Comparison of small amounts of polycrystalline donor materials in C 70-based bulk heterojunction photovoltaics and optimization of dinaphthothienothiophene based photovoltaic",

abstract = "Comparative studies of the effects of a series of polycrystalline donors on the performance of 95 wt.%-C70-based bulk-heterojunction (BHJ) photovoltaics were conducted. A BHJ based on the wide band-gap molecule dinaphthothienothiophene (DNTT) shows power conversion efficiency (ηPCE) of up to 4.28%. The photovoltaic parameters are superior to those of devices using the similar molecule pentacene (PEN) or polycrystalline copper phthalocyanine (CuPc) for donor concentrations from 5 to 30 wt.%. The low-lying DNTT ionization potential and the high μh in the DNTT blend support the excellent DNTT device performance. The low performance of BHJs with 5 wt.% PEN and 5 wt.% CuPc may stem from strong exciplex recombination in the PEN:C70 blend and limited hole mobility combined with geminate polaron-pair recombination in the CuPc:C70 blend. The zero-field hole mobility of the blends with 5 wt.% donor has a positive correlation with the corresponding device performance. The ηPCE of a 5 wt.%-DNTT BHJ cell was improved to 4.92% by optimizing the cathode buffer layer.",

author = "Zheng, {Yan Qiong} and Potscavage, {William J.} and Zhang, {Qi Sheng} and Takeshi Komino and Masatsugu Taneda and Chihaya Adachi",

note = "Funding Information: This work was supported financially by the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST) and by the International Institute for Carbon Neutral Energy Research (WPI-I2CNER), sponsored by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan.",

year = "2014",

month = apr,

doi = "10.1016/j.orgel.2014.01.012",

language = "English",

volume = "15",

pages = "878--885",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier",

number = "4",

}

TY - JOUR

T1 - Comparison of small amounts of polycrystalline donor materials in C 70-based bulk heterojunction photovoltaics and optimization of dinaphthothienothiophene based photovoltaic

AU - Zheng, Yan Qiong

AU - Potscavage, William J.

AU - Zhang, Qi Sheng

AU - Komino, Takeshi

AU - Taneda, Masatsugu

AU - Adachi, Chihaya

N1 - Funding Information: This work was supported financially by the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST) and by the International Institute for Carbon Neutral Energy Research (WPI-I2CNER), sponsored by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan.

PY - 2014/4

Y1 - 2014/4

N2 - Comparative studies of the effects of a series of polycrystalline donors on the performance of 95 wt.%-C70-based bulk-heterojunction (BHJ) photovoltaics were conducted. A BHJ based on the wide band-gap molecule dinaphthothienothiophene (DNTT) shows power conversion efficiency (ηPCE) of up to 4.28%. The photovoltaic parameters are superior to those of devices using the similar molecule pentacene (PEN) or polycrystalline copper phthalocyanine (CuPc) for donor concentrations from 5 to 30 wt.%. The low-lying DNTT ionization potential and the high μh in the DNTT blend support the excellent DNTT device performance. The low performance of BHJs with 5 wt.% PEN and 5 wt.% CuPc may stem from strong exciplex recombination in the PEN:C70 blend and limited hole mobility combined with geminate polaron-pair recombination in the CuPc:C70 blend. The zero-field hole mobility of the blends with 5 wt.% donor has a positive correlation with the corresponding device performance. The ηPCE of a 5 wt.%-DNTT BHJ cell was improved to 4.92% by optimizing the cathode buffer layer.

AB - Comparative studies of the effects of a series of polycrystalline donors on the performance of 95 wt.%-C70-based bulk-heterojunction (BHJ) photovoltaics were conducted. A BHJ based on the wide band-gap molecule dinaphthothienothiophene (DNTT) shows power conversion efficiency (ηPCE) of up to 4.28%. The photovoltaic parameters are superior to those of devices using the similar molecule pentacene (PEN) or polycrystalline copper phthalocyanine (CuPc) for donor concentrations from 5 to 30 wt.%. The low-lying DNTT ionization potential and the high μh in the DNTT blend support the excellent DNTT device performance. The low performance of BHJs with 5 wt.% PEN and 5 wt.% CuPc may stem from strong exciplex recombination in the PEN:C70 blend and limited hole mobility combined with geminate polaron-pair recombination in the CuPc:C70 blend. The zero-field hole mobility of the blends with 5 wt.% donor has a positive correlation with the corresponding device performance. The ηPCE of a 5 wt.%-DNTT BHJ cell was improved to 4.92% by optimizing the cathode buffer layer.

UR - http://www.scopus.com/inward/record.url?scp=84894562223&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84894562223&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2014.01.012

DO - 10.1016/j.orgel.2014.01.012

M3 - Article

AN - SCOPUS:84894562223

SN - 1566-1199

VL - 15

SP - 878

EP - 885

JO - Organic Electronics

JF - Organic Electronics

IS - 4

ER -