Effects of Antimony Doping in Polycrystalline CdTe Thin-Film Solar Cells

Okamoto, Tamotsu; Ikeda, Shigeyuki; Nagatsuka, Satsuki; Hayashi, Ryoji; Yoshino, K.; Kanda, Yohei; Noda, Akira; Hirano, R.

doi:10.7567/jjap.51.10nc12

Cited by 10 publications

(14 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The CdTe solar cells were fabricated by the method reported in previous papers. [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] For evaluation of the γ-ray tolerance, γ-ray irradiation was divided into multiple time-frames. γ irradiations were provided at the 60 Co γ-ray irradiation facility at Institute for Integrated Radiation and Nuclear Science, Kyoto University.…”

Section: Methodsmentioning

confidence: 99%

Gamma-ray irradiation effects on CdTe solar cell dosimeter

Okamoto

Igari

Fukui

et al. 2021

Jpn. J. Appl. Phys.

Self Cite

View full text Add to dashboard Cite

Compact and radiation-tolerant radiation dosimeter without bias voltage application using solar cells such as CdTe was proposed for severe radiation environment near a nuclear reactor pressure vessel. In this work, γ-ray tolerance and γ-ray detection characteristics of CdTe solar cells were investigated. It was found that the CdTe solar cell has sufficient tolerance against γ-ray exposure up to 3 MGy. It was demonstrated that γ-ray induced current density linearly increased with increasing γ-ray intensity in the range up to approximately 1.5 kGy h−1. This result indicates that high dose-rate radiation detection can be performed using solar cells without voltage application. In addition, γ-ray sensitivity was successfully improved by a stack of CdTe solar cells with parallel connections. Furthermore, γ rays can be detected with high responsivity and small noise even under a high flux neutron environment.

show abstract

Section: Methodsmentioning

confidence: 99%

Gamma-ray irradiation effects on CdTe solar cell dosimeter

Okamoto

Igari

Fukui

et al. 2021

Jpn. J. Appl. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The CdTe solar cells were fabricated by the method reported in previous papers. [14][15][16][17][18][19][20] The active area of the CdTe solar cells was 3 © 8 mm 2 . The carbon back electrodes were prepared by screen printing.…”

Section: Methodsmentioning

confidence: 99%

“…13) In CdTe solar cells, a carbon electrode is widely used as a back contact, because it has a large work function of approximately 5 eV, which is required for ohmic contact to p-CdTe layers. [1][2][3][14][15][16][17][18][19][20] However, the carbon electrode has relatively high resistivity. CdTe solar cells have high series resistance compared with other solar cells such as Si-based and copper indium gallium diselenide (CIGS)-based solar cells.…”

Section: Introductionmentioning

confidence: 99%

“…CdTe solar cells have high series resistance compared with other solar cells such as Si-based and copper indium gallium diselenide (CIGS)-based solar cells. [1][2][3][14][15][16][17][18][19][20] The high resistance of the carbon back electrodes is one of the factors behind the high series resistance of CdTe solar cells. Carbon nanotubes (CNTs) have a large work function 21) and are expected to have high conductivity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fabrication of polycrystalline CdTe thin-film solar cells using carbon electrodes with carbon nanotubes

Okamoto

Hayashi

Ogawa

et al. 2015

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

The effects of adding carbon nanotubes (CNTs) to carbon back electrodes in polycrystalline CdTe thin-film solar cells were investigated. The CNTs were prepared by arc discharge under atmospheric pressure. The conductivity of the obtained CNT film with a density of 1.65 g/cm 3 was approximately 2.6 ' 10 3 S/cm. In the CdTe solar cells using carbon back electrodes with CNTs, the fill factor (FF) was improved as a result of adding CNTs with a concentration of 1 to 5 wt %. The improvement of FF was mainly due to the decrease in the series resistance of the CdTe solar cell. Furthermore, the open-circuit voltage (V OC ) was improved by the CNT addition. The improvement of V OC was probably due to the reduction of the back barrier at the back contact.

show abstract

“…For this reason, in recent times extrinsic doping of CdTe has been one of the most challenging topics. CdTe can be doped in both p and n-type configuration; for p-type group I and V elements are used [102][103][104].…”

Section: Increasing the Net Charge Density: Dopingmentioning

confidence: 99%

CdTe-Based Thin Film Solar Cells: Past, Present and Future

2021

View full text Add to dashboard Cite

CdTe is a very robust and chemically stable material and for this reason its related solar cell thin film photovoltaic technology is now the only thin film technology in the first 10 top producers in the world. CdTe has an optimum band gap for the Schockley-Queisser limit and could deliver very high efficiencies as single junction device of more than 32%, with an open circuit voltage of 1 V and a short circuit current density exceeding 30 mA/cm2. CdTe solar cells were introduced at the beginning of the 70s and they have been studied and implemented particularly in the last 30 years. The strong improvement in efficiency in the last 5 years was obtained by a new redesign of the CdTe solar cell device reaching a single solar cell efficiency of 22.1% and a module efficiency of 19%. In this paper we describe the fabrication process following the history of the solar cell as it was developed in the early years up to the latest development and changes. Moreover the paper also presents future possible alternative absorbers and discusses the only apparently controversial environmental impacts of this fantastic technology.

show abstract

Effects of Antimony Doping in Polycrystalline CdTe Thin-Film Solar Cells

Cited by 10 publications

References 15 publications

Gamma-ray irradiation effects on CdTe solar cell dosimeter

Gamma-ray irradiation effects on CdTe solar cell dosimeter

Fabrication of polycrystalline CdTe thin-film solar cells using carbon electrodes with carbon nanotubes

CdTe-Based Thin Film Solar Cells: Past, Present and Future

Contact Info

Product

Resources

About